A compound composed of two oppositely charged atoms is a (n)

a. covalent bond

c. postive bond

b. physical bond

d. ionic bond

What natural resources are harvested give me 5 examples

List 2 potential negative impacts that extraction of gold has on the environment?

A diprotic acid, H 2 A, has acid dissociation constants of K a1 = 2.27 * 10 - 4 and K a2 = 4.00 * 10 - 11. Calculate the pH and molar concentrations of H 2 A, HA -, and A 2 - at equilibrium for each of the solutions. A 0.103 M solution of H 2 A.

When humans burn fuel or cut down trees, they (increase/decrease) levels of carbon dioxide in the atmosphere.

The ___is always equal to the number of protons + the number of neutrons that the atom has

Green plants take in water (H2O) and carbon dioxide (CO2) and produce glucose (C6H12O6) and oxygen gas (O2). Calculate the molar masses of carbon dioxide, glucose, and oxygen gas.

Are 3 eggs the same quantity as 3 dozen eggs?

What is an empirical formula? O A. The chemical formula that reveals how the molecule actually exists in nature O B. The chemical formula that is written in terms of percent composition O C.

What part of an original isotope's number of atoms remains after two half lives?

What gas has formed when bubels form when water is boiled?