Chemistry Middle School

Plz I nee help will give brainliest

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Answer 1

The answer is D. Happy to help ☺️

Related Questions

please help me it is easy I will reward Brainliest

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Answer:

Parallel Circuit

Answer: It is a parallel circuit.
Explanation: A series circuit doesn’t repeat itself as a parallel circuit does.

If you could interview the author of this article, what questions would you ask in order to clarify evidence about the factors that have caused the rise in global temperatures?

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Answer: how many industries and factories are in 'x' country.

Explanation: the main causes of global temperature rising are factories because, harmful gases can be released. And if the number of the factories increase the percentage of the harmful gas that is being released also increases. So to clarify evidence you can ask :- how many factories does country 'x' have?

By the way 'x' means any one country.

What is the unit of measurement for the amount of electrical energy consumed during work?

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Answer:

Joule

Electrical Energy: The Volt

Explanation:

As we now know that energy is the capacity to do work, with the standard unit used for energy (and work) being the Joule. A joule of energy is defined as the energy expended by one ampere at one volt, moving in one second.

Answer:

Watt

Explanation:

I took the quiz.

Explain how the model you developed shows that when oxygen combines with hydrogen to form water, no atoms are left over from the reaction.

Enter Text

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Two of each hydrogen bond to one oxygen creating 2 hydrogen and one oxygen molecule H2O.

The making of any compound requires the joining of a different element with the help of various bonds, these bonds are as follows:-

Covalent bondIonic bondSigma bond

According to the question, the atoms of oxygen and the hydrogen molecules joins together in their vacant space and join together with the help of a covalent bond.

The bond changes the physical state of the element and together they form a liquid which is water.

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What defines an interaction between two substances as a chemical reaction is when one or more new substances form from one or more other substances.
What new substances were formed?

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Answer:

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Explanation:

I hope this helps!

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The chemical reaction is the combination of atomic orbitals of different or same elements. The new product formed can be a molecule or compound which is having different physical and chemical properties than the initial substances.

What are chemical reactions ?

A chemical reaction is a chemical change that make the formation or breaking or both of chemical bonds. There are different types of chemical reactions such as synthesis reactions, decomposition, combustion, displacement reaction etc.

The product of these reactions depends on how the elements in the reactant side reorganize. The physical and chemical properties of the new product will be different from that of the initial substance.

The interaction of two atoms can be of different types depends on their nature and can bond through ionic bonding, covalent bonding, hydrogen bonding etc.

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If a fan draws 220 watts on a 120- volt circuit what is the current being drawn?
1.83 amperes
15 amperes
5 amperes
22 amperes

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the answer would be 1.83A. the amperes can be calculated by the formula watts/volts.

Answer:

1.83 ampheres

GIVING BRAINLIEST FIVE STARS AND HEART!
In your own words explain the difference between potential energy and kinetic energy. Give an example of how one can be transformed into the other.

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Answer:

Potential energy moves kinetic energy doesnt.

Explanation:

Be serious with your answers please!!!!

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Answer:

A is your answer-all of the reactants were liquid and evaporated

The answer is A :))))

The solstices and equinoxes, and the number of hours of daylight associated with each, are major factors in the seasons. Use the drop-down menus to identify the month when each of these events occurs.

The winter solstice in the Northern Hemisphere:

An equinox in both hemispheres:

The summer solstice in the Northern Hemisphere:

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Answer:

1. December

2. March

3. June

Explanation:

(The exact order :D)

Edge2021

The following natural Phenomenons

The winter solstice in the Northern Hemisphere:An equinox in both hemispheres:The summer solstice in the Northern Hemisphere:

happens at these times respectively

a) December

b) March and September

c) June

What are the months when each of these events occurs?

The winter solstice in the Northern Hemisphere:

Winter solstice happens in the month of December in the northern hemisphere

Additionally, the Winter solstice happens in the month of June in the southern hemisphere.

An equinox in both hemispheres:

equal amounts of daytime and nighttime are experienced in the Northern and Southern Hemispheres, it happens in the month of March and September

The summer solstice in the Northern Hemisphere happens in the month of June.

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Metal radiator. When hot water flows through the coils of the radiator , the metal heats up quickly by conduction and then radiates thermal energy into the surrounding air.

Answer: Metal radiator

I'd say metals are an example of a thermal conductor. This is because the electrons in metals freely move electrons which can be transferred into thermal energy very quickly and easily.

I got really confused can someone help me!

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Answer:

Researchers refer to DNA found in the cell's nucleus as nuclear DNA. An organism's complete set of nuclear DNA is called its genome. Besides the DNA located in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.

