3 years ago

_____ is a measure of the average kinetic energy of a gas. Density Enthalpy Pressure Temperature

Chemistry

1 answer:

Fiesta28 [93]3 years ago

8 0

Answer:

Temperature

Explanation:

Temperature is a measure of the average kinetic energy of the particles in a sample of a gas.
Kinetic energy is the energy possessed by an object because of its motion. As an object absorbs heat the particles move faster so the average kinetic energy and therefore the temperature increases.
When the temperature of a body or an object is increased and hence the heat, there is more movement or vibration of particles which translates to more kinetic energy.

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Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas. The balanced equation for this is CaH2 + 2H2O ---&

Marta_Voda [28]

I believe the answer is 47.25g
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3 years ago

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What can you say about the amount of electrons found in the second ring

Amiraneli [1.4K]

Answer:

The second ring in an atom can only hold up to 8 electrons.

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3 years ago

Most metals allow electricity to flow freely through them. So, most metals are.....

algol [13]

Answer:

Conductors

Explanation:

Metals that are conductors let electric currents flow freely. Insulators have a resistance of a charge to flow through them.

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3 years ago

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46.6 grams of mercury II sulfate (HgSO4) reacts with an excess of sodium Chloride (NaCl). How many grams of mercury II chloride

slega [8]

Answer:

$m_{HgCl_2}=42.7gHgCl_2$

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$HgSO_4+2NaCl\rightarrow HgCl_2+Na_2SO_4$

In such a way, the mercury II sulfate (molar mass 296.65g/mol) is in a 1:1 molar ratio with the mercury II chloride (molar mass 271.52g/mol), for that reason the stoichiometry to find mass in grams of mercury II chloride turns out:

$m_{HgCl_2}=46.6gHgSO_4*\frac{1molHgSO_4}{296.65 gHgSO_4}*\frac{1molHgCl_2}{1molHgSO_4} *\frac{271.52gHgCl_2}{1molHgCl_2} \\\\m_{HgCl_2}=42.7gHgCl_2$

Best regards.

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2 years ago

How many grams of calcium chloride are dissolved in 5.65 liters of a 0.11 m solution of calcium choride?

Julli [10]

C = 0.11 mol
V = 5.65 L
n = ???

n = C*V
n = 0.11 * 5.65
n = 0.622 mols

1 mol of CaCl2 = 40 + 2*35.5 = 111 grams
0.622 mol = x

x = 111 * 0.622
x = 69.0 grams CaCl2

4 0

3 years ago