What is the mass (in grams) of 1.95 moles of water

A mixture of 10 cm3 of methane and 10 cm3 of ethane was sparked with an excess of oxygen. After cooling to room temperature, thr residual gas was passed through aqueous potassium hydroxide. What volume of gas was absorbed by the alkali?.

What is the name of the compound with the formula ccl 4? question 6 options: carbon tetrachloride carbon chloride tetrachlorine carbide chlorine carbide?

Elena weighed out 50 grams of salt. She dissolved the salt in 285 grams of water. After she added salt the water had 335 grams of weight. How did the addition of the salt affect the final mass and volume of the mixture?

The main function of a producer in an ecosystem is

One of a kind static electricity is a result of electrons moving into an object from another object. What is another way static electricity can build up in an object?

Assuming that air contains 78 percent N2, 21 percent O2 and 1 percent Ar, all by volume. How many molecules of each type of gas are present in 1.0 L of air at STP?

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.