How large is a piece of gold with density 19.32g/cm and mass 318.97g

Which particle has the least mass? (1) alpha particle (3) neutron (2) beta partic1e (4) proton

A 50g ice cube at 0 degrees celcius is added to a glass containing 400g of water at 45 degrees celcius. What is the final temperature of the system? You may assume that no heat is lost to the surroundings.

A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.75 % (m/v) NaCl Solution B: 1.92 % (m/v) glucose Solution C: distilled H2O Solution D: 9.

What is described in the following equation? 2H2 (g) + O2 (g) → 2H2O (l) A. hydrogen gas combining with oxygen gas to form water B. hydrogen gas combining with water gas to form hydroxide C. water decomposing to oxygen gas and hydrogen gas D.

How does temperature affect the phases of matter?

Carbon dioxide, or CO2, is a (n) A.) atom. B.) mixture. C.) element. D.) compound.

If the atomic number of an element is 6 and its mass number is 20, how many neutrons are in the atom's nucleus?

A chemist exploring potential fuels for use in outer space is considering using vaporized aluminum chloride as a fuel.

Dinitrogen monoxide has a structural formula of NNO and requires resonance structures in order to draw the Lewis structures of the molecule.

Mg + 2HCI >MgCI2 + H2 What is the answer of the chemical reaction?