science

the process that produces chemical change is a

• chemical reaction

• chemical release

• physical reaction

• physical release

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

_______ are the substances that exist before the reaction begins

• released substances

• original substances

• reactants

• regents

Tags

NGSS.MS-PS1-1

the substances that form as a result of reactions are called

• productions

• altered substances

• products

• producers

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

during a reaction, bubbles tell you that _________, but they don't tell you what kind

• a reaction occurred

• heat was released

• gas was captured

• gas was released

Tags

NGSS.MS-PS1-2

a chemical reaction tells chemists four things at a glance. chose the correct four.

• reactants

• heat source

• products

• proportions of each substances present

• physical state

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-1

reactants are listed on the ________ of an arrow, separated from each other by

• left, minus sign

• right, plus sign

• right, minus sign

• left, plus sign

the products are places on the _____________ of the arrow, separated by

• left, minus sign

• right, plus sign

• right, minus sign

• left, plus sign

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

The arrow between the reactants and the products represents the _________________.

• changes that occur during a chemical reaction

• the original substances before the chemical reaction

• the final substances after the chemical reaction

• what direction the change occurred

Tags

NGSS.MS-PS1-2

When reading an equation, the arrow is read as __________________.

• becomes

• was

• creates

• produces

Acetic acid dissolved in water is called __________________

• battery acid

• acid from lemons

• acid from limes

• vinegar