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Chemistry Practice Questions and Answers (Q&A)

C. Perez, Writer
Answered: Aug 01, 2019
The correct answer to this question is A, 2. Strontium is a chemical element. It is metal, which is soft and silver. Strontium has several uses. One important use is that it blocks X-rays that TV...Read More

4 Answers

1686 views
F.Brian
Answered: Jan 28, 2018
A few properties distinguish something to be a heterogeneous mixture. Included in this are mixtures that do not evenly mix, have more than one phase, particles are not uniformly distributed, and...Read More

3 Answers

1402 views
C. Bernthal, Teacher
Answered: Jan 17, 2019
The answer to this is A. A polar covalent bond is present in the water. This is a type of bond wherein the different electrons are closer to the oxygen nucleus as compared to the hydrogen...Read More

4 Answers

865 views
Chris Kenway, Content Writer
Answered: Oct 04, 2018
The answer to this is B. A Compound. A compound is composed of two or more atoms depending on the two elements that are mixed together in order to mix it. These elements are pure which means that...Read More

3 Answers

398 views
Alpha radiation or alpha particles contain two neutrons and two protons that are also known as the helium-4 nuclei. Due to their combined mass and their charges, they have a strong interaction...Read More

2 Answers

346 views
Mohit singh
Answered: Nov 19, 2017

Why different than the properties of reactant please define me why is it or not others?

3 Answers

341 views
C. Lopez, Chauffer
Answered: Apr 04, 2019
The answer to this is D. The given description can be associated with group number 16 in the periodic table. This group is also known as chalcogens. There are a lot of people who are familiar...Read More

2 Answers

340 views
F.Brian
Answered: Jan 19, 2018
The chemical formula Fe2(SO3)3 indicates nothing above. Chemical formulas are used in chemistry to refer to compounds and elements. There are various different types of compounds, having...Read More

2 Answers

311 views
J.Barbara
Answered: Mar 07, 2018
All metals are conductors of electricity, however, each type of metal has different conductivity level, and thus, some are more conductive than the other. For example, the Copper metal is one of...Read More

2 Answers

278 views
L. Brett, Sales Manager
Answered: May 29, 2019
Electrons are the particles that have a negative charge. Protons are the particles that have a positive charge. There are also neutrons which have a neutral charge. A lot of these particles are...Read More

2 Answers

215 views
John Smith
Answered: Sep 27, 2020
C and F

Positive ions have lost one or more electrons. When an ion loses an electron the ion has more protons than electrons and pull the electron clouds closer to the nucleus. Negative...Read More

1 Answer

210 views

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