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Fittoniya [83]
2 years ago
15

During a chemical reaction ____ is never created or destroyed

Chemistry
1 answer:
arsen [322]2 years ago
7 0

Answer:

Matter

Explanation:

The Law of Conservation of Mass

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HC1 solution is mostly water. NaOH solution is mostly water. When 50mL of HC1 is mixed with 50mL of NaOH, what is the final mass
elixir [45]
Since water has a density of about 1g/mL, and we are assuming HCl and NaOH are mostly water, the total mass of the 2 solutions is 100 g.
Due to the conservation of mass, the mass of product must equal the total mass of reactant, therefore the final mass must also be 100 g.
5 0
4 years ago
The balanced equation below shows the products that are formed when pentane (C5H12) is combusted. C5H12 + 8O2 mc029-1.jpg 10CO2
Maru [420]

Answer: The mole ratio of oxygen to pentane for the combustion of pentane is 8 : 1.

Explanation: The given reaction is a type of combustion reaction.

Combustion reaction is a reaction in which a hydrocarbon reacts with oxygen gas to produce water and carbon dioxide gas.

For the reaction of pentane with oxygen, the balanced equation would be:

C_5H_{12}+8O_2\rightarrow 5CO_2+6H_2O

In the reaction, 1 mole of C_5H_{12} reacts with 8 moles of O_2 gas.

Thus giving us the mole ratio as

Oxygen : Pentane = 8 : 1

4 0
3 years ago
Read 2 more answers
A water molecule collides with a sugar molecule. What type of energy
zlopas [31]

Answer:

kinetic energy.

Explanation:

an object in motion collides with another object to make that object in motion.

kinetic energy is the energy of an object being in motion.

7 0
4 years ago
WILL GIVE BRAINLIEST TO ANSWER
aleksklad [387]

Answer:

2.5 grams

Explanation:

you can see it on the graph

4 0
3 years ago
Real gas expansion in a vacuum is exothermic or endothermic?
lisov135 [29]
I think it is exothermic
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