Which subatomic particle has a negative charge?

(1) proton (3) neutron

(2) electron (4) positron

In preparation for a demonstration, your professor brings a 1.50-L bottle of sulfur dioxide into the lecture hall before class to allow the gas to reach room temperature.

Given a balanced chemical equation below: 3Cu (s) + 2H3PO4 - - - > Cu3 (PO4) 2 + 3H2 How many moles of copper are needed to react with 5 moles of phosphoric acid?

Sodium+cloride what is the moleculat mass

A student touches a freshly baked cake that was taken out of the oven. Which best explains why the cake feels hot? Molecules in the skin are moving faster than molecules in the cake. Molecules in the cake are moving faster than molecules in the skin.

Which elements are necessary to accomplish work?

How many neutrons are in Cesium-130 (Cs) ? 55 75 130 185

An atom in a pure metal that's face-centered cubic has ___ neighbor atoms.

Rank the following bonds from strongest to weakest and provide the bond energy: the bond between hydrogen and oxygen in a water molecule; the bond between sodium and chloride in the NaCl molecule; the bond between atoms in a metal;

In an endothermic reaction do the reactants or the products have the lower potential energy

What kind of nuclear reaction would result in the release of a beta particle