3 years ago

Which of these is a chemical property of a substance?

1 answer:

dlinn [17]3 years ago

8 0

Answer:

Reactivity

Explanation:

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Hitman42 [59]

The population tha increases the amount of soil nutrients available to plants is D) bees that help spread pollen from one plant to another.

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rjkz [21]

Probably Fresh vegetables, it can rot out, that’d be my guess, it’s not canned

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Volgvan

Moles = mass / molar mass
molar mass of O2 is 32
therefore moles = 72/32
= 2.25 moles

4 0

3 years ago

____ [38]

Answer:

3441.6 grams.

Explanation:

2 O₃ → 3 O₂

First we convert 71.7 moles of ozone (O₃) into moles of oxygen gas (O₂), using the stoichiometric coefficients of the reation:

71.7 mol O₃ * $\frac{3molO_2}{2molO_3}$ = 107.55 mol O₂

Then we convert 107.55 moles of O₂ into grams, using the molar mass of O₂:

107.55 mol * 32 g/mol = 3441.6 g

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3 years ago

yulyashka [42]

Answer:

it form a negative ion because the no. of negative charges exceeds that of the positive charges

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3 years ago