What is a substance used to increase the rate of a chemical reaction but it itself is not used up in the process?

Casey is given a sample mixture. Which component could be separated with a magnet? A) calcium carbonate B) glucose C) iron filings D) silica sand

A fixed quantity of gas fills a volume of 10.6 liters at 638 torr and 83 C. Find the volume it will occupy if the pressure is 1076 torr and the temperature rises to 96 C

A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Temperature and pressure remain constant. 3.9 liters 5.3 liters 6.3 liters 6.5 liters

In the chemical symbol for nitrogen gas, N2, what does the "2" represent?

Which criteria should materials of a technological design meet? Check all that apply. They must be imported. They must be affordable. They must be naturally made. They must be durable. They must be available.

Round to 4 significant figures 4,567,986

What is the particle of an atom that moves rapidly in a cloud like region around the nucleus

the number of joules needed to raise the temperature of 10 grams of water from 20 degrees celsius to 30 degrees celsius is

The combustion of propane (C3H8) produces CO2 and H2O: C3H8 (g) + 502 (g) → 3C02 (g) + 4H2O The reaction of 10 mol of O2 will produce how many moles of H2O?

How much does copernicium cost in dollars?