Question

help pls, check my work asap!??

1) Which of the following is a chemical change? (1 point)
Boiling of water***
Melting a cube of ice
Dissolving 10 grams of salt in water
Splitting water into hydrogen and oxygen

2) What is the mass of water that results from combining 2.0g of hydrogen with 16.0g of oxygen? (1 point)
14.0g
16.0g
18.0g***
20.0g

3) Why are plastic building blocks good for modeling molecules? (1 point)
They come in thousands of shapes and sizes.***
They can be combined in many different ways.
They are rigid and do not easily separate.
There are as many different colors as there are atoms.

4. What did Antoine Lavoisier’s experiments demonstrate? (1 point)
Atoms always split into pairs during a chemical change.
Mass is neither lost nor gained during a chemical change.***
Matter can be created during a chemical change.
Energy is neither lost nor gained during a chemical change.

help pls asap?

Answer 1

Do not post your questions more than once. When a tutor with this expertise comes online, he/she will see your questions and respond.

Answer 2

ok..... sry-_-

Answer 3

1. Incorrect. It is splitting water into hydrogen and oxygen.

2. Correct

3. Incorrect. They can be combined in many ways.

Answer 4

thank you Anonymous!!!:)

Answer 5

What about #4?

Answer 6

Here are the answers:
1. D
2. C
3. B
4. B
I got a 4/4 100%!

Answer 7

Nicoles answers are WRONG. I did the questions and got a 20%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 8

Nicole is actually correct. I got a 4/4

Answers:
1.D
2.C
3.B
4.B

FazeBlazetaze, your the one who is actually wrong. I don't know what you did but this is a four question quick check so that means you cant get a 20% at all!!! You can only get 100%,75%,50%,25%, or 0%. Not A 20%. You must have been looking at the wrong quick check.

Everyone, go with Nicole on the answers.
Shes correct.

Answer 9

Nicole and Angel are correct! 4/4 100%

Answer 10

4/4 100%

Answer 11

I did the answers from Nicole and I got a 100% so listen to her

Answer 12

Nicole is 100% right I just got a 4/4

Answer 13

Yup 4/4

Answer 14

Yup!!!! Awesome

Answer 15

4/4

Answer 16

Thanks, Nicole. Got a 4/4. =D

Answer 17

Nicole is right!!!! Got 100%

Answer 18

Nicole is right, 100% 4/4 on the quick check.

Answer 19

Nicole is right! 4/4.

Answer 20

I GOT A 2/4

Answer 21

nicole IS right, its not nice for the people that say she isn't right to mess with us like that.

Answer 22

Nicoles right, I got a 100% on my test.

Answer 23

yes she is correct

Answer 24

Got em! Thank youuu!

Answer 25

Nicole is actually right i gotta 4/4
Answers:D,C,B,B

Answer 26

thanks for the answer on my quiz guys

Answer 27

According to my retinal analysis, nicole is one hundred percent correct. FazeBlazeTaze uses a practical sense of.

Illogical reasoning.

*Fist bumps nicole.


Ill be back
*exits website.

Answer 28

Nicole is wrong so wrong she got me 100%. Good Job

Answer 29

NICOLE IS RIGHT!! I GOT A 100% USING:
1.D
2.C
3.B
4.B
THANK YOU SO MUCH NICOLE!!!!!!!!!

Answer 30

FazeBlazeTaze your wrong... Your not even from faze lol, anyways 4/4 correct thanks Nicole.

Answer 31

For number 2 I put b instead of c but yeah 4/4 if I pushed c Nicole is right

Answer 32

Nicole is right I got a 100% idk what that other dude talkin about lol.

Answer 33

Yep. And it’s still accurate this year

Answer 34

D
C
B
B
100:)

Answer 35

Nicole is correct 4/4 for the Physicall and Chemical changes Quick Check. D,C,B,B are the answers.

Answer 36

Nicole is correct

Answer 37

Nicoles right :)

Answer 38

thanks Nicoles!!!

Answer 39

d,c,b,b 100%

Answer 40

nicole is correct 4/4 THANK YOU SO MUCH! i know im like 2 years late to responding but whatever XD

Answer 41

Nicole is right for 6th grade unit4 lesson5 on connexus

Answer 42

1. a
2. c
3. d
4. d

Answer 43

Nicole is right :)

Answer 44

nicole is right

Answer 45

Thank you Nicole I got a %100 or 4/4

Answer 46

Thank u so much i got a 4/4

Answer 47

Nicole is a 100% correct!! Thanks!!

Answer 48

THANK YOU NICOLE!!!!!!!!!! I GOT 4/4 PLZ LISTEN TO HER IF U WANT A GOOD GRADE!!!!!!!!!!😁😁😁😁😁😁😁😁

Answer 49

Hello thank you Nicole for helping be get a good grade I got a 100% and I'm also Nicole so LOL

Answer 50

WDYM I have 5 questions and not 4? ?? :(