2 years ago

All molecules are compounds True or false

1 answer:

4 0

False (All compounds are molecules, but not all molecules are compounds. That is because a molecule can be made up of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule. However, all compounds are made up of two or more different types of atoms.)

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In the process of eating, what kind of energy in food is transformed into heat energy by your body?

Rama09 [41]

Answer:The chemical energy

Explanation:because The chemical energy in the food you eat is changed into another kind of chemical energy that your body can use. Your body then uses that energy to give you the kinetic energy that you use in everything you do.

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2 years ago

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We do we mean when we say a substance is pure

tiny-mole [99]

Answer:

ot means that contains only one kind of matter.

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2 years ago

A barometer displaying a reading of 29.8 inches of mercury would be equivalent to ___________ millibars of atmospheric pressure

Elis [28]

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2 years ago

There are 3.20 x 10^22 atoms of copper in the outer shell of pennies. How many grams of

Vesnalui [34]

Convert to moles first and then use the molar mass of copper to convert to grams

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3 years ago

Calculate the molarity of glucose in a solution that which contains 35 g of glucose in 0.16 kg of phenol

sleet_krkn [62]

C(Molarity) = n of solute/V of solution (mol/L)

glucose(C6H12O6) = 180g/mol
glucose 35g = 35g/(180g/mol) = 0.1944mol

We need density of solution here, and I assume it as density of phenol, 1.07g/mL. (I don't know why the question doesn't contain it)

phenol 0.16kg = 0.16kg/(1.07kg/L) = 0.1495L

0.1944mol/0.1495L = 1.300M(mol/L)

5 0

2 years ago