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?
50 answers
Do not post your questions more than once. When a tutor with this expertise comes online, he/she will see your questions and respond.
ok..... sry-_-
1. Incorrect. It is splitting water into hydrogen and oxygen.
2. Correct
3. Incorrect. They can be combined in many ways.
thank you Anonymous!!!:)
What about #4?
Here are the answers:
1. D
2. C
3. B
4. B
I got a 4/4 100%!
Nicoles answers are WRONG. I did the questions and got a 20%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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.
Nicole and Angel are correct! 4/4 100%
4/4 100%
I did the answers from Nicole and I got a 100% so listen to her
Nicole is 100% right I just got a 4/4
Yup 4/4
Yup!!!! Awesome
4/4
Thanks, Nicole. Got a 4/4. =D
Nicole is right!!!! Got 100%
Nicole is right, 100% 4/4 on the quick check.
Nicole is right! 4/4.
I GOT A 2/4
nicole IS right, its not nice for the people that say she isn't right to mess with us like that.
Nicoles right, I got a 100% on my test.
yes she is correct
Got em! Thank youuu!
Nicole is actually right i gotta 4/4
Answers:D,C,B,B
thanks for the answer on my quiz guys
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.
Nicole is wrong so wrong she got me 100%. Good Job
NICOLE IS RIGHT!! I GOT A 100% USING:
1.D
2.C
3.B
4.B
THANK YOU SO MUCH NICOLE!!!!!!!!!
FazeBlazeTaze your wrong... Your not even from faze lol, anyways 4/4 correct thanks Nicole.
For number 2 I put b instead of c but yeah 4/4 if I pushed c Nicole is right
Nicole is right I got a 100% idk what that other dude talkin about lol.
Yep. And it’s still accurate this year
D
C
B
B
100:)
Nicole is correct 4/4 for the Physicall and Chemical changes Quick Check. D,C,B,B are the answers.
Nicole is correct
Nicoles right :)
thanks Nicoles!!!
d,c,b,b 100%
nicole is correct 4/4 THANK YOU SO MUCH! i know im like 2 years late to responding but whatever XD
Nicole is right for 6th grade unit4 lesson5 on connexus
1. a
2. c
3. d
4. d
Nicole is right :)
nicole is right
Thank you Nicole I got a %100 or 4/4
Thank u so much i got a 4/4
Nicole is a 100% correct!! Thanks!!
THANK YOU NICOLE!!!!!!!!!! I GOT 4/4 PLZ LISTEN TO HER IF U WANT A GOOD GRADE!!!!!!!!!!😁😁😁😁😁😁😁😁
Hello thank you Nicole for helping be get a good grade I got a 100% and I'm also Nicole so LOL
1 answer