Chemistry, 29.06.2019 22:30 alkaline27

Classify the reactions as endothermic or exothermic. a. the reaction between ammonium nitrate and water absorbs heat from the surrounding environment. b. three drops of concentrated sulfuric acid added to 100 milliliters of water in a beaker makes the beaker hot. c. ammonium chloride dissolved in a beaker of water makes the beaker cold. d. uranium atoms are split to produce nuclear energy. e. water separates into hydrogen and oxygen when an electric current is run through it. f. methane and oxygen are combined to produce methanol and heat.

Answers: 1

Show answers

Answers

Answer from: maryam4241

A - Endothermic. This is because it absorbs heat rather than releases it.

B - Exothermic. It's releasing heat which in turn makes the beaker hot.

C - Endothermic. The Ammonium Chloride is absorbing the heat away from the beaker.

D - Exothermic. To produce nuclear energy, it needs to release heat.

E - Endothermic. The hydrogen and oxygen atoms are absorbing the heat given off from the electric current.

F - Exothermic. It is producing heat or releasing heat.

Exothermic is the losing, release, or production of heat. Endothermic is the exact opposite; it is the storing of heat.

Hope this helps!

Answer from: stefancvorovic1

The reaction between ammonium nitrate and water absorbs heat from the surrounding environment. Endothermic Reaction

Three drops of concentrated sulfuric acid added to 100 milliliters of water in a beaker makes the beaker hot. Exothermic Reaction

Ammonium chloride dissolved in a beaker of water makes the beaker cold. Endothermic Reaction

Uranium atoms are split to produce nuclear energy. Exothermic Reaction

Water separates into hydrogen and oxygen when an electric current is run through it. Endothermic Reaction

Methane and oxygen are combined to produce methanol and heat. Exothermic Reaction

Explanation:

Answer from: Quest

The answer is d.potassium

Answer from: Quest

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.

Another question on Chemistry

Chemistry, 21.06.2019 18:00

The compound methyl butanoate smells like apples. its percent composition is 58.8% c, 9.9% h, and 31.4% o. what’s the empirical formula ?

Answers: 1

Answer

Chemistry, 22.06.2019 01:50

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

Answers: 1

Answer

Chemistry, 22.06.2019 10:00

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

Answers: 2

Answer

Chemistry, 22.06.2019 12:30

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

Answers: 1

Answer

You know the right answer?

Classify the reactions as endothermic or exothermic. a. the reaction between ammonium nitrate and wa...