Chemistry Middle School

Which of the following statements are true about elements? Choose the two correct answers.

A.
Elements are the simplest form of matter.

B.
Elements combine together to form compounds.

C.
Elements are found in sunlight

D.
Elements are always positively charged.

E.
Elements are found in both living and nonliving things.

Answers

Answer 1
The answers are B and E
Answer 2
A and b because elements are the simplest form of mater and when you combine elements together they make something better or it’s called compounds

Related Questions

Suppose the city wanted to put a nuclear power plant in your community. What would some of the disadvantages be?
:(

Answers

Nuclear power plants use uranium as fuel. The process of mining uranium releases high amounts of carbon dioxide into the environment. Carbon dioxide is also released into the environment when new nuclear power plants are built. Finally, the transport of radioactive waste also causes carbon dioxide emissions.

Unlike fossil fuel-fired power plants, nuclear reactors do not produce air pollution or carbon dioxide while operating. However, the processes for mining and refining uranium ore and making reactor fuel all require large amounts of energy.Jan 15, 2020

uranium fuel to produce steam for generating electricity. This process changes uranium into other radioactive materials. If a nuclear power plant accident occurs, heat and pressure build up, and the steam, along with the radioactive materials, may be released.


Nuclear power plants use uranium as fuel as in nuclear reactions. The process of mining uranium releases high amounts of carbon dioxide into the environment.

What are nuclear reactions?

There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.

In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.

In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.

Learn more about nuclear reactions,here:

https://brainly.com/question/13315150

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Please help me with this I will give out extra points with the brain thing if you help me with this science question 3/5 image below. I promise

Answers

Answer:

A) 200 m/s2

Explanation:

Force is the push or pulls on an object with mass that causes it to change velocity or to accelerate.

Force represents a vector, which means it has both magnitude and direction.

Given:

Mass of metal ball = 0.025 kg

Force = 5 N

To Find:

Acceleration, = ?

Solution:

Formula:

answer is 200 m/s2 lol

Scientific laws differ from scientific theories because laws do not provide
A)
a hypothesis.
B)
a description
C)
an explanation
D)
a statement.

Answers

A) a hypothesis hope it helped :)

What coefficient should be used to make the following equation balanced? N2+O2--> _NO

Answers

                 ║∧║······→Hello.←······║∧║

                                          Your answer should be:

                                                N2 + O2 → 2NO

····················································································

I hope this answered your question!

Thanks for spending time reading this :)

(A brainliest would be appreciated!)

⊕If this answer doesn't answer your question or you are displeased by it please tell me in the comments I would like to know. And if I can, I will remove it.⊕

Have a wonderful day

The coefficient used to make the following equation balanced: N2 + O2 → NO is 2.

BALANCING EQUATION:

Balancing an equation means ensuring that each atom of an element on both sides of an equation.

To balance an equation, coefficients, which are numbers placed in front of the elements, are used.

According to this question, the following equation is given:

N2 + O2 → NO

To balance the equation, we make use of coefficient 2 in front of nitrogen oxide (NO) as follows:

N2 + O2 → 2NO

Learn more at: https://brainly.com/question/11322377?referrer=searchResults

How is the Sun related to day and night and the change of seasons?

Answers

Explanation:

As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer

Answer:

As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer.

Explanation:

hope this helps have a good rest of your day :) ❤

hurry please!!!
a) 42%

b) 14%

c) 64%

d) 100%

Answers

Answer:

A)42%

Explanation:

10+22+15+11=58

100-58=42

Is there a 28% because if you add all of that up it equals 72 and subtract 72 from 100 gives you 28%
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