7. You dissolve 15 g of NaCl in 400 mL of water, then mix 100 mL of 1.0 MNaCl in with the

solution you made. What is the resulting concentration?

Identify the step in which droplets of water clump together around tiny dust particles in the air.

evaluating an experiment can include identifying things you would do differently if u were to repeat the experiment later

Which compound has both ionic and covalent bonding? (a) CaCO3 (b) CH2Cl2 (c) CH3OH (d) C6H12O6

Give two examples of how our society uses isotopes

New evidence can lead to a change in scientific knowlodge true or false

Gasohol is a fuel containing ethanol (c2h6o) that burns in oxygen (o2) to give carbon dioxide and water.

Consider a neutral atom with 30 protons and 32 neurons. What is the atomic number of the element?

Find the molarity and molality of 37.0 wt% Hcl. Assume the density of the acid is 1.19g/ml

Which excerpt from "Bone Detective" best shows that Diane France is recognized as an expert in her line of work? But, once again, she was able to produce an amazingly detailed impression.

Blank of water is a physical change because boiling the water is blank from a liquid to a gas