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3 years ago

Describe the motion of molecules in an ice cube and in a radiator in winter.

Chemistry

1 answer:

MissTica3 years ago

6 0

Answer:

Molecules in an ice cube have lower kinetic energy than molecules in a radiator.

Explanation:

Molecules in an ice cube move more slowly than molecules in a radiator. They collide with less force than molecules in a radiator.

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The specific gravity of water is 1.0. True False

Zielflug [23.3K]

The specific gravity of water is 1.0 True

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3 years ago

How many moles of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas?

tino4ka555 [31]

Taking into account the reaction stoichiometry, 340.0 moles of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

CO₂ + 4 H₄ → CH₄ + 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

CO₂: 1 mole
H₄: 4 moles
CH₄: 1 mole
H₂O: 2 moles

<h3>Moles of CH₄ formed</h3>

The following rule of three can be applied: if by reaction stoichiometry 1 mole of CO₂ form 4 moles of CH₄, 85.1 moles of CO₂ form how many moles of CH₄?

$moles of CH_{4} =\frac{85.1 moles of CO_{2}x4 moles of CH_{4} }{1 moles of CO_{2}}$

<u><em>moles of CH₄= 340.4 moles</em></u>

Then, 340.0 moles of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

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6 0

2 years ago

What is the morality of a solution witch composed of 200.12 g HCI in 5.2 L solution?

Dovator [93]

Answer:

1.06 M

Explanation:

200.12/36.46= ans./5.2

grams/atomic mass = ans./volume (L)

5 0

3 years ago

The electron pair in a C-F bond could be considered Question 3 options: closer to C because carbon has a larger radius and thus

Leokris [45]

Answer:

closer to F because fluorine has a higher electronegativity than carbon

Explanation:

Electronegativity refers to the ability of an atom in a bonding situation to draw the shared electrons of the bond closer to itself.

Electronegativity increases across the period and decreases down the group. A highly electronegative atom draws the shared electron pair of a bond towards itself.

When two atoms are bonded together, the electron pair is always drawn closer to the atom that has a higher electronegativity.

Hence, the electron pair in a C-F bond could be considered closer to F because fluorine has a higher electronegativity than carbon.

4 0

3 years ago

Name a compound containing oxygen and selenium.

fomenos

Answer:

Selenium Dioxide: Se $O_{2}$

Explanation:

This is a compound that contains both Selenium and Oxygen.

6 0

3 years ago