7. A sample of gas has a volume of 15.0 L when at a temperature of 220 K and a pressure of 310kPa. (Ideal gas Law)
a. 4a. Find the number of moles of gas.
b.
4b. If there are 52 g of the gas in the sample, which noble gas is it?

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?