an element has atomic number 10 and an atomic number mass of 20. How mamy neutrons are in the atom of this element?

If a reaction mixture initially contains 0.195 m so2cl2, what is the equilibrium concentration of cl2 at 227? c?

Carla is making two drinks. She is making one hot chocolate and one chocolate milk. Which best describes the agitation needed to make sure the cocoa powder is mixed in well? Chocolate milk would require more agitation than hot chocolate does.

4130 J of energy 52g water 10 c initial specific heat 4.18 J waht would the final temperature be

Which term is defined as a measure of the average kinetic energy of the particles in a sample of matter? (1) activation energy (3) temperature (2) potential energy (4) entropy

What is the ph of a solution when the number of h + ions equals the number of oh - ions in the liquid?

The temperature of a substance is a measure of the average Select one: a. attractive forces between its molecules b. mass of its molecules c. potential energy of its molecules d. kinetic energy of its molecules

Which molecular geometry is least likely to occur with sp3 hybridization? tetrahedral trigonal planar bent trigonal pyramidal

The number of moles in 118.0g of calcium chloride

You should be worried about the safety of a healthcare product if you see which of the following claims made? a. FDA approved! b. Miracle cure! c. Scientifically tested! d. Effective in double-blind study!

Which branch of science provide the proof that earth is approximately 4.6 billion years old