You can find chemistry in daily life in the foods you eat , the air you breathe , and cleaning chemicals . For example , chemistry holds the explanation for why ice floats , while most substances sink when they freeze .
the components of the pure substance will not be able to be separated by physical means
sure its b but im preatty sur dont spell check me plz
0.15*240=36 ml of alcohol in <span>240 ml of a 15% alcohol mixture
0.4x = </span>ml of alcohol in x ml of a 40% alcohol mixture
0.2(x+240)= ml of alcohol in (x+240) ml of a 20% alcohol mixture
0.15*240 + 0.4x = 0.2(x+240)
36+0.4x=0.2x+48
0.2x = 12
x=12/0.2=120/6=20 ml of a 40% alcohol mixture
