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sergiy2304 [10]
3 years ago
10

Check if these are right please, and correct me on any of them:

Chemistry
1 answer:
TiliK225 [7]3 years ago
4 0
I believe those all look correct!

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An atom has 81 electrons, 84 neutrons, and 82 protons. What element is this atom?
posledela

Answer:

Lead

Explanation:

The subatomic particles within an atom can be used to know the atom or element given.

Of particular interest is the number of protons within the atom.

The periodic table is based on the atomic number of atoms. This atomic number is the number of protons within an atomic space.

So; If we know the number of protons within an atom, we can know the element.

The number of protons given is 82, the element is  therefore lead.

4 0
2 years ago
Which of the following pairs of elements belong to the same group
ale4655 [162]
C. C and Pb; Carbon and Lead being in the same group.
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2 years ago
What do atoms form when they bond chemically?
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They form molecules which can be in solution form if diluted in water, but some do form solutions on exposure to the atmosphere i.e they are deliquescent like pellets of sodium hydroxide
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3 years ago
The calvin cycle and the krebs are referred to as cycles of chemical reactions because they
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Answer:

The options are

a. occur inside organelles. b. start over continually. c. are part of the carbon cycle. d. allow energy to flow in ecosystems.

The answer is b. Start over continually

Explanation:

The two cycles involves a continuous process as long as the reactants are present under suitable conditions. The cycle happens all the time due to it being necessary to produce important products all the time for the body system.

A good example involves the existing Carbon dioxide and water reacting together to get converted into substance that could provide energy (ATP and NADH) such as Glucose.

8 0
3 years ago
Oil, which is built from the nonmetals hydrogen, carbon, and oxygen:
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Oil consists of many B. Covalent bonds between the nonmetals of Carbon, hydrogen and oxygen.
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3 years ago
Read 2 more answers
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