Chemistry, 12.10.2020 06:01, supiine1405
Physical and Chemical Changes Separation of a Mixture
Mass of evaporating dish + watch glass=273.5g
Mass of evaporating dish, watch glass + sample=278.5g
Mass of sample=5.0g
Determining percent of NaCl in mixture:
Mass of evaporating dish, watch glass, and solids(after water washes)=286.1g
Mass of NaCl=
Percent of NaCl in unknown=
Determining Percent of CaCO3 in mixture:
Mass of dish, watch glass, and SiO2( final weighing)=239.2
Mass of CaCO3=
Percent of CaCO3 in unknown=
Determining a Percent of SiO2 in mixture:
Mass of SiO2=
Percent of SiO2 in unknown=
I really don't understand how to math all of the stuff so if you could also provide how to solve it, that would be helpful!
Answers: 3
Chemistry, 22.06.2019 05:30, maddyjones4172
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 3
Physical and Chemical Changes Separation of a Mixture
Mass of evaporating dish + watch glass=273.5g...
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