Explanation:

Answer:

DNA is found in the cell's nucleus as nuclear DNA.

Explanation:

PLEASE DUE AT 11:00 ill give brainliest pleaseeeeee

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Answer:

The pressure decreases :)

Explanation:

Please help (i know this is a lot but it makes no sense!!!!)

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Is this math or chemistry....:

Formation of Water Reaction

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Answer:

Oxygen had 2 before and 2 after.

Hydrogen had 4 before and 4 after.

Explanation:

The atoms are transferred, not transformed.

Answer:

hydrogen and oxygen combine to water by the formula 2h2+02 the formation reaction of this process is h2+1\2 02 how to make water from hydrogen and oxygen limiting reactant definition limiting reagent

I kinda need help . And please don't copy stuff down from the internet.

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One of the answers is Solar to Electrical hope this helps.

solar technology converts sunlight into direct current electricity by using semiconductors contained in solar panels, when the sun hits the semiconductor material electrons are freed it forms an electric current

How many different design ideas of the puff car do you need to draw? Question 2 options:
A. 6 B. 1 C. 3

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The answer is A hopefully it is ok ✅

Potassium (K) is found in Group 1. Fluorine (F) is found in Group 17. When these atoms bind, which will form the positive ion, and which will form the negative ion? Why? Hint: Refer back to the periodic table.

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Answer:

The oppositely charged ions form an electrostatic attraction, which is the ionic bond. The compound potassium fluoride (KF) results, and since the potassium and fluoride ions have equal but opposite charges, the compound is neutral (but not the individual ions in the compound).

Explanation:

hope this helps i dont know if it will

It’s a Gas!

Methane (CH4) is a naturally occurring gas that is used as a source of fuel. It is the primary component of the fossil fuel called natural gas. When methane burns, it reacts with oxygen (O2) in the air to produce carbon dioxide (CO2) and water (H2O).

HighLighter PopupUnderline Selected TextGreen Color HighlightOrange Color HighlightYellow Color HighlightBlue Color HighlightPink Color HighlightRemove Color Highlight

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6.) 1
7.) 1
8.) 4
9.)4
10.) 4
11.) 4

I am pretty sure this is the answer

the hot metal bar starts cooling as soon as it is pulled out of the forge (oven). where does the heat go? choose all that apply

a.) the tools in the form or conduction
b.) his skin in the form of radiation
c.) the air in the form of convection

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Answer:

a) in form of conduction

If you don’t discover a management technique to restore nutrients to your soil, what will happen to your crops? Select all that apply
A.Your vegetables will win prizes for being unusually large.
B.Anything you grow will be at high risk for pesticides and diseases.
C.Your land could stop producing vegetables altogether.
D.Your land will be worth less money.

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B or d more both but hope it helps

If crops are not getting proper nutrients from soil we may have to apply fertilizers which adversely affect the soil if no nutrient is restored to soil, it will not produce vegetables and your land will be worth less money. Thus, options C and D are correct.

What are nutrients?

Nutrients are ions, minerals and proteins that is very essential for living things. Without proper nutrition, the growth of both plants and animals become will be declined.

Plants needs some elements such as nitrogen, potassium, calcium, phosphorus etc. for their growth. They absorbs these ions and water from soil and distribute all over its body through channels.

If plants are getting no nutrients from the soil their will not grow and no new vegetables will be formed in such a land where there on management to restore soil nutrients.

In such situations, we have to apply fertilizers which have may bad impacts too. Hence, without nutrients the vegetables will not grow and the land will be worth less of money.

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A box sitting on a floor. Maria and Sam push on the box in opposite direction. Maria pushes to the right using 95 N of Force and Sam pushes to the left applying 80 N of Force. If the box moves, which way is it going and with how much force?

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It would move to the right with 15 N of force :)

It’s going to the right because Maria has more force

Zinc chloride (ZnCl2) is used as a flux when joining metals. It also is used to fireproof and remove odor from clothing. Reacting the metal zinc (Zn) with hydrochloric acid (HCl) to produce zinc chloride and hydrogen (H2). Use the models above to demonstrate that mass is conserved when zinc reacts with hydrochloric acid.

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Answer:

The atoms are just rearranged but there is no decrease or increase in the mass. A law fo conservation.

Explanation:

For my science class, we were doing Savvas too so I know the answer for this question.

According to the law of conservation of mass and as depicted in the model there are equal number of atoms of reactants and products , thus demonstrating that mass is conserved.

What is law of conservation of mass?

According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.

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A man is traveling on a camel through the desert. The Camel travels 25 miles in 5 hours. What is the average speed of the camel?

