Answer:
What do you do with a sick chemist? If you can't helium, and you can't curium, then you might as well barium!
Explanation:
there
Answer:
why can you never trust a atom?
Because they literally make up everything
(i am so sorry for this lol)
What is the empirical formula for CH2OHCH2OH?
Answer:
CH3O
Explanation:
What does the law of conservation of energy imply?
O A. That energy within matter can never be released
O B.
B. Tihin atoms will always combine to give off energy
Tuhin atoms
O c. That energy can only be converted between different forms
O D. That kinetic energy can only be converted to heat
Answer:
B. That energy can only be converted between different forms
Explanation:
The law of conservation of energy implies that energy can only be converted between different forms but can neither be created nor destroyed.
Energy is the ability to do work. It is very important physical quantity that is essential to all life forms.
Energy according to the law of conservation of energy is not produced neither is it destroyed.
Energy is simply transformed from one form to another.
When cleaning a buret, begin by coating the inside with:.
Answer:
I think the answer is distilled water...
Explanation:
1. Explain again the
difference between
heat energy and
temperature.
Answer:
Heat describes the transfer of thermal energy between molecules within a system and is measured in Joules. Heat measures how energy moves or flows. ... Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (°C), Kelvin(K), Fahrenheit (°F), or Rankine (R).
Explanation:
I hope it's helpful for you
Answer: Heat Energy/Thermal Energy is not the same as temperature. You mesure how hot or cold it is with a thermometer and it shows the temperature in either Fahrenheit or Celsius. Temperture is a way to measure the warm or coldness of a object. But it is a manifestation of heat energy. "is a physical quantity that expresses the degree of hotness or coldness of a substance. It is the manifestation of thermal energy, present in all matter, which is the source of the occurrence of heat, a flow of energy, when a body is in contact with another that is colder or hotter.. Temperature is measured with a thermometer."
Explanation:
Explain how nitrogen oxides released into the atmosphere can lead to the formation of a secondary pollutant that can lead to acid deposition.
Nitrogen oxides react with oxygen and rainwater to form nitric acid a secondary pollutant which dissolves in water droplets forming acid rain.
What is a secondary pollutant?A secondary pollutant is a pollutant which results from changes that occur in an initial pollutant known as the primary pollutants.
Pollutants pose dangers to plant and animals found in a given environment.
The primary pollutant, nitrogen oxides, which are released into the atmosphere from industrial and vehicular smoke can be changed into a secondary pollutant.
Nitrogen oxides react with oxygen and rain to form nitric acid a secondary pollutant.
Nitric acid (HNO3) then enter the environment through the ground as droplets in rain forming acid rain.
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Which is the largest number expressed below?
a. 0.1 km
b. 1,000 cm
C. 10.000 mm
Answer:
A. 0.1 km
Explanation:
0.1 km is equal to 10,000 centimeters.
hope this helps!
As exact conversions, the following information is known:
1 mile = 5280 ft.
12 in. = 1 ft.
3 ft. = 1 yard
1 hr = 60 min
1 day = 24 hr
A particular species of bird can fly for 36.0 hours straight, covering a distance of 158 miles. At this rate, how many feet does the bird travel in 43.0 min?
Answer:
16607 and 5/9 feet
Explanation:
First, let's find the how fast the bird travels in an hour. Finding the miles per hour: 158/36=79/18. Convert this to miles per minute to find the distance after 43 mins. Multiplying 79/18 by 1/60, 79/1080. Multiplying this by 43 to find the distance traveled; 3397/1080. As 1 mile is equal to 5280 feet, multiply by 5280 to find distance in feet. Once this is all done, you get 149468/9, or 16607 and 5/9 feet.
A particular species of bird can fly for 36.0 hours straight, covering a distance of 158 miles. At this rate, how many feet does the bird travel in 43.0 min
happy birthday zion...
Alkali metals are not reduced,why?
Alkali metals are not reduced because they are obtained by chemical reduction of their oxides.
How does a virus cause a disease?
A. They release toxins that poison your body's cell's
B. They use your body's cells to multiply
C. They break down your body's cells for food
D.They rob nutrients from your body's cells
B.
Explanation:
Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This can kill, damage, or change the cells and make you sick.
A simple sugar is composed of equal parts carbon and water, which gave rise to the general name of any sugar as a.
Answer:
Identify the disaccharide that fits each of the following descriptions: a. not a reducing sugar b. composed of two glucose units c. also called milk sugar d. hydrolysis gives glucose and fructose
observation when hydrogen burns in the air
Can anyone explain to me the octet rule in detail with examples my teacher didn't do the greatest job of making us understand.
exothermix reaction if you touched a flask where such a reaction was occurring, it would feel
It feel hot and feel warmer than before the reaction started.
The table shows the amount of radioactive element remaining in a sample over a period of time.
Radioactive Decay Rate
Amount of Radioactive Sample(grams)
45.0
31.8
22.5
15.9
11.3
Time(years)
0
11
22
33
44
Part 1: What is the half-life of the element? Explain how you determined this.
Part 2: How long would it take 308 g of the sample to decay to 4.8125 grams? Show your work or explain your answer
1. The half-life of the element is 22 years
2. The time taken for 308 g of the sample to decay to 4.8125 g is 132 years
Definition of half-lifeHalf-life is simply defined as the time taken for half of a material to decay.
1. How to determine the half-life Original amount (N₀) = 45 gHalf of the original amount = 45 / 2 = 22.5 gFrom the diagram, the time for 22.5 g is 22 years.
