In a rate law, the rate constant, k, depends on which condition

1 answer:

4 0

In a rate law, the rate constant, k, depends only on the temperature.

If the temperature is constant, the rate constant is a constant.

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Jennifer is learning the parts of the cell and knows that there must be a structure responsible for maintaining the homeostasis

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The answer will be the cell membrane

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An unknown metal sample has a mass : of 11.29. and a volume of 2 cm3. What is the : density of the unknown metal?

tatuchka [14]

Answer:

$\boxed{\sf Density \ of \ the \ unknown \ metal = 5.645 \ g/cm^3}$

Given:

Mass = 11.29 g

Volume = 2 cm³

To Find:

Density of unknown metal

Explanation:

Formula:

$\boxed{ \bold{Density = \frac{Mass}{Volume}}}$

Substituting value of mass & volume in the formula:

$\sf \implies Density = \frac{11.29}{2} \\ \\ \sf \implies Density = 5.645 \: g/cm^3$

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Which statement is true of the particles that make up a substance?

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Answer: particle in gas have more energy than the particles in a liquid

<h3 />

Explanation: this is because the amount of energy is directly proportional to how random the system is. gaseous molecules are in a more constant random motion than the liquid molecules

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How many hydrogen atoms are missing in ethane compared to ethane

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Isomer types. The connectivity and molecular motion due to bond rotations within a molecule can result in atoms that are considered to be equivalent or non-equivalent types. For example, the six hydrogen atoms in ethane are considered to be chemically equivalent

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3 years ago

Magnesium Oxide decomposes to produce 3.54 grams of oxygen gas. How many grams of magnesium oxide decomposed?

sukhopar [10]

<h2>Let us solve for it </h2>

Explanation:

Magnesium oxide

It is MgO
Its molecular mass is : 24 +16=40 g
When MgO decomposes it forms = 3.54 g of oxygen gas
when 40 g of MgO decomposes it forms = 16g of oxygen
or we can say that :
16g of oxygen is produced when 40 g of MgO is decomposed .
1g of oxygen will be formed from =40/16g of MgO
3.54 g of oxygen will be formed = 40/16 x 3.54 =8.85g of MgO

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3 years ago