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DanielleElmas [232]
3 years ago
13

Can you tell me about atoms

Chemistry
1 answer:
trasher [3.6K]3 years ago
4 0

Answer:

is the smallest unit of ordinary matter that forms a chemical element.

Explanation:

and were created after the Big Bang 13.7 billion years ago.

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Suppose that you lowered the temperature of a gas from 100˚C to 50 ˚C. By what factor do you change the volume of the gas?
Maru [420]

Answer:- Volume decreases by a factor of 1.15.

Solution:- At constant pressure, volume of the gas is directly proportional to the the kelvin temperature.

The equation is written as:

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where, V_1 is the volume at initial temperature T_1 and V_2 is the volume at final temperature T_2 .

Temperature must be in kelvins. So, let's convert both the temperatures to kelvin.

To convert degree C to kelvin we add 273.

So, T_1  = 100 + 273 = 373 K

T_2 = 50 + 273 = 323 K

The equation could also be written as:-

\frac{V_1}{V_2}=\frac{T_1}{T_2}

\frac{V_1}{V_2}=\frac{373}{323}

\frac{V_1}{V_2} = 1.15

From here we could say that the volume decreases by a factor of 1.15.

For example if the initial volume V_1 is 1 L then final volume V_2 will be \frac{1L}{1.15} that is 0.87 L.




4 0
3 years ago
Ethical Behavior Worksheet Situation 1. You are taking a very difficult chemistry course, which you must pass to maintain your s
krok68 [10]

Answer:

I would not accept it.

Explanation:

Although it is tempting to accept the janitor's offer and save the scholarship, which is not easy to get, I would not accept his offer, as I do not believe in victories based on dishonesty and would be heavy on conscience if I did the opposite. Obviously, I would not like to lose my scholarship and for that reason, I would look for other ways that would be honest and help me improve my grade. If I could not improve and lose the scholarship, I would be extremely sad, but I would be at peace with my conscience.

4 0
3 years ago
What is the chemical formula for carbon tetrafluoride?
Degger [83]
The answer is C. CF4

5 0
3 years ago
Read 2 more answers
How do the rates of the forward and reverse reactions change throughout a reaction?
fenix001 [56]
The rates of the forward and reverse reaction depends on the temperature on which the reaction will proceed, either endothermic of exothermic. it also depends of the concentration of the reactants and products. if the reaction is exothermic, so if the reaction temperature is increased then it will favor the forward reaction, then if the reaction is lowered then it will favor the reverse reaction
3 0
3 years ago
When zn(oh)2(s) was added to 1.00 l of a basic solution, 1.09×10−2 mol of the solid dissolved. what is the concentration of oh−
uysha [10]
The concentration of the basic solution is determined by:

N = (number of moles / volume of solution) 

number of moles = 1.09 x 10^-2 mol
volume of solution = 1 liter
N of basic solution = 1.09 x 10^-2 mol / 1 liter
N = 1.09 x 10^-2 mol/L

The initial concentration of Zn (OH)2 is 0; the basic solution is 1.09x10^-2 M, then the concentration of OH in the final solution is 1.09x10^-2 M



7 0
3 years ago
Read 2 more answers
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