1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Troyanec [42]
2 years ago
12

Which of the following is a true statement? A. In the process of freezing, a liquid loses kinetic energy and turns into a solid.

B. In the process of freezing, a solid loses kinetic energy and turns into a liquid. C. In the process of freezing, a liquid gains kinetic energy and turns into a solid. D. In the process of freezing, a solid gains kinetic energy and turns into a liquid.
Chemistry
2 answers:
Firlakuza [10]2 years ago
7 0

The correct answer is A. In the process of freezing, a liquid loses kinetic energy and turns into a solid.

Explanation:

The kinetic energy in a substance is produced by the movement of the participles in it. Additionally, this depends on the state of the substance, for example, in gases substances move freely and therefore produce more kinetic energy than in liquids in which the movement is more restricted or in solids in which particles only vibrate. This means, in the process of freezing that implies a liquid turning into a solid the particles lose kinetic energy as their movement is limited in a solid state.

malfutka [58]2 years ago
4 0

its A. In the process of freezing, a liquid loses kinetic energy and turns into a solid. good luck ;)

You might be interested in
Which molecule is amphoteric?<br><br> A) NH4+<br><br> B )H2O<br><br> C )H2CO3−<br><br> D )H2SO4
Maslowich
The answer is letter choice B



4 0
3 years ago
Read 2 more answers
Students in a chemistry class added 5 g of Zinc to 50 g of hydrochloric acid. A chemical reaction occurred that produced zinc ch
Vinil7 [7]

Answer:

Mass = 11 g

Explanation:

Given data:

Mass of Zn = 5 g

Mass of HCl = 50 g

Mass of hydrogen gas produced = 6 g

Mass of zinc chloride produced = ?

Solution:

Chemical equation:

Zn + 2HCl    →   ZnCl₂ + H₂

Number of moles of Zn:

Number of moles = mass / molar mass

Number of moles = 5 g / 65.38 g/mol

Number of moles = 0.08 mol

Number of moles of HCl :

Number of moles = mass / molar mass

Number of moles = 50 g / 36.5 g/mol

Number of moles = 1.4 mol

Now we will compare the moles of both reactant with zinc chloride.

              Zn           :           ZnCl₂

               1             :             1

              0.08       :        0.08

            HCl          :         ZnCl₂

              2            :           1

             1.4          :         1/2×1.4 =0.7 mol

The number of moles of zinc chloride produced by Zn are less so it will limiting reactant.

Mass of zinc chloride:

Mass = number of moles × molar mass

Mass = 0.08 mol × 136.3 g/mol

Mass = 11 g

5 0
3 years ago
What is frequency and what unit is it measured in?
noname [10]

Answer: The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second. Also it is measured in Hertz.

Explanation:

6 0
3 years ago
Read 2 more answers
Given the following cations, list them in the expected order from smallest to largest: Y3+, Nb3+, Sb3+
Ugo [173]

<u>Answer:</u> Antimony ion is the smallest and yttrium ion is the largest.

<u>Explanation:</u>

Atomic radius of an atom is defined as the total distance from the nucleus to the outermost shell of the atom.

An ion is formed when a neutral atom looses or gains electrons.

  • When an atom looses electrons, it results in the formation of positive ion known as cation.
  • When an atom gains electrons, it results in the formation of negative ion known as anion.

As moving from left to right in a period, more and more electrons get added up in the same shell and the attraction between the last electron and nucleus increases, which results in the shrinkage of size of an atom. Hence, the size of an atom decreases.

The size of the cation is small then their neutral atom because it has less number of electrons while its nuclear charge remains the same. Thus, the nucleus attracts the electron more towards itself and leads to the decrease in size.

We are given three cations:  Y^{3+},Nb^{3+}\text{ and }Sb^{3+}

Yttrium lies in Period 5, group 3 of the periodic table.

Niobium lie in Period 5, group 5 of the periodic table.

Antimony lies in Period 5, group 15 of the periodic table.

So, the order of atomic radii in increasing order follows:

Sb^{3+}

Hence, antimony ion is the smallest and yttrium ion is the largest.

6 0
2 years ago
2. It is estimated that for every person infected with the polio virus in an endemic country, there are 200 people at risk for c
Olin [163]

Answer:

12

Explanation:

4 0
3 years ago
Other questions:
  • John dalton proposed a theory that all matter is made up of individuals particles which cannot be divided. what were those parti
    10·1 answer
  • What isotope is used for a standard for other atomic masses?
    8·1 answer
  • Maximum number of possible structural of C7H9N
    12·1 answer
  • The combustion of ethene in the presence of excess oxygen yields carbon dioxide and water: c2h4 (g) + 3o2 (g) → 2co2 (g) + 2h2o
    13·1 answer
  • Jeffrey is making a model of tungsten for his chemistry class. He has foam balls for the protons, neutrons, and electrons. He ha
    7·1 answer
  • describe the general trend in electronegativity as metals in group 2 on the periodic table are concidered in order of increasing
    13·1 answer
  • Compare and contrast the three states of matter liquid, solid, and gas.
    15·1 answer
  • Studying the decay of radioactive isotopes in dead organisms helps scientists to identify fossilized remains. The ratio of C-12
    6·1 answer
  • 1. Can living things serve as an indicator of exposure to electromagnetic radiation? Why?
    5·1 answer
  • Which of these has the most kinetic energy?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!