The number of protons in the nucleus is always equal to the number of neutrons. True or False?

The substance that exists in the greatest quantity in a solution is called what?

A mixture is made of two or more materials that A. cannot be separated by any means. B. cannot be separated by physical means. C. can be separated by physical means. D. can only be separated by chemical means.

If the gas inside the flask is cooled so that its pressure is reduced from 797.3 torr to a value of 715.

Iron metal can be produced from the mineral hermatite, Fe2O3 by reation with carbon Fe₂O3 + C Fe + co2 balance the equation How many grams of carbon are needed to react with 525g of hermatite

The table below gives the numbers of protons, electrons, and neutrons in four atoms. Atom Number of protons Number of electrons Number of neutrons 1 39 39 52 2 40 40 50 3 39 39 54 4 40 40 51 Based on the information that is given, which atom in the

Table salt is formed when an electron is transferred from a sodium atom to a

Convert 45 joules to heat calories

What is 450 g of flour a measure of? A) Weight B) Inertia C) Gravity D) Mass

List the four (4) ways you can tell that a chemical reaction has occurred.

A student has 2.99 g of Potassium Permaganate. How many mL of a. 532 M solution can the student make? How does one solve this?