Science test 4/26-27

What does decomposition look like?

AB>A+B

What does single replacement look like?

Ab+C>AC+B

What does double replacement look like?

AB+CD>AB+BD

What does synthesis look like?

A+B>AB

What does F stand for?

Fizz

What does A stand for?

Aroma

What does C stand for?

Color change

What does T stand for?

Temperature change

What do the Ss stand for?

New substance and solids

What pH range means acid?

1-6

What pH range means base?

8-14

Blue to red means?

Acid

Red to blue means?

Base

What do acids taste like?

Sour

What do bases taste like?

Bitter

Examples of acids?

Fruits and milks

Examples of bases?

Cleaners and baked goods

What is an example of acid + base?

Water + salt

What is H+?

Acid

What is OH-?

Base

What does endothermic mean?

Heat going into cold

What does exothermic mean?

Heat leaving heat

What is the law of Conservation of Mass?

Elements of one side appear on the other side, they can be measured in closed systems.

Does color change always mean a chemical change occurred?

No

Properties of hydrogen are…

\-Explodes w/ flame

\-Colorless and odorless

Properties of oxygen…

\-Makes fires stronger

\-Colorless and odorless

Properties of acetylene..

\-Burns w/oxygen

\-Colorless

Properties of carbon dioxide…

\-Kills fires

\-Colorless and odorless

What is considered a strong acid?

1-4 pH

What is considered a strong base?

12-14 pH

What does pH measure?

Power of hydrogen

What do catalysts do?

Speed up chemical reactions

What does aqueous mean?

Mainy watery substance

What does it mean when phenolphthalein turns pink?

Basic

What color does methyl orange paper turn as a base?

Yellow

What color does methyl orange paper turn as an acid?

Red/pink

What is neutralization?

A reaction between a base and acid which forms water and salt.