Name any two polymers which are formed by the process of condensation polymerization.

Which of the following is a strong base? A. NH3 (ammonia) B. H20 (water) C. CaCO3 (calcium carbonate) D. NaOH (sodium hydroxide)

A type of covalent bond in which electrons are shared unevenly

How many atoms are in 35.1 g of sodium chloride (NaCl) ?

SI4F2 Lewis Structure

Explain the general trends of atomic size and ionization energy across rows and down columns of the periodic table

Calculate the density of a rectangular solid that has a mass of 25.71 g, and its dimensions are 2.3 x 4.01 x 1.82 cm.

When the metal sample reacts with acid, the gas evolved will be collected over water; the gas is said to be "wet".

Solid iron (II) sulfide reacts with aqueous hydrochloric acid HCl to produce hydrogen sulfide gas H2S and aqueous iron (II) chloride.

How are mixtures compounds and elements alike?

The percentage of carbon dioxide in the atmosphere has increased in the last century and is a concern for the environment as it increases the greenhouse effect. Give one possible explanation for the increase of carbon dioxide in the atmosphere