How many moles of copper are needed to react with sulfur to produce 0.25 moles of copper sulfide

If a temperature increase from 12.0 ∘C to 21.0 ∘C doubles the rate constant for a reaction, what is the value of the activation barrier for the reaction

How many atoms of hydrogen and oxygen are in ammonia cleaning solution

Which of these statements is correct? Eukaryotic cells do not have ribosomes. Eukaryotic cells do not have chloroplasts. Prokaryotic cells do not have a cell wall. Prokaryotic cells do not have a nucleus.

What is the difference between molar mass and atomic mass

Using the information in the table, what is the average atomic mass of sulfur? A) 31.972 amu B) 32.060 amu C) 33.71 amu D) 34.090 amu E) 35.967 amu

How many protons are in an element

Which of the following is an example of oxidation? A. Charcoal is placed on a grill and lighting fluid poured over it. B. A car gets rusty over the course of a few years. C.

The metric unit of force is the A. gram. B. kilogram. C. nanometer. D. newton.

Why can endothermic reactions be spontaneous? g?

What requirements must a molecule meet in order to be considered nonpolar?