Temporary hardness of water is

caused by the pressure of

A. CaSo4

B. Ca (HCo3)

C. CaCL2

D. CaCo3

Magnesium has a charge of + 2, and chlorine has a charge of - 1. To form a chemical bond, the compound would have magnesium ion (s).

What is the meaning of the euphemism, "lose your lunch"? A) To "lose your lunch" is to die. B) To "lose your lunch" is to vomit. C) To "lose your lunch" is to give away your money. D) To "lose your lunch" is to be unable to find your lunch.

The deployment of airbags during a car accident results from a chemical reaction that, until the 1990s, involved sodium azide, NaN 3. Sodium azide has since been replaced by less toxic substances that react in a similar way.

Explain an example of a chemical bond

What are the three different types of selective breeding

An atom has an atomic number of 9 a mass number of 19 and an electron configuration of 2-6-1 explain why the number of electrons in the second and third shells shows that this is in an excited state

How can a chemical reaction be sped up? Pack in more of the reactant to increase the_.

How does a mixture of benzoic acid and benzaldehyde can be isolated separately by extractions?

What is a compound? a) a combination of two or more substances that are not chemically combined b) a combination of two or more elements that are combined in a certain ratio

A gas has a volume of 75mL at a pressure of 200.0 kPa. What will be the new volume be in mL if the pressure is decreased to 60.0 kPa in sig figs