Storyline 2, Investigation 6 Quizizz Game

Which of the following is a clue that a chemical reaction has taken place? Select all that apply.

• temperature change

• color change

• light is released

• release of a gas

• formation of a precipitate

Tags

NGSS.MS-PS1-2

Which of the following is NOT a clue that a chemical reaction has taken place?

• temperature change

• color change

• mixing reactants

• release of a gas

• formation of a precipitate

Tags

NGSS.MS-PS1-2

New substances formed in a chemical reaction are called ___.

• coefficients

• products

• subscripts

• reactants

Tags

NGSS.MS-PS1-5

Numbers placed in front of formulas in an equation are called ___.

• coefficients

• products

• subscripts

• reactants

The starting ingredients of a chemical reaction are called ___.

• coefficients

• products

• subscripts

• reactants

Tags

NGSS.MS-PS1-1

Numbers written below and to the right of an element’s symbol are called ___.

• coefficients

• products

• subscripts

• reactants

Which of the following is always equal on each side of the arrow in a balanced chemical reaction?

• sum of the coefficients

• sum of the subscripts

• total number of atoms

• total number of molecules

Tags

NGSS.MS-PS1-5

The total number of atoms represented by the formula Ca₃(PO₄)₂ is ____.

• 8

• 12

• 13

• 16

Tags

NGSS.MS-PS1-1

Balance the following equation on a piece of scrap paper. Then select the answer choice that matches your answer.

_F₂ + _C₂H₆ → _HF + _CF₄

• 5F₂ + C₂H₆ →

  4HF + 2CF₄

• 7F₂ + C₂H₆ →

  6HF + 2CF₄

• 12F₂ + 3C₂H₆ →

  21HF + 6CF₄

• 2F₂ + 3C₂H₆ →

  3HF + 2CF₄

Tags

NGSS.MS-PS1-5

Balance the following equation on a piece of scrap paper. Then select the answer choice that matches your answer.

_O₂ + _C₃H₈ → _H₂O + _CO₂

• 5O₂ + C₃H₈ →

  4H₂O + 3CO₂

• 6O₂ + 2C₃H₈ →

  8H₂O + 6CO₂

• 2O₂ + C₃H₈ →

  4H₂O + 2CO₂

• 9O₂ + 3C₃H₈ →

  12H₂O + 9CO₂

Tags

NGSS.MS-PS1-5