Chemistry, 05.03.2021 02:20 thanitoast84
A)Calculate the percent by mass of each element (H and O) in water (H2O):
b)Calculate the mass of hydrogen in your 50.0 mL of water. |
c)Calculate the mass of oxygen in your 50.0 mL of water.
d)Use the density of water to calculate the volume of one mole of water, in mL.
one mole of water is 50 ml
e)One swallow of water is about 20 mL of water.
f)How many moles of water are in one swallow?
g)How many molecules of water are in one swallow?
Answers: 2
Chemistry, 22.06.2019 16:00, yfnal3x
What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided
Answers: 2
Chemistry, 22.06.2019 22:00, shaylasimonds587
The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?
Answers: 2
Chemistry, 22.06.2019 22:30, kristen17diaz
How many valence electrons are in atom of radon?
Answers: 1
A)Calculate the percent by mass of each element (H and O) in water (H2O):
b)Calculate the mass of h...
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