3 years ago

Exploring melting outside,inside room an in fridge????

Chemistry

1 answer:

den301095 [7]3 years ago

5 0

Answer:

yes

Explanation:

that is all due to temperature

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Do electric or magnetic fields affect the x-rays?

Levart [38]

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In a percentage composition investigation a compound was decomposed into its elements: 20.0 g of calcium, 6.0 g of carbon, and 2

inysia [295]

The percentage composition of this compound : 40%Ca, 12%C and 48%O

<h3>Further explanation</h3>

Given

20.0 g of calcium,

6.0 g of carbon,

and 24.0 g of oxygen.

Required

The percentage composition

Solution

Total mass of compound :

=mass calcium + mass carbon + mass oxygen

=20 g + 6 g + 24 g

=50 g

Percentage composition :

Ca-calcium

$\tt \dfrac{20}{50}\times 100\%=40\%$

C-carbon

$\tt \dfrac{6}{50}\times 100\%=12\%$

O-oxygen

$\tt \dfrac{24}{50}\times 100\%=48\%$

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2 years ago

What is the mass of 3.50 moles of Ba(NO2)2?

Fofino [41]

Answer:

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Explanation:

The molar mass of Barium nitrite is 229.34 g/mol, so 3.5 moles of it will have a mass of ...

3.5 mol × 229.34 g/mol = 802.69 g

8 0

3 years ago

You may have heard the saying, “You are what you eat.” Use information learned in this section to explain what this statement me

Ilia_Sergeevich [38]

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3 years ago

I just need the right answer plz

astraxan [27]

Answer:

-0.5

Explanation:

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