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anastassius [24]

3 years ago

13

What is the difference between a chemical formula and a molecular formula.

1 answer:

polet [3.4K]3 years ago

3 0

Molecular formula indicates the simple number of each type of atom in molecule with no information on structure. Chemical formula is a way of presenting information about the chemical propagation of atom that constitute a particular chemical compound or molecule, using chemical element symbols.

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Which integration phase moves the recovered person to the continental united states

nydimaria [60]

Phase 3 is the integration phrase

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3 years ago

The lowest energy state of an atom is its

erica [24]

Answer:

Principle quantum number.

Explanation:

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3 years ago

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How many grams of Carbon are in sample of 400 grams of Co2?

RoseWind [281]

Answer:

Mass of carbon = 109.1 g

Explanation:

Given data:

Mass of carbondioxide = 400 g

Mass of carbon = ?

Solution:

Molar mass of carbon = 12 g/mol

Molar mass of CO₂ = 44 g/mol

Mass of carbon in 400g of CO₂:

Mass of carbon = 12 g/mol/44 g/mol × 400 g

Mass of carbon = 109.1 g

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3 years ago

Example of a neutral mutation?

Norma-Jean [14]

The answer is D

Explanation: A RED FLOWER WITH ONE PART COLORED YELLOW

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3 years ago

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What is the volume, in liters, of 6.8 mol of Kr gas at STP?

Virty [35]

Answer:

$\boxed {\boxed {\sf D. \ 152 \ L}}$

Explanation:

Any gas at standard temperature and pressure (STP) has a volume of 22.4 liters per mole or 22.4 L/mol. We can create a proportion with this value.

$\frac {22.4 \ L \ Kr}{1 \ mol \ Kr}$

Multiply both sides of the equation by 6.8 moles of krypton.

$6.8 \ mol \ Kr *\frac {22.4 \ L \ Kr}{1 \ mol \ Kr}$

The units of moles of krypton will cancel.

$6.8 *\frac {22.4 \ L \ Kr}{1 }$

The denominator of 1 can be ignored, so this becomes a simple multiplication problem.

$68 * 22.4 \ L \ Kr$

$152.32 \ L \ Kr$

If we round to the nearest whole number, the 3 in the tenths place tells us to leave the 2 in the ones place.

$152 \ L \ Kr$

6.8 moles of krypton gas at standard temperature and pressure is equal to <u>152 liters</u>.

6 0

3 years ago