How many grams of calcium nitrate are needed to make a 3.30 L of a 0.10 M solution?

If 1.30 g of dry ice (solid carbon dioxide) is placed in an empty balloon, what will be the volume of the balloon at 15.0°C and 740 torr once all of the dry ice has sublimed (i. e., converted to gaseous CO2) ?

Which reactants form the salt CaSO4 (s) in a neutralization reaction? (1) H2S (g) and Ca (ClO4) 2 (s) (2) H2SO3 (aq) and Ca (NO3) 2 (aq) (3) H2SO4 (aq) and Ca (OH) 2 (aq) (4) SO2 (g) and CaO (s)

It is important not to mix R-22 and R-410A refrigerants in the same container because: a. the mixture may be impossible to reclaim. b. the mixture will explode. c. the mixture is corrosive. d. they use different oils.

An electron has a charge of - 1.6 * 10-19 c. how many electrons would be needed to produce a net charge of - 5.5 * 10-7 c? round the final answer to one decimal place.

How many electrons would found in the ion who's symbol is I-?

A patient needs 0.024 g of a sulfa drug. There are 6-mg tablets in stock. How many tablets should be given? Express your answer as an integer.

What does the periodic table displays

Consider the reaction: 2A (g) + B (g) →3C (g). When A is decreasing at a rate of 0.200 M⋅s-1, how fast is B decreasing?

2.70 feet is the same as how many cm?

Which two body systems contribute to acid-base balance of blood?