What is the outcome of observing a chemical property?

What effect does observing the physical properties of a substance have on the substance?

Choose the one that is a chemical property

Physical or Chemical Change? Iron rusts

Water freezing into ice is an example of a...

Which of the following is a negatively charged subatomic particle?

Which of the following properties uniquely identifies every element?

How many valence electrons does the element have?

What do the vertical columns on the periodic table tell us?

What are the vertical columns on the periodic called?

a row on the Periodic Table of Elements

Which elements are found on the left to middle of The Periodic Table and are shiny, good conductors, and malleable?

What kind of substance is composed of two or more elements that are chemically combined?

How many different elements are in an amino acid with the formula C₅H₁₁NO₂S?

How many atoms of Oxygen (O) are in each molecule of H₂SO₄?

Alanine is an amino acid with formula C₃H₇NO_2. How many total atoms in all are in each molecule of alanine?

What does the number 4 represent in 4NH₃?

What does the number ₃ represent in 4NH₃?

Select all of the reactants in this chemical equation.

Hydrogen + Oxygen --> Water

H2 + O2 --> H2O

Select of the products in this chemical equation.

Hydrogen + Oxygen --> Water

H2 + O2 --> H2O

The Law of Conservation of Mass says that matter can not be __________ or __________.

Is this equation balanced?

WHY does this picture demonstrate the Law of Conservation of Mass?