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Debora [2.8K]
3 years ago
9

When did these geologic processes occur?

Chemistry
1 answer:
o-na [289]3 years ago
6 0

Time Scales. As discussed before, the Solar System began to form about 6 billion years ago and the Earth and other planets about 4.5 billion years ago. Geologic processes have operated on the Earth ever since.

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How many moles are in 153 grams of O2?
Tatiana [17]

Answer:

4.78 mol O2

Explanation:

Grams --> moles

Grams/molar mass = moles

153 g O2 / 32 g/mol O2 = 4.78125 (significant figures so round it up; the grams has 3 significant figures, so round it up) 4.78 mol O2

8 0
3 years ago
True or false?<br><br> When sodium and chlorine combine and bond, a molecule is formed.
CaHeK987 [17]

When Sodium and Chlorine come together they transfer an electron.

- Source: google


Hopefully this was clear and you understood!

3 0
3 years ago
Calculate the pH of lemon juice to three significant figures, with a hydrogen ion concentration of
Airida [17]

Answer:

pH = - log [2.12 x 10^-3]

what is the log of 2.22 x 10^-3]

Take the opposite of that,

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Explanation:

3 0
3 years ago
What is the biome of danmarkshavn of Greenland?
earnstyle [38]

A picture. hope this helps at least a little.

3 0
2 years ago
If an atom has 16 protons, 14 neutrons, and 17 electrons, what is the atom's electrical charge?
daser333 [38]

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4 0
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