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kolezko [41]
3 years ago
10

MARK BRAINEIST

Chemistry
2 answers:
GarryVolchara [31]3 years ago
8 0
You will used a convex mirror
MArishka [77]3 years ago
6 0

Answer:

concave mirror

Explanation:

brainliest pls

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Write a balanced equation for the neutralization of the following.
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Suppose you used excess sulfuric acid in all the flasks. How many moles of CO2would be released in flask 7? The molar mass of so
taurus [48]

Answer:

Number of produced moles of carbondioxide is 0.113 mol.

Explanation:

Excess of sulphuric acid is present.And the sodium carbonate is completely consumed.

Molar mass of sodium carbonate = 105.99g/mol

Given mass of sodium carbonate =12 g/mol

Number\,of\,moles=\frac{Given\,mass}{Molar\,mass}

Number\,of\,moles=\frac{12}{105.99}=0.113mol

one mole of sodium carbonate produce one mole of carbondioxide.

0.113 mole of sodium carbonate produce 0.113 mole of carbondioxide.

Mass\,of\,CO_{2}produced=Moles\times Molar\,mass

=0.113\times 44g/mol=4.98g

Therefore, 0.113 mol of carbondioxide produced in flask 7.

6 0
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What type of changes indicate a chemical change?
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A few examples of changes in chemical change are, a change in the color of the chemical, change in the energy or temperature, and lastly change of odor.

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