Inert gases are highly electronegative true or false

Which element has an ion that is smaller than an ion of calcium?

An electrochemical cell is constructed such that on one side a pure nickel electrode is in contact with a solution containing Ni2 + ions at a concentration of 2 * 10-3 M.

Which of the following is an example of geographic isolation? A. a population of salmon dies out because they cannot find food. B. a zebra with a long mane moves into a population of zebras with short manes. C.

Explain the 'redox' process in your own words.

The maximum allowable concentration of lead in drinking water is 9.0 ppb. (a) Calculate the molarity of lead in a 9.0-ppb solution.

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?

Which is a typical characteristic of an ionic compound? a. electron pairs are shared among atoms. b. the ionic compound has a low solubility in water. c. the ionic compound is described as a molecule?

34g aluminum are combined with 39g chlorine gas which is the limiting reactant

Using 3 O2 molecules and 5 H2 molecules, how many water molecules can be produced? Do you have any left over?

The specific heat of a certain type of cooking oil is 1.75 j / (g·°c). how much heat energy is needed to raise the temperature of 2.83 kg of this oil from 23 °c to 191 °c?