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Sergio [31]
4 years ago
10

A chemical reaction in which compounds break up into simpler constituents is a _______ reaction.

Chemistry
2 answers:
sweet [91]4 years ago
7 0
The awnser to ur question is B
Zanzabum4 years ago
5 0

B. Decomposition, I remember reading this in my student workbook. Hope this helped!

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How do you calculate the volume of a gas at STP given the number of moles of gas present
S_A_V [24]
The Ideal Gas Law states that pressure (P) × volume (V) is equal to the # of moles (n) of the gas × a constant (R) × temperature (T), such that the equation is:
PV = nRT
At standard temp and pressure (STP), the T is 0°C or 273.15K, the P is 1 atm or 760 torr, and the R constant is 0.0821. Therefore the equation, solved for V becomes: V = nRT/P, or V = n(0.0821)(273)/1, so that it reduces to V = 22.4 Liters, when n = 1 mole.
So the V of any gas at STP is 22.4 L / mole
8 0
4 years ago
Methane is a colorless, odorless gas. it oxidizes in air and has a boiling point of -161°
Katyanochek1 [597]

Answer: oxidizes in air

Explanation: Chemical property is the property which deals with change in chemical composition of the substance.

Physical change is the property which deals with change in physical state of the substance.

CH_4+2O_2\rightarrow CO_2+2H_2O

The above equation represents the oxidation of methane to form carbon dioxide and water. Thus the chemical composition has changed and is a chemical property.

Color and odor only involves no change in chemical composition.






5 0
4 years ago
Read 2 more answers
What is an alloy? A. A substitution of one metal for another metal B. A metal with a changed oxidation state C. A combination of
raketka [301]

The correct answer is the combination of a metal with another element.

An alloy is a combination of two or more metallic elements to make a stronger material. For instance, there are bronze alloys, brass alloys, and coin alloys.

We can confirm that an alloy is a combination of one metal with another metal  because stainless steel is made of an iron and chromium alloy (iron is a metal; chromium is also a metal). Therefore, we can confirm that option C is the best choice.

8 0
3 years ago
According to the following reaction, how many moles of carbon dioxide will be formed upon the complete reaction of 28.6 grams of
Musya8 [376]

Explanation:

We have 2CO + O2 => 2CO2.

Moles of CO = 28.6g / (28g/mol) = 1.021mol.

Moles of CO2 = Moles of CO = 1.021mol.

4 0
3 years ago
24. When the equation
serg [7]

Answer:

Explanation:

3

Explanation:

The reaction expression is given as:

     Al(OH)₃  +   HNO₃   →    H₂O   +  Al(NO₃)₃  

To solve this problem, let us assign coefficient a,b,c and d to each specie;

          aAl(OH)₃  +   bHNO₃   →    cH₂O   +  dAl(NO₃)₃  

Conserving Al : a  = d

                  O:  3a + 3b  = c + 9d

                  H: 3a + b  = 2c

                  N: b  = 3d

let a = 1 , d  = 1, b  = 3 , c = 3

 Multiply through by 3;

a  = 1, b  = 3, c = 3 and d  = 1

  Al(OH)₃  +   3HNO₃   →    3H₂O   +  Al(NO₃)₃  

7 0
3 years ago
Read 2 more answers
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