Question

Topic: Physical and Chemical Changes
Help with 2 Questions plz :D Medal Here :)

Answer 1

1.Lists of observable changes that suggest a chemical or physical change has occurred

2.Methods scientists use to determine if a change was physical or chemical

Answer 2

your answer is chimical

Answer 3

that is not an anwser for any of the questions and i know that

Answer 4

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Answer 5

@Elsa213

Answer 6

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Answer 7

@Mr_Perfection_xD

Answer 8

1. Physical Changes
Aluminum foil is cut in half.
Clay is molded into a new shape.
Butter melts on warm toast.
Water evaporates from the surface of the ocean.
A juice box in the freezer freezes.
Rubbing alcohol evaporates on your hand.


Chemical Changes
Milk goes sour.
Jewelry tarnishes.
Bread becomes toast.
Rust forms on a nail left outside.
Gasoline is ignited.
Hydrogen peroxide bubbles in a cut.
Food scraps are turned into compost in a compost pile.
A match is lit.
You take an antacid to settle your stomach.
Your body digests food.
You fry an egg.

In general, a physical change is reversible, while a chemical change is not. Change in color, temperature, emission of gas, and the formation of new substances may indicate chemical reactions. Change of shape, mass, etc. may indicate physical change.

Hopeit helped

Answer 9

thank you :D

Answer 10

your welcome now can you help me !!:)

Answer 11

sure tag meh