3 years ago

If the atomic number for oxygen is 8, how

Chemistry

1 answer:

hjlf3 years ago

4 0

8 protons are in the nucleus

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True or False: Photosynthesis can happen anytime, regardless of the amount of reactants present or the presence of sunlight.

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The answer is false .

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When lithium reacts with bromine to form the compound LiBr, each lithium atom:

yKpoI14uk [10]

(3) loses one electron and becomes positively charged
Lithium has one valence electron and Bromine has seven. Therefore Lithium will give up its one to Bromine for both to have an octet

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Which island is older Kauai or Maui

evablogger [386]

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Kauai

Explanation:

I look this up when I am doing math

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A chemistry student needs 10.00 g of isopropenylbenzene for an experiment. He has available 120. g of a 42.7% w/w solution of is

Vanyuwa [196]

<u>Answer:</u> The mass of solution that the chemistry student should use is 23.4 grams

<u>Explanation:</u>

We are given:

Available mass of isopropenylbenzene = 120. g

Amount of isopropenylbenzene needed by chemistry student = 10.00 g

42.7 % (w/w) solution of isopropenylbenzene.

This means that 42.7 grams of isopropenylbenzene is present in 100 grams of solution.

To calculate the mass of solution for given needed of isopropenylbenzene, we apply unitary method:

For 42.7 grams of isopropenylbenzene, the amount of solution needed is 100 grams

So, for 10.00 grams of isopropenylbenzene, the amount of solution needed will be = $\frac{100}{42.7}\times 10=23.4g$

Hence, the mass of solution that the chemistry student should use is 23.4 grams

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3 years ago

Do atoms or molecules in solids have no motion

Svet_ta [14]

Answer:

Well yes and no

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The molecules move, but in place. They are constantly vibrating, rotating and so forth.

Atoms do not move at all

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