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Oksana_A [137]
2 years ago
5

Please help with this question.

Chemistry
1 answer:
marysya [2.9K]2 years ago
4 0

Answer:

It is C.

Explanation:

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If you only wanted to increase the particle motion of a gas without increasing any of its other properties, which would the most
andrey2020 [161]

Answer:

c

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5 0
2 years ago
6.285×10^3 mg = _____? _____ kg
TiliK225 [7]
One kilogram is equal to one thousand grams. Further, one gram is equal to 1000 mg. The conversion is as shown below,
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The numerical value of the operation above is 0.006285 kg. 
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3 years ago
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Write a balanced equation for the reaction<br>between ammonia and sulfuric acid?​
Slav-nsk [51]

Balanced equation for the reaction between ammonia and sulphuric acid is:

Explanation:

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2 years ago
Calculate the number of moles of caco3 (calcium carbonate, or limestone) in a 20.0g sample of this substance
Brrunno [24]
First calculate for the molar mass of the given formula unit, CaCO₃. This can be done by adding up the product when the number of atom is multiplied to its individual molar mass as shown below.

     molar mass of CaCO₃ = (1 mol Ca)(40 g Ca/mol Ca) + (1 mol C)(12 g of C/1 mol of C) + (3 mols of O)(16 g O/1 mol O) = 100 g/mol of CaCO₃

Then, divide the given amount of substance by the calculated molar mass.
            number of moles = (20 g)(1 mol of CaCO₃/100 g)
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<em>Answer: 0.2 moles</em>
6 0
3 years ago
What is the formula of the ionic compound composed of element X^2+ and element Y^-3?​
mihalych1998 [28]

Answer: X3Y2

Explanation:

The formula is

X has a valency of 2

Y has a valency of 3

So, we interchange the valencies

Therefore, the formula is

X3Y2

3 0
3 years ago
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