Answer:Water contains Oxygen the purified the methane gas
Explanation:
Yes. a linear graph does. Pass the vertical line test
Each value in the domain X,results in a unique range ,y, value
Answer:
The empirical formula is C2H5O
Explanation:
Step 1: Data given
Suppose the mass of the compound = 100.0 grams
The compound contains:
53.31 % C = 53.31 grams C
11.18 % H = 11.18 grams H
35.51 % O = 35.51 grams O
Step 2: Calculate moles
moles = mass / molar mass
Moles C = 53.31 grams / 12.01 g/mol
Moles C = 4.439 moles
Moles H = 11.18 grams / 1.01 g/mol
Moles H = 11.07 moles
Moles O = 35.51 grams / 16.0 g/mol
Moles O = 2.22 moles
Step 3: Calculate mol ratio
We divide by the smallest amount of moles
C: 4.439 / 2.22 = 2
H: 11.07 / 2.22 = 5
O: 2.22/2.22 = 1
C2H5O
The empirical formula is C2H5O
Answer:
Physical changes
Explanation:
Changes in the state of matter are physical changes.
First, the material is made up of the same components that is was before it changed states.
The physical properties of the material changed, but its chemical composition did not, meaning that is is a physical change.
One is real and one isn’t
