How can carbon dating be used to study the history of the earth?

1 answer:

7 0

The amount of carbon in fossils and artifacts decreases when the get older, so you can find out how old an object or fossil is by finding out how much carbon is in it.

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Name the reactants and products of Na3PO4 + 3KOHàNaOH + K3PO4 (Question 2 and 3)

Leona [35]

Answer:

Question 2: Na3PO4, KOH; Question 3: Na3PO4, KOH

Explanation:

Question 2

The reactants in a chemical equation are the species on the left side of the reaction arrow.

Thus the reactants are Na3PO4, KOH (sodium phosphate and potassium hydroxide).

Question 3.

The products in a chemical equation are the species on the right side of the reaction arrow.

Thus the products are NaOH, K3PO4 (sodium hydroxide and potassium phosphate).

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3 years ago

A Lewis acid is a substance that can

katrin2010 [14]

Accept a pair of nonbonding electrons,a Lewis acid is an electron-pair acceptor. A Lewis base is any substance, such as the OH- ion, that can donate a pair of nonbonding electrons. A Lewis base is therefore an electron-pair donor.

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3 years ago

What is the asteroid's name? a. Bubbles b. Carl c. Bennu d. Rex

castortr0y [4]

Answer:

I would say Bennu

Explanation:

Hope this was correct! Let me know if i need to correct it please =w=

8 0

3 years ago

Read 2 more answers

Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up to obtain 73.0 g of gold?

Scorpion4ik [409]

You would have to dig up 261 g of sylvanite.

Mass of sylvanite = 73.0 g Au × (100 g sylvanite/28.0 g Au) = 261 g sylvanite.

3 0

3 years ago

Please answer number12

densk [106]

Hydrogen maybe but I don’t know for sure

7 0

3 years ago