a 54-gram sample of an unknown material has a volume equal to 20cm3 what is the identity of the substance
It could be aluminum because when you divide 54 by 20... if it gives you 2.7 which is the density of aluminum.
♚☽ Hope that helped!
Answers! He was almost 100% correct.
C
B
D
C
D
C
B, D
A
B
A
D
C
C
um... who do i trust??? Katie has solid logic, sorry Chris!!!!
Yeah it's C 100%
The answer is aluminum I took the test already and did my math with my dad and this answer is correct
Thats not correct!! ^
there are 25 questions that is only 13
1.) C
2.) B
3.) D
4.) C
5.) D
6.) C
7.) B, D
8.) A
9.) B
10.) A
11.) D
12.) C
13.) C
14.) Chemical
15.) Homogeneous
16.) Density
17.) Atoms
18.) Temperature
19.) Pressure
20.) Mixture
21.) Mass
22.) Physical property
23.) Compound
Remember to make sure to not plagiarize so um change it kinda
24.) You could use a magnet to separate the iron water and the sand will dissolve, you can take the wood chips and you have the sand
25.) A physical change only changes the look of a substance, a chemical change changes everything together, so it has to be a chemical change.
I hope this helps, have a good day <3