Which cannot be separated into simpler substances?

If 25.0 ml of seawater has a mass of 25.895 g and contains 1.295 g of solute, what is the mass/mass percent concentration of solute in the seawater sample? 5.18% 5.001% 3.862% 96.5% 20.00%

The bond between f and cl would be: pure covalent polar covalent ionic metallic

According to the collision theory, which is required for a high number of effective collisions?

Are parts of the circulatory system . The , and

Why are metals good conductors of electrical current? A. Electrons can flow freely in metals. B. Electrons can be permanently transferred from one metal atom to another. C. Electrons stay in fixed positions in metals. D.

When metals react with nonmetals, an ionic compound generally results. what is the predicted general formula?

Why could the Bohr model not predict line spectra for atoms other than hydrogen?

Cryolite, Na3AlF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation. 1.) Balance the equation - AlO3 (s) + NaOH (l) + HF (g) - ->Na3AlF6+H2O (g) 2.) If 17.5 kilograms of Al2O3 (s), 51.

The volume, in liters, of 538 g of CO2

What are two types of cold air masses that influence the weather in North America? Name them and describe their humidity.