Boost Review: Matter: Properties And Change Question Preview (ID: 56470)


8.P.1.: Understand The Properties Of Matter And Changes That Occur When Matter Interacts In An Open And Closed System. TEACHERS: click here for quick copy question ID numbers.

Where are metalloids located on the periodic table.
a) New matter is created during a chemical reaction.
b) Atoms are broken down into smaller parts.
c) The mass of the products is greater than the mass of the reactants.
d) along the step-like line

Which of the following is false about elements?
a) It is a pure substance
b) It is made of compounds
c) It is represented by a chemical symbol.
d) The mass of the products are equal to the mass of the reactants.

Which of these is a chemical change?
a) melting
b) freezing
c) burning
d) evaporating

Which is always true of a balanced chemical equation?
a) Coefficients on both sides of the equation are multiples of 2.
b) Subscripts on both sides of the equation are the same.
c) Both sides of the equation contain the same number of elements and same number of atoms
d) The number of molecules are greater on the reactant side.

Elements in the same column of the periodic table have _____
a) similar chemical properties.
b) the same number of protons.
c) have similar atomic mass.
d) atoms have the same size.

Which of these is a physical change?
a) forming a precipitate.
b) rusting
c) melting
d) burning

If you heat a liquid to determine the temperature at which if forms bubbles and changes into a gas, you are measuring______
a) a physical property called conductivity
b) a chemical property called reactivity
c) a physical property called boiling point
d) a chemical property called solubility

When substances are combined to form a mixture, they ___________
a) keep their original properties
b) form new chemical bonds
c) form new compounds
d) cannot be separated physically.

According to the law of conservation of mass, which statement is true?
a) New matter is created during a chemical reaction.
b) Atoms are broken down into smaller parts.
c) The mass of the products is greater than the mass of the reactants.
d) The mass of the products are equal to the mass of the reactants.

Which is not evidence of a chemical change?
a) New matter is created during a chemical reaction.
b) gas bubbles are produced
c) change in shape
d) Release Heat

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