A cubic piece of metal measures 7.50 cm on each edge. If the metal is nickel, whose density is 8.90 g/cm3, what is the mass of the cube?

Two different sub-atomic particles are described below: Particle X: Carries a negative charge Particle Y: Attracts Particle X Which statement is true? X is a neutron and Y is an electron. X is a neutron and Y is a proton.

What is the ideal gas constant? A. It is a universal constant used for all gases. B. It is a constant that applies only at STP. C. It is a specific constant for a particular gas. D. It is a constant that depends on the conditions.

Which of the following is true for compounds?

What happens to atoms when they form molecules?

Which type of bond results when one or more valence electrons are transferred from one atom to another? (1) a hydrogen bond (2) an ionic bond (3) a nonpolar covalent bond (4) a polar covalent bond

What is the net electrical charge on a magnesium ion that is formed when a neutral atom loses two electrons?

Solid magnesium carbonate (mgco3) and solid sodium nitrate were mixed, placed in water, and stirred. what is observed? 1. mgco3 and nano3 will not dissolve. 2. mgco3 and nano3 will dissolve. 3. mgco3 will remain undissolved and nano3 will dissolve.

A method of lowering the concentration of HCl (aq) is to allow the solution to react with a small quantity of Mg. How many milligrams of Mg must be added to 219 mL of 1.032 M HCl to reduce the solution concentration to exactly 1.000 MHCl

An autoclave would often be used by which of the following scientists?"

When discussing acids and bases any substance that accepts a patron by definition is considered an