Question

Science questions medal givin if correct

Answer 1

We inhale oxygen and exhale carbon dioxide as a result of a ______ change in our bodies.
a.
physical
b.
chemical


Please select the best answer from the choices provided

A
B

Answer 2

Which of the following is an example of a chemical change?
a.
ice melting
c.
pounding gold into a coin
b.
milk souring
d.
a puddle of water evaporating


Please select the best answer from the choices provided

A
B
C
D

Answer 3

Which of the following is an example of a physical change?
a.
dissolving salt in water.
c.
cooking an egg.
b.
burning wood into charcoal.
d.
rusting iron.


Please select the best answer from the choices provided

A
B
C
D

Answer 4

What kind of chemical change involves breaking down substances using electricity?
a.
Electrothermic
c.
Electrolysis
b.
Exothermic
d.
Electrodecomp


Please select the best answer from the choices provided

A
B
C
D

Answer 5

This is all pretty simple. Tell me what you answered first.

Answer 6

Well do you know the difference between a Chemical and Physical change?

Answer 7

Yes sir

Answer 8

heres what i think they are

Answer 9

1.B
2.C
3.A
4.B

Answer 10

on the second question did you put them out of order on purpose?

Answer 11

No it just happens like that

Answer 12

Am i correct

Answer 13

Can someone tell me?

Answer 14

number 1 is right

Answer 15

but can you actually right out the answer for 2, 3, and 4 cause im a little confused

Answer 16

sure

Answer 17

Which of the following is an example of a chemical change?

a.
ice melting

b.
milk souring
c.
pounding gold into a coin
d.
a puddle of water evaporating


Please select the best answer from the choices provided

A
B
C
D

Answer 18

Which of the following is an example of a physical change?
a.
dissolving salt in water.

b.
burning wood into charcoal.
c.
cooking an egg.
d.
rusting iron.


Please select the best answer from the choices provided

A
B
C
D

Answer 19

What kind of chemical change involves breaking down substances using electricity?
a.
Electrothermic

b.
Exothermic
c.
Electrolysis
d.
Electrodecomp


Please select the best answer from the choices provided

A
B
C
D

Answer 20

i believe number 2 "Pounding gold into a coin" would be a physical change

Answer 21

i think

Answer 22

number 3 is right

Answer 23

and number 4 is right

Answer 24

number 2 is wrong however

Answer 25

hey whos up for a few more question

Answer 26

What chemical change occurs when a more reactive substance replaces a less reactive substance in a compound?
a.
Oxidative

b.
Displacement
c.
Reduction
d.
Endothermic

Answer 27

Bakon you here

Answer 28

yeah hold on

Answer 29

i think its displacement

Answer 30

well thats reassuring

Answer 31

sorry dude, im pretty sure tho