In lonic bonding, atoms
share electrons
are connected by strong electrical forces
lose protons and form ions
stop moving completely

Answer:

I need this too but nobody knows how :(

Explanation:

The appetite effect cause one to believe is those who witness violence in the media see the world as threatening.

The appetite effect is used as a slang here, if someone is consuming violent media.

If someone is consuming violent media, then his appetite effect will be threatening from the world.

Thus, the correct option is B. Those who witness violence in the media see the world as threatening.

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Answer:

b

Explanation:

edge 2022

Answer:

Reading on left looks like 1.4

Explanation:

Answer: The wire is still copper and does not change by cutting it

Explanation:

Democritus postulated that all materials were composed of these tiny particles called as "atomos".

Daltons postulates are:.

1. All matter is made of very tiny particles called atoms.

2. Atoms is indivisible.

3. Atoms of a given element are identical in mass and chemical properties.

4. Atoms of different elements have different masses and chemical properties.

5. Atoms combine in the ratio of small whole numbers to form compounds.

6. The relative number and kinds of atoms are constant in a given compound.

Thus when copper wire is cut into the smallest  possible pieces, the atoms were intact as they are indivisible and all atoms have same mass and chemical properties.Thus the wire is still copper and does not change by cutting it

The volume = 309.04 ml

Given

Specific gravity=-1.28 and strength =24.7% by mass of H₂SO₄

mass 125g of ZnC0₃

Required

The volume of H₂SO₄ Solution

Solution

Reaction

ZnCO₃ + H₂SO₄ → ZnSO₄ + CO₂ + H₂O

mol of ZnCO₃(MW=125.4 g/mol) :

[tex]\tt mol=\dfrac{125}{125.4}=0.997[/tex]

From equation, mol ZnCO₃ : H₂SO₄= 1 : 1 so mol H₂SO₄=0.997

mass of H₂SO₄ (MW=98 g/mol) :

[tex]\tt mass=mol\times MW=0.997\times 98=97.706~g[/tex]

mass of solution :

[tex]\tt \dfrac{100}{24.7}\times 97.706=395.57~g[/tex]

Volume of solution :(density of solution=1.28 g/ml for the reference substance is water(density=1 g/ml)

[tex]\tt V=\dfrac{395.57}{1.28}=309.04~ml[/tex]

Answer:

2 molecules

Explanation:

I don't know how to explain it

The chemical formula of water is H₂O. Then 1 mole of water weighs 18 gram. Hence, 80 gram of water is equal to 4.4 mole.

Chemical element symbols, numbers, and occasionally other symbols like parentheses, dashes, brackets, commas, and plus and minus signs are used in a chemical formula to represent information about the chemical proportions of the atoms that make up a certain chemical compound or molecule.

It displays the constituent elements and how many atoms of each element are found in a single complex molecule. It also represents the compound's molecular weight.

Water has the chemical formula H₂O. Water weights 18 grams per mole. 80 grams of water are therefore equivalent to 4.4 moles.

Thus, The chemical formula of water is H₂O. 80 grams of H₂ contain 4.4 molecules of water.

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An atom is the fundamental unit of matter and it contains an equal number of protons and electrons in its nucleus which makes it electrically neutral. An ion however, is an atom containing an unequal number of protons and electrons which means it will either carry a net positive charge or negative charge depending on whether there are more electrons or protons.

Answer:

atoms are neutral or they have equal number of proton and electron but ions can be cation(positively charged) or anion(negatively charged) based on the number of electron the atom lose and gain respectively

Answer:

hydrocarbons

Explanation:

hope this is right.. if not sorry:)

Answer:

The amount of work required to raise the TV from point A to point B is equal to the amount of gravitational potential energy the TV gains from its height above the ground. This is generally true for any object ...

Answer:

M = 0.23 M

Explanation:

Given data:

Molarity of solution = ?

Mass of NH₄Br = 4.50 g

Volume of solution = 213 mL (213 mL× 1L /1000 mL = 0.213 L)

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Number of moles of NH₄Br:

Number of moles = mass/molar mass

Number of moles = 4.50 g / 97.94 g/mol

Number of moles = 0.05 mol

Molarity:

M = 0.05 mol/ 0.213 L

M = 0.23 M

Answer:

Electronegativity, symbol χ, measures the tendency of an atom to attract a shared pair of electrons (or electron density). An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity, the more an atom or a substituent group attracts electrons.

Answer:

I would guess that the MA of the screwdriver is 120N.

Explanation:

I think this because you are adding 30 and 90, since there are two forces being acted on the same place in the same direction.

#teamtrees #WAP (Water And Plant)

Answer:

At the cathode in an electrolytic cell, ions in the surrounding solution are reduced into atoms, which precipitate or plate out on to the solid cathode. The anode is where oxidation takes place, and the cathode is where reduction takes place.

