What are atoms in general

What is the percent of H2O in a sample of a hydrate whose mass is 1.1290 g if the mass of water in the sample was 0.1660 g?

A thermos is presented as an example of an isolated energy system. How could you change the thermos into an open energy system?

Explain how a lunar eclipse differs from a solar eclipse

Table salt is a compound or element? explain

My high school chemistry is learning this and I don't understand it. "Heat is measured by the following equation: q=m-c-AT

How can you classify matter

What type of material can make up a mudflow? a. trees b. boulders c. soil d. all of the above

What is bedrock layer

The number of neutrons in the nucleus of an atom can be calculated by 1. Adding together the numbers of electrons and protons 2. Subtracting the number of protons from the number of electrons 3.

Chemical or physical properties? titanium is less dense than water