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astra-53 [7]
3 years ago
7

From the list below, which items describe beta decay? Check all that apply. APEX

Chemistry
1 answer:
Troyanec [42]3 years ago
8 0

Answer:

C. A neutron turns into a proton

D. An electron is ejected from the nucleus

Explanation:

  • Beta decay is a type of the three major types of decays, others being alpha decay and gamma decay.
  • During a beta decay the atomic number of an atom increases by one while the mass number remains the same.
  • Beta decay may be classified as; an electron emission, positron emission and electron capture.
  • <em><u>During electron emission an energetic electron is emitted from the nucleus, together with an antineutrino and a neutron in the nucleus turns into a proton. </u></em>
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If you add a solution of NaOH to a solution of H₂CO₃, two reactions occur, one after the other. Write the chemical equations for
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We have a solution of NaOH and H₂CO₃

First, NaOH will dissociate into Na⁺ and OH⁻ ions

The Na⁺ ion will substitute one of the Hydrogen atoms on H₂CO₃ to form NaHCO₃

The H⁺ released from the substitution will bond with the OH⁻ ion to form a water molecule

If there were to be another NaOH molecule, a similar substitution will take place, substituting the second hydrogen from H₂CO₃ as well to form Na₂CO₃

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2 years ago
Which statements describe the six elements found in all living things? Check all that apply.
vovangra [49]

Answer:

Carbon is the basis of all living things

Nitrogen is found in certain foods

Oxygen and hydrogen combine with each other to form water

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Explanation:

We are all made up of mainly three elements, Carbon, Hydrogen, and Oxygen. These three elements are found in every living organism on our planet, and along with a few trace elements, they make up all the nutrients we take in and use to build our bodies and survive.

Nitrogen is primarily found in meats, and this is because nitrogen is a key element in amino acids (which are used to build proteins), however we cannot directly assimilate nitrogen from the air, so we have to assimilate it through amino acids already synthesized in plants, or in proteins found in meat.

The chemical formula for water is H₂O. Seeing the chemical formula, it is obvious that hydrogen and oxygen are the only elements in the water molecule.

In our bodies, we use phosphorus to form our skeleton and help maintain it, sulfur and nitrogen can be found in some amino acids, and carbon, hydrogen and oxygen can be found in carbohydrates, lipids and proteins.

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2 years ago
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Explain why the elements of groups 1 and 7 are mostly used in<br> the form of compound
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Group 1 and group 7 of element group consists of alkali metal, which are generally combined with other elements in nature, so they have properties of compound
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a) Group 2 elements have 2 electrons on their outer shell, so they form a 2+ charge.

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