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3 years ago

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Chemistry

2 answers:

steposvetlana [31]3 years ago

8 0

Answer:

Explanation:

valkas [14]3 years ago

5 0

Answer:

Explanation:

"It means of solving a problem or dealing with a difficult situation."

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Balance the equation for <br> __Ca+__Pb(NO3)2—__Pb+__Ca(NO3)2

svp [43]

Answer:

Ca + Pb(NO3)2 → Pb + Ca(NO3)2

Explanation:

This is an oxidation-reduction (redox) reaction:

PbII + 2 e- → Pb0

(reduction)

Ca0 - 2 e- → CaII

(oxidation)

Pb(NO3)2 is an oxidizing agent, Ca is a reducing agent.

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2 years ago

What do these organic compounds have in common?

Fed [463]

They contain both carbon and hydrogen :)

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3 years ago

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a 14.24 gram rock is dropped into a graduated cylinder containing 5.7 mL of water the final volume reading on The Graduate after

Verizon [17]

The volume of water in the graduated cylinder is 5.7 mL, volume increases to the value 17.3 mL when a 14.24 g of rock is dropped into it.

The increase in volume is due to the added volume of rock. Thus, volume of rock can be calculated by subtracting initial volume from the final volume as follows:

$V_{rock}=V_{final}-V_{initial}$

On putting the values,

$V_{rock}=17.3 mL-5.7 mL=11.6 mL$

For correct significant figures, volume should be in 2 significant figures.

Therefore, volume of rock will be 12 mL.

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3 years ago

I need help with this

masha68 [24]

Answer is —-7373/63)3

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2 years ago

What is the strong nuclear force

Arturiano [62]

Answer:

A fundamental interaction of nature that acts between subatomic particles of matter. The strong force binds quarks together in clusters to make more-familiar subatomic particles, such as protons and neutrons. Something like that.

Explanation:

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2 years ago