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Answer:

5mph

Explanation:

25/5=5

The average speed is 5 mph

a large block of ice can heat up a small pool of liquid nitrogen. ice is 0 celcius but liquid nitrogen is -210 celsius. so the heat from the ice will warm up the nitrogen pool until they reach equilibrium. true or false?

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I believe the correct answer is true

please help me I would apprecitated

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Answer
1.5 miles per hour

hope this helps and have a wonderful day :)

1.5 miles per hour. please give me the brainliest. have a great day!! :)

-The students in Ms. Wilson’s science class were asked to create analogies to describe the function of organelles in a cell. Of the statements below, which one best represents the organelle and its function? a. Camille described the nucleus as a donut because it has a hole in the middle of it. b. Simon described the chloroplast as a water filter because it filters out the bad things from entering a cell. c. Ricardo described the vacuole as a security guard because it allows things into the cell.
d. Angie described the lysosome as a vacuum because its function is to clean the cell.

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Answer:

D. Angie described the lysosome as a vacuum because its function is to clean the cell.

Explanation:

Because vacuumes clean and so do that part of the organelles

What is the resistance of a hairdryer if it is 120 volts with a current of 15 amperes?
8 ohms
15 ohms
22 ohms
2 ohms

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Answer: 15 ohms is the correct awnser

15 ohms!! :) have a great day

When one thing in a _____ circuit stops working, the whole circuit stops working.

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Answer: When one thing in a electric circuit stops working, the whole circuit stops working.

Explanation:

The circuit in series works in a manner that, when one thing stops in the circuit, the whole circuit stops.

What is a circuit?

A circuit is the way of passage of electricity including the electrical devices, electrical wires, energy source such as battery etc. There are two types of circuits namely parallel circuit and series circuit.

In a parallel circuit, all the components are arranged in a parallel fashion. For instance if there are three resistors, each resistors will be parallel each other resistors.

In series circuits, all electrical components are arranged in a series. Thu for a group of bulbs, the second tail of first bulb is connected to the first tail of second bulb and so on. So that, the the effect of electrical current will be same for all.

Therefore, in a series circuit When one thing stops working, the whole circuit stops working.

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GIVING BRAINLIEST FIVE STARS AND 25 POINTS!

In your own words answer the following essay question use 5-7 sentences:
Why does a car’s engine become hot while it is running?

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Answer:

Engines can overheat for many reasons. In general, it's because something's wrong within the cooling system and heat isn't able to escape the engine compartment. The source of the issue could include a cooling system leak, faulty radiator fan, broken water pump, or clogged coolant hose.

Explanation:

HOPE IT WILL HELP U

Answer:

There might be some problem in the engine's cooling system.

Explanation:

There are many reasons why your car could be overheating, but the basic process of overheating involves a problem with the vehicle's cooling system that doesn't allow heat to leave the engine compartment. This is often due to a leak or blockage somewhere in the engine cooling system or other components.

When does a short circuit occur?

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Answer:

A short circuit is when there is a low resistance connection between two conductors that are supplying electrical power to a circuit. This would generate an excess of voltage streaming and cause excessive flow of current in the power source. The electricity will flow through a 'short' route and cause a short circuit.

