Which pair of nitrogen bases will form a bond in a DNA molecule?

a. cytosine and adenine

b. adenine and thymine

c. guanine and thymine

d. thymine and cytosine

For 2Na (s) + Cl2 (g) - 2NaCI (s), how many grams of sodium Chloride will be made from 115 g of sodium metal when reacted with excess chlorine gas?

Is that air contain nitrogen more than oxygen?

Classify the following change as physical or chemical: A match lights when struck. A. Physical change B. Chemical change

Which group of elements has seven valence electrons? a) the carbon family b) the halogens c) the halogens d) the noble gases

What is the net ionic equation for the reaction between aqueous solutions of na3po4 and cuso4?

What are the common elements in a canyon?

How many carbons atoms are in propane?

This type of formula indicates the kind, number, arrangement, and bonds but not the unshared pairs of the atoms in a molecule.

What does the water inside the jar represent

What is solubility? 1) solubility is how much solute will precipitate out of solvent 2) solubility is how much solvent will dissolve in solute 3) solubility is how much solid only will dissolve in liquid only