Thus, the half-life of the element is 22 years
2. How to determine the time i. Determination of the number of half-lives Original amount (N₀) = 308 gAmount remaining (N) = 4.8125 gNumber of half-lives (n) =?2ⁿ = N₀ / N
2ⁿ = 308 / 4.8125
2ⁿ = 64
2ⁿ = 2⁶
n = 6
ii. Determination of the time Number of half-lives (n) = 6Half-life (t½) = 22 yearsTime (t) =?t = n × t½
t = 6 × 22
t = 132 years
See attached photo for diagram
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A 25. 0-ml sample of 0. 150 m hydrocyanic acid is titrated with a 0. 150 m naoh solution. What is the ph beforeany base is added? the ka of hydrocyanic acid is 4. 9 × 10-10.
Answer:
stars,auroras,a neon sign
Explanation:
just did it
naming compounding
N2O
Answer:
Nitrogenous oxide/ nitrogen oxide
Explanation:
N2O is nitrogen oxide
Geologic time begins with a very long span called Precambrian Time. Precambrian Time ended about 544 million years ago. Scientists have organized geologic time into chunks. The chunks of time span different lengths. Using the model, organize the basic units of geologic time in order from longest to shortest.
Answer:
geologic time, the extensive interval of time occupied by the geologic history of Earth. Formal geologic time begins at the start of the Archean Eon (4.0 billion to 2.5 billion years ago) and continues to the present day.
Explanation:
Changes to Earth's Surface
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The image below shows part of a rounded ridge formation called an esker. This esker extends for several miles in an area that is
mostly flat plains. At one time, this ridge shape was occupied by a stream that flowed underneath a large glacier
Which of the following describes how the esker most likely formed?
ОА
As the glacier receded, the sediments in the stream built up to result in the formation
Св.
The glacier eventually melted and the water eroded the areas on both sides of the ridge
C. As the glacier receded, tectonic forces formed volcanoes, which spewed lava and formed igneous rock
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Answer: As the glacier receded, the sediments in the stream built up to result in the formation.
Explanation: study island
Explain why it is advantageous that water does not evaporate quickly on earth
PLEASE HELP!!
Answer:
When the humidity is 100 percent, the air is saturated with water. Air pressure also affects evaporation. If air pressure is high on the surface of a body of water, then the water will not evaporate easily. The pressure pushing down on the water makes it difficult for water to escape into the atmosphere as vapor.
Explanation:
It is advantageous that water does not evaporate quickly on Earth because the soil and Earth water will be conserved.
What is evaporation?Evaporation is a process by which a liquid is converted to the gaseous state.
The water on the Earth surface in liquid form is evaporated with an increase in heat.
However, it is advantageous that water does not evaporate quickly on Earth because the water on the Earth surface will be conserved i.e. available for future use.
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Which of the following types of energy is potential energy?
Answer:
if you would like a proper answer you need to give us the options otherwise we can't help you?
Explanation:
One reaction step in the conversion of ammonia to nitric acid involves converting NH3 to NO by the following reaction:
4 NH3(g) + 5 O2(g) --> 4 NO(g) + 6 H2O(g)
If 1.50 g of NH3 reacts with 2.75 g O2, then:
1. Which is the limiting reactant?
2. How many grams of NO and H2O form?
3. How many grams of the excess reactant remain after the limiting reactant is completely consumed?
the answer would be 2.75 x 4 nh3
Chemical weathering would be most effective ________.
Explanation:
Chemical weathering is most effective when water is present.
how to calculate formal charge on a lewis structure
Answer:
count how many electrons it 'owns'
The release of water vapor from sweat glands when we are not sweating is a process called:.
From what we know, we can confirm that the release of water vapor from sweat glands when we are not sweating is a process called insensible perspiration.
What is insensible perspiration?This is a process by which we emit water in the form of vapor from our skin. This process is not to be confused with normal sweating. This happens at a near-constant rate in the human body and is not perceivable. The loss of water through this method also helps the body to maintain its homeostasis levels.
Therefore, we can confirm that the release of water vapor from sweat glands when we are not sweating is a process called insensible perspiration.
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Which statement is true?
Ozone is always good because it is made from oxygen.
Ozone is good in the stratosphere and bad at ground level.
Ozone is bad no matter where it is.
Answer: the second one for sure HOPE IT HELPD HAVE A AWSOME DAY :))))))))
Explanation:
Determine the molarity of a solution with a volume of 435. mL and 0.550 mol of solute dissolved.
Answer:
M = 1.26
Explanation:
Molarity = mole of solution/liters of solution
435mL/1000 = .435L
Plugging in the numbers into the formula, we get:
Molarity = .550 mol/.435L = 1.26 M
What would be the answer could someone please help me?
Answer:
I think the answer could be A.
Explanation:
But i'm not sure.
Examine the snapshot of sedimentary layers shown here. Which statements accurately describe the relationship between these organisms? Select ALL that apply. A) Species B is more primitive than species C. B) Species A is more primitive than species B. C) Species C is more primitive than species B. D) Species B is more primitive than species A. E) All three species likely lived at the same time.
Answer:
The answer is: Species A is more primitive than species B.
Explanation:
Species A has worse genetics than all the other fishes.
what data can be used to make a model of food?
Answer: the density of the object / the mass it takes to stand up.
Explanation:
What would you ask the scientists that came up with the big bang theory?
Answer:
What is the name of the drug you were talking at the time of coming up with this theory please?
