a sample of carbon monoxide gas occupies 150.0mL at 25.0 degrees Celsius. It is then cooled at a constant pressure until it occupies 100.0mL. What is the new temperature in degrees Celsius?

A methane molecule contains 1 atom of carbon. The number 1 represents how many significant figures? A methane molecule contains 1 atom of carbon. The number 1 represents how many significant figures? One two three infinite

Problem when you go camping and have a fire to roast marshmallows, what happen to the wood at the end of the night? it burns and we call this a chemical change. however the next morning there's less material in the fire pit than the night before.

Outlining information is an effective type of organization that can lead to deep processing.

There is 30g of ethanol dissolved in 63g of water. The molar mass of ethanol is 46.07g/mol. How many moles of water are there?

A meteorologist has very specialized expertise in which of the following activities?

Student follow up The ionic equation for the reaction between zinc and sulfuric acid is. Zn (s) + 2H (aq) - - Zn" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

What does it mean when there are 2.3 x 10-4 moles?

Electric force is an A. attraction and repulsion between protons and electrons . B. attraction and repulsion between protons and neutrons. C. attraction and repulsion between neutrons and electrons.

A salt crystal has a mass of 0.18 mg. how many nacl formula units does it contain?