What are the impacts of the ph level rises in the sea

Which of these is true of a chemical reaction a. Energy is either released or absorbed. b. Energy is always absorbed. c. Energy is always released. d. Energy is not transferred.

What is an example of an irreversible physical change? melting an ice cube making sawdust crumpling paper boiling water

For atoms in the ground state, electrons begin filling the 3d sublevels starting with 1. Sr and ending with Cd 2. Sc and ending with Cd 3. Sr and ending with Cu 4. Sc and ending with Cu

The temperature of a person with an extremely high fever can be lowered with a sponge bath of isopropyl alcohol (C3H7OH). The heat of vaporization of this alcohol is 11.1 kcal/mol.

In a balanced chemical reaction which of the following is true? The products will weigh more than the reactants. The reactants will weigh more than the products. The mass of the products depends on whether they are gases or not.

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?