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Ierofanga [76]
3 years ago
10

Grinding quartz crystals down to produce sand is an example of a

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
5 0
Grinding quartz crystals down to produce sand is an example of a?

-physical change
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Which of the following is not an organic compound?<br> OC6H14<br> O CO₂<br> OCH4<br> C12H22011
lana66690 [7]

Answer:

Co2

Explanation

An organic compound includes Carbon and Hydrogen both bonded

4 0
2 years ago
At 600. K how many moles of gas are in a 1.00 L cylinder at atmospheric pressure?
Anton [14]

Answer:

0.02moles

Explanation:

To answer this question, the general gas law equation is used. The General gas law is:

Pv = nRT

Where; P = standard atmospheric pressure (1 atm)

V = volume (L)

n = number of moles

R = Gas law constant

T = Temperature

For this question; volume = 1.00L, atmospheric pressure (P) = 1 atm, R = 0.0821 L-atm / mol K, T = 600K, n = ?

Therefore; Pv = nRT

n = PV/RT

n = 1 × 1/ 0.0821 × 600

n = 1/49.26

n = 0.0203moles

Hence, there are 0.02 moles of gas.

8 0
3 years ago
3. Analizando la siguiente reacción química de formación del agua:
Leya [2.2K]

Answer:

3. Analizando la siguiente reacción química de formación del agua:

2 H2 (g) + O2 (g)  2 H2O (l)

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b) Determine si se consumen la totalidad de dichos reactivos. Demuéstrelo con los cálculos estequiométricos correspondientes.

5 0
3 years ago
Which of the following elements has the highest electronegativity?
zvonat [6]
The answer of this question is Oxygen
8 0
3 years ago
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The sun provides the main source of energy for many of the phenomena that occur on Earth.
Brrunno [24]
<h3>Answer:</h3>

True

The sun is the primary source of energy

7 0
3 years ago
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