Which of the following is not a simple machine

A pulley

B Elevator

C screw

D wheel and axle

Is often mistakenly regarded as being based on science

why can you smell a cake baking when you are in your bedroom chemistry how does kinetic theory explain how you can smell coffee and bacon at the same time?

What is the volume of 9.783 x 1023 atoms of kr at 9.25 atm and 512k?

How many oxygen molecules are in 22.4 liters of oxygen gas at 273 K and 101.3 kPa?

How do we get mass number

How many grams of methane, CH4 are produced from the complete reaction of 5.15 moles of carbon monoxide, CO

If you change the state of something, say, liquid to solid, is it a physical or chemical change?

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?

Label the molecular shape around each of the central atoms in the amino acid glycine. hint