Explanation:

Since positive ions pick up electrons at the negatively charged cathode, reduction takes place there.

The process of obtaining electrons or a decrease in an element's oxidation state in such a chemical reaction would be known as reduction, which is the movement of electrons among species. An increase in the number of electrons connected to a single or a collection of atoms is the result of a reduction chemical process.

The electron would be a subatomic particle with a negative one elementary charge electric charge. Due to their lack of components or substructure, electrons, which are part of the lepton particle family's first generation, have been typically regarded to be elementary particles.

In an electrolytic cell, the cathode is where ions in the neighboring medium could be converted into atoms, which then plate out or precipitated onto the solid cathode. Both oxidation and reduction occur at the anode but also cathode, respectively.

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Answer:

0.3hrs

Explanation:

Given parameters:

Average basal rate  = 15L/hr

Volume of oxygen  = 4.7L

Unknown:

Hours of oxygen use  = ?

Solution:

Now to solve this rate problem, we need to find the time;

 Hours of oxygen use  = [tex]\frac{volume of oxygen }{average basal rate}[/tex]  

 Hours of oxygen use  = [tex]\frac{4.7}{15}[/tex]   = 0.3hrs

Answer:

Nuclear energy produces radioactive waste

A major environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to human health for thousands of years

Explanation:

Answer:

a.) x = 5

Explanation:

Answer:

18.6 ( had to be 20 letter :/)

Explanation:

Answer:

it losses one neutrons that is hydrogen

Answer:

λ = 0.45×10⁻⁶ m

Explanation:

Given data:

Wavelength of blue light = ?

Frequency of blue light = 6.69×10¹⁴ s⁻¹

Solution:

Formula;

Speed of wave = wavelength × frequency

Speed of wave = 3.00×10⁸ m/s

by putting vales,

3.00×10⁸ m/s = λ × 6.69×10¹⁴ s⁻¹

λ = 3.00×10⁸ m/s / 6.69×10¹⁴ s⁻¹

λ = 0.45×10⁻⁶ m

The mass of sodium hydrogen carbonate : 10.5 g

Given

1.5 dm' of CO₂

1 mol gas= 24 L at RTP(25 °C, 1 atm)

Required

the mass of sodium hydrogen carbonate

Solution

Decomposition reaction of Sodium hydrogen carbonate :

2 NaHCO₃ (s) ⇒ Na₂ CO₃ (s) + H₂ O(g) + CO₂ (g)

mol CO₂ :

[tex]\tt mol=\dfrac{1.5}{24}=0.0625[/tex]

From the equation, mol ratio of NaHCO₃ : CO₂ (g) = 2 : 1, so mol NaHCO₃ :

[tex]\tt 2\times 0.0625=0.125[/tex]

Mass NaHCO₃(MW=23+1+12+3.16=84 g/mol) :

[tex]\tt mass=mol\times MW\\\\mass=0.125\times 84\\\\mass=10.5[/tex]

Answer:

[tex]\boxed {\boxed {\sf Almost \ all \ phosphates \ are \ insoluble}}[/tex]

Explanation:

For magnesium phosphate to make an aqueous solution, it must be soluble in water.

Let's check the solubility rules. There are many different lists and versions, but it should mention a rule about phosphates.

Magnesium phosphate is included in "all phosphates" so it is insoluble and can't become an aqueous solution.

Magnesium Phosphate (Mg₃(PO₄)₂) would not make an aqueous solution because it is insoluble in water.

A solution is a homogeneous mixture of one or more solutes dissolved in a solvent.

According to the solubility rule, all phosphates are insoluble in water except sodium and potassium phosphates and thus magnesium phosphate does not form an aqueous.

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base

This is the answer

Answer:

the answer is c or d

Explanation:

you can cross out e because it dont make any sense

b thats just data

a is the definition of law

Answer:

1 × 10⁸ He atoms

Explanation:

Step 1: Given data

Step 2: Convert "d" to meters

We will use the conversion factor 1 m = 10¹² pm.

1 × 10² pm × (1 m / 10¹² pm) = 1 × 10⁻¹⁰ m

Step 3: Convert "D" to meters

We will use the conversion factor 1 m = 100 cm.

1 cm × (1 m / 100 cm) = 0.01 m

Step 4: Calculate the number of atoms of He required

We will use the following expression.

D/d = 0.01 m / 1 × 10⁻¹⁰ m = 1 × 10⁸

Answer:

there u go

Explanation:

Answer:

False

Explanation:

Answer:

C. A human shivers when exposed to cold weather.

Explanation:

Homeostasis simply refers to balance, which is desirable in the context of an organism. In this problem, the only one that demonstrates this is a human shivers when exposed to cold weather. By using kinetic energy, heat is generated, maintaining a balance, so to speak.

(btw you may find it more helpful to post these types of problems under biology in the future.)

Explanation:

It's a triple bond for nitrogen,double bond for oxygen(just saying)