Other Questions

Which type of money does the diagram best describe??MoneyGets its value from the governmentIs common throughout the world todayIncludes U.S. and Canaddollar Rewrite the following in a short version:Most can agree that the Brown v. Board of Education of Topeka, Kansas case was one that greatly influenced the way colored people of America were treated, as it struck down segregation in schools across the nation and created a more equal and fair environment for those of color. There were some however who believed that by doing so, the Supreme Court was displaying a clear abuse of judicial power, ultimately leading to the creation of the Constitution of Principles, otherwise informally known as the Southern Manifesto. Strom Thurmond and Richard Russell Jr., authors of the Constitution of Principles, very strongly opposed the Supreme Court's decision to commence the national integration of public schools. When the news broke to the public that Chief Justice Earl Warren had ruled this verdict, both men decided to take action and construct the Southern Manifesto, where they addressed what they believed to be the unconstitutional nature of the Courts ruling. They, along with the other 101 congressmen from the Deep South that signed their document, believed that the Courts choice represented an evident abuse of Judicial power and that the amendment they were referring to when accumulating their conclusion did not involve the systems of education. Thurmond and Russell Jr. claimed that the decision made to integrate public schools was encroaching upon the rights of each individual state as well as the people involved. They argued that while the Supreme Court decided to change the school system on the condition that separating blacks and whites was unconstitutional, they too were not abiding by the constitution saying, The original Constitution does not mention education. Neither does the 14th Amendment nor any other amendment. The debates preceding the submission of the 14th Amendment clearly show that there was no intent that it should affect the system of education maintained by the States, (Thurmond and Russell Jr. 1956). They also bring up several other court cases such as the Plessy v. Ferguson case and the Roberts v. City of Boston case in order to showcase other ways in which the court used the 14th amendment to aid in their choices, attempting to rule all of their decisions as disorderly and lawless acts. It sparked mass chaos and confusion, causing strain between relationships of whites and blacks. Said scenarios and arguments can be linked to the American Civil War due to the relation both the war and the Southern Manifesto had with the issue of equality among those of color and whites. Both were mainly arguments between the North and the South as well, with the South not wanting colored peoples to be equal or close to equal with white Americans. They also relate due to the same issues they had with the intervention of the Central government in states decisions, which divided the population of the country.The Brown v. Board of Education of Topeka, Kansas was a landmark Supreme Court case where Chief Justice Earl Warren stated that separate educational facilities are inherently unequal and began the process of national integration of public schools. With this came opposers who believed that this was unconstitutional and unlawful, eventually leading to the creation of the Constitution of Principles, a document which addressed such issues and beliefs. Analyzing the nature of the argument and the effect it had on the people involved, its safe to assume that the American Civil War can be linked to this specific situation given the several relations. With everything that resulted from this particular case, one can discern that it was genuinely something that had a very influential impact on America and the social treatment of those of color in America. Looking back on such things and relating them to similar issues of current times, it is quite surprising to see that such problems relating to the equality of the nation have yet to be solved. 11. The Constitution of the United States was considered an improvement over the Articles of Confederation because the Constitution gave more power to *a. slavesb. womenc. Native Americansd. the federal (national) government Type the correct answer in each box. Use numerals instead of words. Renee and David plan to file taxes as married filing jointly. They have a combined taxable income of $51,325. Use the table to determine the amount of tax due, and calculate their effective tax rate, rounding to the nearest tenth. HELP! Please help! Thank you so much!(please try to show your work)A pizzeria offers toppings of mushrooms, sausage, onions, onions olives, and peppers. How many different ways can a pizza be made, using anywhere from 0 to 5 toppings? This equation shows how the total amount of paper Scott's office has recycled depends on the number of weeks since they started the new recycling plan. p = 12w The variable w represents the number of weeks the office has been on the new recycling plan, and the variable p represents the total kilograms of paper recycled. How many weeks will it take Scott's office to recycle a total of 12 kilograms of paper? the uniform distribution over the interval 8.5 to 11.5 gallons per minute. Find the probability that between 9.0 gallons and 10.0 gallons are pumped during a randomly selected minute. Question 1: Peking Duct Tape Company has outstanding a $1,000-face-value bond with a 14 percent coupon rate and 3 years remaining until final maturity. Interest payments are made semiannually. What value should you place on this bond if your nominal annual required rate of return is 14 percent? 2. The perimeter of rectangle is 48cm. If thefiles are in the ratio 3 : 5, find the lengthof the sides 3. Why do the men near Elie's father beat and taunt him? Robert run the 100 meter dash in 13.5. later he run same distance in 10.3 seconds. how many seconds less did it take him to run the same distance the second time? what was the outcome of the united states v. nixon Do you think that the guards who made sure no one escaped, the clerks who recorded the number tattooed on every prisoner, and others who worked at the camps because they needed a job and were scared to speak out, are guilty of crimes against humanity? What factors can influence plant health? Describe three, observable characteristics that you would see in an unhealthy plant. Name the pathogen that would cause each symptom plz help meee 15 pints and brainly i just need hlp bc my dad yell at me ps this for sience 2. The line that best shows the speaker's perspective on self-identity is-A. At home in the fleet of ice-boats, sailing with the rest and tacking,O B. At home on the hills of Vermont or in the woods of Maine, or the Texan ranch,C. Of every hue and caste am I, of every rank and religion,D. The moth and the fish-eggs are in their place, Why did the people turn to the Roman Catholic Church forleadership and support during the Middle Ages? if you have 30% of 100 milliliters of an aqueous solution of ethanol, what volumes of ethanol and water are in the solution? The use of hypnosis in psychotherapy and is practiced by licensed physicians and psychologists to treat conditions including depression, anxiety, post-traumatic stress disorder (PTSD), and eating disorders is what type of hypnosis therapy? * Which phrase describes the most likely historical and cultural context of.story that begins with a description of an astronaut climbing into aspaceship?A. Exploration and adventure in the 21st centuryB. Hardships faced by American pioneers in the 1700sC. Love and loss in the 1800sD. Coming of age in modern times What is the quotient of 2 2/3 plz help