When a scientific theory has been tested and proved by the scientific community, it

becomes a law.

1) True

2) False

Calculate the number of carbon atoms in 25.0 grams of isopropyl alcohol (c3h8o)

State 3 properties of acid

Use the following key to classify each of the elements below in its elemental form: A. Discrete atoms ... C. Metallic lattice B. Molecules ... D. Extended, three-dimensional network 1. Krypton 2. Argon ... 3. Phosphorus 4. Nitrogen ...

You want to understand temperature. which of the following would you study? A. the heaviness of different objects B. how much air a balloon can hold C. a glass of water and a tray of ice D. how many marbles fit into a box

Express each of the following numbers in scientific notation with correct significant figures: (a) 711.0 (b) 0.239 (c) 90743 (d) 134.2 (e) 0.05499 (f) 10000.0 (g) 0.000000738592

For the reaction C2H5OH + O2 - - > 3CO2 + 3H2O delta H = - 2434 kJ/mol. Is this an exothermic or endothermic reaction?

A liquid used to dissolve a solid is referred to as: a catalyst a solvent an inhibitor an indicator

Write a balanced equation to show the reaction of sulfurous acid with caesium hydroxide to form water and caesium sulfite.

In the human body, a series of chemical reactions results in the making of energy that is used at both the cellular and organismal levels.

What causes the earths crust to spread