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Dmitriy789 [7]
2 years ago
11

I've been stuck on this assignment for 3 weeks now, help please.-Pics included-

Chemistry
1 answer:
Bond [772]2 years ago
3 0
1. 2NaN3 —> 2Na + 3N2
2. 2Pb + 2H2O + O2 —> 2Pb(OH)2
3. 2C4H12 + 13O2 —> 8CO2 + 10H2O
4. 4Fe + 3Sn(NO3)4 —> 4Fe(NO3)3 + 3Sn
5. Fe(NO3)3 + 3NaOH —> Fe(OH)3 + 3NaNO3

Balancing equations depends on the atom numbers you start with.

If you are having trouble you can look up ‘chemical equation balancer’ and type in the starting elements and simply replace the arrow with an = equal sign and then enter the reactants. It will show you the balanced equation
But please— make sure you actually understand the process of balancing because it’s important for future chem classes
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A graph of energy consumption in the United States versus time slopes upward. This indicates that energy consumption has _____ .
vredina [299]

Answer: Option (a) is the correct answer.

Explanation:

The graph shows that as and when time increases the need for energy consumption also increases.

This might be due to increase in population with time that has lead to increase in consumption of energy.

Thus, we can conclude that out of the given options, a graph of energy consumption in the United States versus time slopes upward. This indicates that energy consumption has increased.

5 0
3 years ago
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Differentiate between a pure substance and a mixture and provide examples
stich3 [128]

Explanation:

pure substances are those substances which are made up of one elements

mixture that those substances which are made by more than two or three elements

7 0
3 years ago
Which of the following IS a part of the Kinetic Molecular Theory (KMT)?
Arisa [49]

The statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly. That is option B.

<h3>What is Kinetic Molecular Theory (KMT)?</h3>

Kinetic Molecular Theory (KMT) is defined as the theory that describes the physical behaviour of gases.

The Kinetic Molecular Theory (KMT) include the following:

  • Ideal gas molecules are constantly moving;

  • They have negligible volume;

  • They have negligible intermolecular forces;

  • They undergo perfectly elastic collisions; and

  • They have an average kinetic energy proportional to the ideal gas's absolute temperature.

Therefore, the statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly.

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5 0
1 year ago
1. Nene geese in Hawaii are endangered because of
lesya692 [45]

Answer:

✔ habitat destruction

Explanation:

the 3 reasons are:

hunting

habitat loss

introduced predators

summed up its habitat destruction

8 0
2 years ago
Einstein's formula tells us the amount of energy to which a given mass would be equivalent, if it were all suddenly turned into
skad [1K]
Einstein's famous equation, E = mc^2 relates the mass (m) of an object to energy (E). The speed of light (c), is the constant of proportionality. Einstein formulated the equation within his theory of special relativity. Indeed, a physical interpretation of this equation is that any given mass is equivalent to the energy given by the equation, if it were suddenly converted to energy. Therefore the answer to the question is true. 
5 0
3 years ago
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