Four moles of carbon monoxide (CO) has 48 grams of carbon (C) and 64 grams of oxygen (O). What is the percent composition of carbon in carbon monoxide?

6.25%

8.3%

43%

75.0%

The density of an unknown crystal is 2.65gmL. If a 4.46 g sample of the crystal is added to a graduated cylinder containing 25.0 mL of water, what will the volume read?

Determine the number of moles of gas contained in a 1.25 L container at 25 degrees Celsius and 800 torr

19. Why is slow-freezing so damaging to food compared to fast freezing?

The area of the 48 contiguous states is 3.02 x 106 miles2. Assume that these states are completely flat, no mountains and no valleys. What mass of water would cover these states with a rainfall of two inches?

If I wrote 7h2o, how many hydrogen atoms do I have now? How many oxygen atoms?

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.

The compound KOH is called

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?