Quiz about 8th GRADE PHYSICAL SCIENCE MIDTERM EXAM STUDY GUIDE

Question 1

Look at the following reaction: 2C2H6 + 7 O2----4CO2 + 6H2O. What type of reaction is this?

Accepted Answer

Combustion

Answer

Decomposition

Answer

Synthesis

Answer

Double Replacement

Question 2

In which type of chemical reaction is a compound is made from simpler materials?

Accepted Answer

Synthesis

Answer

Decomposition

Answer

Combustion

Answer

Double Displacement

Question 3

A neutral particle in the nucleus of an atom is a

Accepted Answer

neutron

Answer

proton

Answer

photon

Answer

electron

Question 4

Three types of radioactive decay include gamma, alpha, and beta decay

Accepted Answer

True

Answer

False

Question 5

A column of the periodic table, which contains elements with similar properties is

Accepted Answer

Group

Answer

Period

Answer

Law of Conservation of Mass

Answer

Isotope

Question 6

When do two or more small nuclei combine to form a single larger nucleus, a neutron, and a tremendous amount of energy?

Accepted Answer

nuclear fusion

Answer

nuclear chain reaction

Answer

nuclear fission

Answer

decomposition

Question 7

The table of elements arranged by increasing atomic number (modern periodic table) or by increasing atomic mass (Mendeleev's periodic table) is called Single replacement

Accepted Answer

False

Answer

True

Question 8

In Nuclear fission, neutrons produced in one reaction cause other reactions, which cause more reactions, and so on.

Accepted Answer

False

Answer

True

Question 9

The chemical formula that provides the information of the elements and molecules that are reacting as well as the molecules that are being produced from that reaction.

Accepted Answer

Chemical equation

Answer

Nuclear fission

Answer

Chemical reaction

Answer

Law of Conservation of Mass

8th GRADE PHYSICAL SCIENCE MIDTERM EXAM STUDY GUIDE

17 questions

The atomic number for Oxygen is 8. The mass number is 15.9994. How would you obtain the number of its neutrons?

What is the process in which unstable nuclei of radioactive atoms become stable by emitting charged particles and energy?

Look at the following reaction: 2C2H6 + 7 O2----4CO2 + 6H2O. What type of reaction is this?

In which type of chemical reaction is a compound is made from simpler materials?

A neutral particle in the nucleus of an atom is a

What's true about predicting the products of a chemical reaction?

What is the unit of measurement used to determine the quantities of reactants and products in a chemical reaction?

Three types of radioactive decay include gamma, alpha, and beta decay

Calculate the atomic number of Zinc (Zn) using the periodic table.

Describe what happens in a nuclear chain reaction.

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