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marta [7]
3 years ago
8

Which stroke is this describing?

Chemistry
2 answers:
iren2701 [21]3 years ago
8 0

Answer:

C. Compression

Explanation:

"...are compressed."

Aleks [24]3 years ago
5 0

Answer:

Compression.

Explanation:

I just took the Engines Quiz and got it right. :)

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A metallurgical firm wishes to dispose of 1200 gallons of waste sulfuric acid whose molarity is 1.05 M. Before disposal, it will
Reil [10]

Answer:

The balanced chemical equation for this process:

H_2SO_4(aq)+Ca(OH)_2(s)\rightarrow 2H_2O(l)+CaSO_4(aq)

$194.51 is the cost that the firm will incur from this use of slaked lime.

Explanation:

The balanced chemical equation for this process

H_2SO_4(aq)+Ca(OH)_2(s)\rightarrow 2H_2O(l)+CaSO_4(aq)

Moles of sulfuric acid = n

Volume of sulfuric acid disposed = V = 1200 gallons = 3.785 × 1200 L = 4,542 L

1 gallon = 3.785 Liter

Morality of the sulfuric acid = M = 1.05 m

Molarity(M)=\frac{n}{V(L)}

n=m\times V=1.05 M\times 4,542 L=4,769.1 mol

According to reaction, 1 mol of sulfuric acid reacts with 1 mole of calcium hydroxide.Then 4,769.1 moles of sulfuric acid will recat with ;

\frac{1}{1}\times 4,769.1 mol=4,769.1 mol of calcium hydroxide

Mass of 4,769.1 moles of calcium hydroxide:

4,769.1 mol  74 g/mol = 352,913.4 g

= \frac{352,913.4 }{453.6} pounds =778.03 pounds

(1 pound = 453.6 grams)

Cost of 1 pound of slaked lime  = $0.25

Cost of 778.03 pounds of slaked lime  = $0.25 × 778.03 = $194.51

$194.51 is the cost that the firm will incur from this use of slaked lime.

3 0
3 years ago
An ecosystem includes the biotic and abiotic factors<br><br>true<br><br>false​
MariettaO [177]
True.

Every environment and ecosystem will include these factors.
8 0
2 years ago
Read 2 more answers
How many iron atoms are in 0.32 mol of Fe2031? 3.9x 1023 jron atoms O 3.9 iron atoms O 6.02 x 1023 iron atoms 1.9 x 1023 iron at
Gennadij [26K]

Answer: 3.9\times 10^{23} iron atoms

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

1 molecule of [tex]Fe_2O_3 contains= 2 atoms of iron

1 mole of [tex]Fe_2O_3 contains=2\times 6.023\times 10^{23}=12.05\times 10^{23}  atoms of iron

thus 0.32 moles of Fe_2O_3 contains=\frac{12.05\times 10^{23}}{1}\times 0.32=3.9\times 10^{23}  atoms  of iron

Thus the sample would have 3.9\times 10^{23} iron atoms.

8 0
3 years ago
Matter with indefinite shape and volume"
ladessa [460]
The answer is Gas i would say
7 0
2 years ago
Why are prefixes not needed in naming ionic compounds?
Tasya [4]

Answer:

its A

Explanation:

6 0
2 years ago
Read 2 more answers
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