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Juliette [100K]
3 years ago
6

You find a geode while hiking. You place it on a scale and find it has a mass of 62 g.

Chemistry
1 answer:
dexar [7]3 years ago
5 0

Answer:

B

Explanation:

I think that's it.. hope I helped you

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What other elements does iron commonly bonds with.
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☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

it can bond with oxygen to form rust or iron oxide. and it can bond with carbon to form steel.

Here's another one: Iron bonds with lots of things: Oxygen (Ferric Oxide = rust),Chlorine (Ferric Chloride]), Fluorine, ... , even other Iron (in aMetallic Bond or crystal).

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If i rub a balloon on a piece of paper then hold it against my head my hair will stand up why is that?
Alex_Xolod [135]
Static electricity is what occurs.
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What did the scientists have to consider before releasing the dragonflies into the wild? Why?
pentagon [3]
Maybe they had to consider the habitat to make sure the habitat they were releasing the dragonflies into would be appropriate for the dragonflies.
3 0
3 years ago
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Doctors have fought infections with penicillin for over 50 years. Recently, penicillin has not worked as well as before. Which o
Lilit [14]

C. "A" mentions that the drug killed all of the bacteria that are resistant to the drug, and that doesn't make any sense. "B" claims that all bacteria are resistant to the drug. This is not true. "D" mentions that bacteria eat the drug, which doesn't happen.

5 0
2 years ago
Given a balanced chemical equation below: 3Cu(s) + 2H3PO4 --- > Cu3(PO4)2 + 3H2 How many moles of copper are needed to react
Harman [31]

Answer:

7.5 moles

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

3Cu + 2H3PO4 —> Cu3(PO4)2 + 3H2

From the balanced equation above,

3 moles of Cu reacted with 2 moles of H3PO4.

Therefore, Xmol of Cu will react with 5 moles of H3PO4 i.e

Xmol of Cu = (3 x 5)/2

Xmol of Cu = 7.5 moles

Therefore, 7.5 moles of Cu are needed to react with 5 moles of H3PO4.

4 0
3 years ago
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