Which of the radioactive emissions has the highest energy? A. Beta B. Gamma C. Alpha (thank you so much )

Answers

Answer 1

Answer: B Gamma hope im helping

Answer 2

Answer:

I think it is B. Gamma, cause it made the Hulk. That is not my only reason though.

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If you have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, how much ammonia (in grams) is produced? 3H2 + N2 --> 2NH3

Answers

If we have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, 39.66g ammonia is produced.

What is mole concept?

Avogadro's number is the number of units in one mole of any substance and equals to 6.02214076 × 10²³. The units can be electrons, atoms, ions, or molecules.

No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.

Mass of a particular product is also find out by stoichiometry of a reaction as per the no. of mole given in the reaction.

Given,

3H₂ + N₂ --> 2NH₃

3.50 moles of hydrogen

5.00 moles of nitrogen

Limiting reagent for the reaction is H₂.

3 moles of H₂ produce 2 moles NH₃

1 moles of H₂ produce 2/3 moles NH₃.

3.5 moles of H₂ produce (2÷3)×3.5 moles NH₃ = 2.33 moles

1 mole of NH₃ = 17g of NH₃

2.33 mole of NH₃ = 39.66g of NH₃

Therefore, If we have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, 39.66g ammonia is produced.

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If you have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, how much ammonia (in grams) is produced?
3H2 + N2 --> 2NH3
3.5 moles H2 (2 moles NH3/3 moles H2) (17 grams NH3/1 mole NH3) = 40 grams NH3

During an experiment, a student observes the formation of a precipitate. Why does this indicate that a chemical reaction is likely occurring?1)A solid forms, and there is a change of color.
2)A gas forms, and there is a change of color.
3)A solid forms, and light is emitted.
4)A gas forms, and light is emitted.

Answers

Chemical reactions involve the breaking of bonds and forming new bonds. All chemical reactions involves forming of new substances. For this, stuation, it is evident that a chemical reaction occur because a precipitate formed. Therefore the correct answer is stated in statement 1.

A solid forms, and there is a change of color.

Which of the following is not a phase change?melting of snow
evaporation of water from the ocean
condensation of water vapor to form clouds
hydrogen and oxygen gas combining to form water vapor

Answers

Answer : The correct option is hydrogen and oxygen gas combining to form water vapor.

Explanation :

Phase change : It is a change from one state to another state without changes in chemical composition.

Phase change such as solid to liquid, liquid to vapor, vapor to liquid, liquid to solid, vapor to solid, solid to vapor.

Melting of snow is a fusion process in which phase changes from solid to liquid.

Evaporation of water from the ocean is a evaporation process in which phase changes from liquid to vapor.

Condensation of water vapor to form clouds is condensation process in which phase changes from vapor to liquid.

Hydrogen and oxygen gas combining to form water vapor, there is no phase change in this reaction because a gas combine with another gas to form a water vapor as a gas.

hydrogen and oxygen gas combining to form water vapor is the correct answer.

Which of the following is an oxidation reaction? A. AuCl4- → AuCl 2- B. Mn7+ → Mn2+ C. Co3+ → Co2+ D. Cl2 → ClO3-

Answers

An oxidation reaction involves the loss of electrons or an increase in the oxidation state of an element. Options B, C, and D represent oxidation reactions, while option A does not.

Let's analyze the given options:

A. AuCl₄⁻ → AuCl₂⁻

In this reaction, the gold atom goes from a +3 oxidation state (AuCl₄⁻) to a +1 oxidation state (AuCl₂⁻). This means the gold atom gains two electrons, indicating a reduction rather than oxidation. Therefore, option A is not an oxidation reaction.

B. Mn⁷⁺ → Mn²⁺

In this reaction, the manganese atom goes from a +7 oxidation state to a +2 oxidation state. This indicates a decrease in the oxidation state, which means the manganese atom gains electrons. Therefore, option B represents an oxidation reaction.

C. Co³⁺ → Co²⁺

In this reaction, the cobalt atom goes from a +3 oxidation state to a +2 oxidation state. Similar to option B, this indicates a decrease in the oxidation state, representing an oxidation reaction.

D. Cl₂ → ClO₃⁻

In this reaction, the chlorine molecule (Cl₂) is converted to a chlorate ion (ClO₃⁻). Here, the chlorine atom undergoes an increase in oxidation state, changing from an oxidation state of 0 in Cl₂ to an oxidation state of +5 in ClO₃⁻. This indicates the loss of electrons by chlorine, making option D an oxidation reaction.

Therefore, options B, C, and D represent oxidation reactions, while option A does not.

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D. There must be oxygen added. 2 of them don't even have oxygen anywhere in the formula, and the 3rd loses oxygen, which is reduction.

Which is an example of a response?a. water lost from the lungs during breathing
b. ivy growing around the pole of a fence
c. the angle of the sun changing during the day
d. outside temperature dropping at night

Answers

The anwser is B.ivy growing aroung the pole of a fence I just took this test

The atomic number and the mass number of 18 and 40. Write the information conveyed by this statement.

Answers

There are 18 protons and electrons and 22 neutrons in the atom

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Explain the relationship between chemical bonds and energy in the body.

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