Which formula represents a hydronium ion?

(1) H3O + (3) OH-

(2) NH4 + (4) HCO3-

a gas has a volume of 4.54 L at 1.65 atm and 75. I decrease celsius. At what pressure would the volume of the gas be increased to 5.33 L if the temperature is increased to 103 degrees Celsius?

What unit would you use when describing the mass of a solution Mol/L g L mL

Which bond requires the most energy to be broken? single covalent bond double covalent bond triple covalent bond The bond can't be broken.

As they pass through the rock cycle, atoms: a. stay within the same mineral. b. move through the rock cycle in the same manner. c. do not move through the rock cycle at the same rate. d. that were adjacent to each other remain near each other.

Read the list of substances. Spoon, Styrofoam cup, Scissors, Pencil Which substances are likely to float in water?

What is linen composed of

Which of the following elements has the lowest electronegativity? A) Xe B) Rb C) I D) Cl

An oxidation-reduction reaction is also known as a redox reaction. What is one way you could tell that a redox reaction has occurred? a. when one substance transfers electrons to another. b. when a substance reacts with oxygen. c.

How many atoms are there in 2.59 mol of carbon monoxide (CO) ?

What is 5.06 grams of oxygen in atoms