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kirill115 [55]
3 years ago
5

If a substance has a volume of 30ml and a mass of 6 grams, what is its density?

Chemistry
1 answer:
fredd [130]3 years ago
6 0
0.2 is the correct answer and shown above is the shown work

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What will a cathode ray do if a positive electrode is placed near the beam?
sammy [17]

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The function of the cathode ray tube is to convert an electrical signal into a visual display. Cathode rays or streams of electron particles are quite easy to produce, electrons orbit every atom and move from atom to atom as an electric current.

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Which statements about the reaction are true? Select all that apply. The reaction is exothermic The reaction is endothermic The
Digiron [165]

The statements true for the reaction are A, C, and E.

The potential energy diagram of the following reaction has been given:

\rm CH_4\;+\;2\;O_2\;\rightarrow\;2\;H_2O\;+\;CO_2\;+\;891\;kJ

The reaction has been given to form water and carbon dioxide, along with the release of 891 kJ of energy.

<h3>Statements for the reaction</h3>

The endothermic reaction is  the type of reaction that absorbed the energy from the system, while exothermic reaction released energy in the system.

The given system has releasing 891 kJ of energy. Thus, it has been an exothermic reaction.

The equation has been representing the 891 kJ of energy as the product. Thus, it has been released in the reaction as product.

The potential energy graph has been representing that the energy of the reactant has been higher than the product.

Thus, the statements true for the reaction are A, C, and E.

Learn more about potential energy, here:

brainly.com/question/19448013

6 0
3 years ago
Tobacco use: The _____ _______ cause of ______ death
Nata [24]

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Tobacco use: The most preventable cause of cancer death

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8 0
3 years ago
Warning: Do not buy a subscription if you're on a trial.
pochemuha

Answer:

a

Explanation:

its right bevan I did it hope it help u even think dont see it

5 0
3 years ago
Determine the number of molecules in a 100. gram sample of CCl4
enyata [817]
100. g CCl4* (1 mol CCl4/ 153.8 g CCl4)* (6.02*10^23 CCl4 molecules/ 1 mol CCl4)= 3.91*10^23 CCl4 molecules.
(Note that the units cancel out so you get the answer)

Hope this helps~
8 0
3 years ago
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