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nydimaria [60]
2 years ago
12

Convert 3.9 kcal into calories.

Chemistry
1 answer:
timama [110]2 years ago
8 0

3.9 ~\text{kcal} = 3.9 \times 1000 ~ \text{cal} = 3900~ \text{cal.}

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Complete the sentence.
Leno4ka [110]

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Explanation:

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3 years ago
State Modern periodic Table​
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3 years ago
What do you add to a base to weaken it
lesantik [10]

Answer:

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Explanation:

6 0
3 years ago
How many mL of 3.0M HCl are needed to make 300.0 mL of a 0.10M HCl?
nalin [4]

Answer:

V₁  = 10 mL

Explanation:

Given data:

Initial volume of HCl = ?

Initial molarity = 3.0 M

Final molarity = 0.10 M

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Solution:

Formula:

M₁V₁  =  M₂V₂

M₁ = Initial molarity

V₁  =  Initial volume of HCl

M₂ =Final molarity

V₂ = Final volume

Now we will put the values.

3.0 M ×V₁  =  0.10 M×300.0 mL

3.0 M ×V₁  = 30 M.mL

V₁  = 30 M.mL /3.0 M

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3 0
3 years ago
NEED HELP ASAP!!! What is the density of each of the following gases at STP? Show your work.
BaLLatris [955]

Answer:

A. 1.63g/dm^3 (3 s.f.)

B. 0.833g/dm^3 (3 s.f.)

C. 1.92g/dm^3 (3 s.f.)

Explanation:

Please see attached picture for full solution.

3 0
3 years ago
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