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Lostsunrise [7]
2 years ago
13

Which of the following correctly represents the radioactive decay of cesium-137?

Chemistry
1 answer:
Lelu [443]2 years ago
6 0
The decay mode of cesium-137 is beta decay. This means that the cesium-137 decays into a beta particle and a nuclide with the same mass number, but with a charge number that is 1 more than that of cesium.

Therefore, this means Cs-137 decays into an electron and Barium-137, meaning the answer is choice 1.
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ehidna [41]
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8 0
3 years ago
Classify each of these soluble solutes as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. Solutes formula hydroch
matrenka [14]

Compounds which on dissolving in water gets completely dissociates into its ions are known as strong electrolytes whereas compounds which on dissolving in water gets partially dissociates into its ions are known as weak electrolytes.


Substances which gives solution on dissolving in water and do not dissociates into ions also does not conduct electric current are known as nonelectrolyte.

  • Hydrochloric acid, HCl

On adding HCl (strong acid) in water, it will completely dissociates into ions (H^{+} and Cl^{-}) and thus, it is a strong electrolyte.

  • Sodium hydroxide, NaOH

On adding NaOH (strong base) in water, it will completely dissociates into ions (Na^{+} and  OH^{-}) and thus, it is a strong electrolyte.

  • Formic acid, HCOOH

On adding HCOOH (weak acid) in water, it will partially dissociates into ions (H^{+} and  HCOO^{-}) and thus, it is a weak electrolyte.

  • Methyl amine, CH_3NH_2

On adding CH_3NH_2 (weak base) in water, it will partially dissociates into ions (CH_3NH_3^{+} and  OH^{-}) and thus, it is a weak electrolyte.

  • Potassium chloride, KCl

On adding KCl in water, it will completely dissociates into ions (K^{+} and  Cl^{-}) and thus, it is a strong electrolyte.

  • Ethanol, C_2H_5OH

On adding C_2H_5OH in water, it will not dissociates into ions  and thus, it is a nonelectrolyte.

  • Sucrose, C_{12}H_{22}O_{11}

On adding C_{12}H_{22}O_{11} in water, it will not dissociates into ions  and thus, it is a nonelectrolyte.

3 0
3 years ago
What are two fungal skin infections that humans can contract?
Natali5045456 [20]
Ringworm and jock itch
5 0
3 years ago
If Iron (Fe) gained a proton what would it be?
Mkey [24]
If iron (Fe) gained a proton it would become cobalt (CO).
8 0
3 years ago
What type of forces must the polar water molecules break to dissolve ethanol, C2H5OH?
ANTONII [103]

Answer:

Option B

Covalent Bonding

Explanation:

Covalent bonds in C2H5OH are formed between the carbon and hydrogen atoms, where there are shared electron pairs.

This is a weak form of attraction that holds the C2H5OH molecule together, and can easily be broken by a polar solvent such as water.

In order for water to be able to dissolve the C2H5OH molecule, it must break the covalent bonding present in the molecule

5 0
3 years ago
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