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loris [4]
3 years ago
9

Help me this, I only have 10 minutes to answer!!!!

Chemistry
1 answer:
Nana76 [90]3 years ago
3 0

Answer:sedimentary

Explanation:

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The answer is b.low frequency,high energy
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4 years ago
Câu 4. Khối lượng H2SO4 trong 150 gam dung dịch H2SO4 14% là
Hitman42 [59]

Answer:

21 gam

Explanation:

mH2SO4 = mddH2SO4.C% = 150. 14% = 21g

8 0
3 years ago
Given the balanced equation 2C4H10 + 13O2 → 8CO2 + 10H2O, how many moles of CO2 are produced when 14.9g of O2 are used?
Anna [14]

Answer: The number of moles of CO_2 produced are, 0.287 moles.

Explanation : Given,

Mass of O_2 = 14.9 g

Molar mass of O_2 = 32 g/mol

First we have to calculate the moles of O_2

\text{Moles of }O_2=\frac{\text{Given mass }O_2}{\text{Molar mass }O_2}

\text{Moles of }O_2=\frac{14.9g}{32g/mol}=0.466mol

Now we have to calculate the moles of CO_2

The balanced chemical equation is:

2C_4H_{10}+13O_2\rightarrow 10H_2O+8CO_2

From the reaction, we conclude that

As, 13 mole of O_2 react to give 8 moles of CO_2

So, 0.466 mole of O_2 react to give \frac{8}{13}\times 0.466=0.287 mole of CO_2

Therefore, the number of moles of CO_2 produced are, 0.287 moles.

3 0
3 years ago
There are a few different shapes of airplanes being considered in the design of a new airplane. One design would add protrusions
Ede4ka [16]

C. The design would not be cost-efficient; the plane would require more fuel due to increased thrust from higher drag.

7 0
4 years ago
How many grams of Cl are in 495 g of CaCl2?
ICE Princess25 [194]
Refer to picture attached for solution

5 0
3 years ago
Read 2 more answers
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