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GalinKa [24]
3 years ago
11

When ethanol is burned, it's converted into carbon dioxide and water. Does the ethanol undergo a physical change or a chemical c

hange? Explain?
Chemistry
1 answer:
NARA [144]3 years ago
3 0
It's a chemical change because ethanol is converted into other substances.
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Find the mass of 250.0 mL of benzene. The density of benzene is 0.90 g/mL.
guapka [62]

Answer:

<h2>225 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 0.9 × 250

We have the final answer as

<h3>225 g</h3>

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2 years ago
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B) they are the same

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Silver nitrate, AgNO3 reacts with sodium
ratelena [41]

Answer: Ag^+ (aq) + NO3^-(aq) + Na^+ (aq) +Cl^- (aq) ⇒ AgCl(s) + NaNO3(aq)

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How many moles of atoms are there in 8.814 ×10^23 atoms Ne?
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6 0
3 years ago
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When a teacher dilutes 50 mL of 2.0 M NaOH to 0.50 M, what volume of NaOH results?
JulijaS [17]

Answer:

= 200 mL

Explanation:

Using the dilution formula;

M1V1 = M2V2 ;

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M1 = 2.0 M

V1 = 50 mL

M2 = 0.50 M

V2 = ?

V2 = M1V1/M2

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Therefore, the volume after dilution will be, 200 mL

6 0
3 years ago
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