Why are food preservatives added to food?

O A.

to increase the rate of reaction

O B.

to decrease the rate of reaction

OC. to decrease potential energy of the reactants

OD. to increase the temperature of the reaction

At standard temperature and pressure, a 0.50 mol sample of H2 gas and a separate 1.0 mol sample of O2 gas have the same (A) average molecular knetic energy (B) average molecular speed (C) volume (D) effusion rate (E) density

How many atoms in 2.8 mol of neon?

Be sure to answer all parts. Enter the formula for potassium dihydrogen phosphate and determine its molecular (formula) mass.

What is the difference between valence and core electrons

What element has a molar mass of 30.974 g/mol

Why can't double-replacement reactions start with one reactant is a pure metal?

The reaction 2 A + B2 2 AB follows this mechanism: Step 1: A + B2 AB + B (slow) Step 2: A + B AB (fast) What is the order with respect to [B2] in the overall reaction?

How many grams of P4O10 are produced if you burn 50.0 g of phosphorus with sufficient oxygen?

Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NaOH.

Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to A. be decreased by two thirds. B. be increased by two thirds. C. be decreased by one third. D. be increased by one third