A sample of hydrogen gas has a volume of 10.0 liters at 95.0 kPa and 298 K. If temperature remains constant, what is the volume of the sample at 101.3kPa

The elements of the periodic table are arranged in horizontal rows according to each successive element's greater ... ? 1. atomic mass 2. atomic radius 3. number of protons 4. number of neutrons

Methyl orange (hmo) is an acid-base indicator. its two forms in solution are hmo (red) and mo - (yellow). when hmo is added to distilled water, the solution is yellow. how would you turn the solution red?

Calculate the mass of water produced when 42.0 g of propane, c3h8, is burned with 115 g of oxygen. hint: write balanced equation first

Barium (Ba) is in group 2. Recall that atoms in group 1 lose one electron to form ions with a 1 + charge what type of ion does barium form?

The enthalpy of formation of water is - 285.8 kJ/mol. What can be inferred from this statement?

A student makes observations when water is added to a blue solution of copper sulfate. The student makes only 1 observation: the solution changes to a lighter shade of blue. Is this an example of a chemical reaction? Explain your reasoning.

When dos the spring tide occur

As ice transforms into steam, Question options: new molecules are formed. the types of atoms are changed. energy is absorbed by the molecules. the mass of the molecules is increased.

Why do chemists consider the periodic table so useful?

Plates include large sections of Earth Oceanic or Continental