Which of the following is an acceptable method to directly measure volume using the metric system? A.
Using a balance scale to measure pounds.
B.
Using a graduated cylinder to measure liters.
C.
Using a graduated cylinder to measure gallons.
D.
Using a balance scale to measure grams.

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?