A compound has a molar mass of 90 grams per mole and the empirical formula CH2O. What is the molecular formula of this compound?

What is the correct name for Ca2+?

If a 1.00M aqueous NaCl solution has a density of 1.01g/mL, what is the concentration in mass percent? 5.79% 58.44% 1.00% 99.0%

How do endocytosis and exocytosis differ?

Sometimes clothes removed from the dryer cling together. What kinds of charges are on the clothes?

Explain why larger crystals form if the porcelain is made differently

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