Element

Name

Symbol

Mass

Number

Atomic

Number

Number of

Protons

Number of

Neutrons

Number of

Electrons

Lithium

Carbon

Chlorine

Silver

Lead

Calcium

Tantalum

Radium

Samarium

Uranium

Americium

Lawrencium

Write the word equation for the chemical reaction: Zn (s) + 2HCl2 (aq) - - - >ZnCl2 (aq) + H2 (g)

Cacodyl, which has an intolerable garlicky odor and is used in the manufacture of cacodylic acid, a cotton herbicide, has a mass percentage composition of 22.88% C, 5.76% H, and 71.36% As and a molar mass of 209.96 g/mol.

Which term refers to a substance that is formed in one step of a reaction mechanism and consumed in a subsequent step of the reaction mechanism?

Why is it important to avoid consuming sugar?

Define thermometer and degree

Which term best describes the type of bonding in magnesium chloride

This equation indicates that the reaction gives off heat. What is this type of reaction called? 2C4H10 + ? O2? 8CO2 + 10H2O + heat a. an exothermic reaction b. an endothermic reaction c. absorption reaction d. precipitation reaction

Given the balanced equation representing a reaction: C3H8 (g) + 5O2 (g) = = >3CO2 (g) + 4H2O (g) What is the total number of moles of O2 (g) required for the complete combustion of 1.5 moles of C3H8 (g) ? (1) 0.30 mol (3) 4.5 mol (2) 1.5 mol (4) 7.

What increases in equal steps of one from left to right in the Periodic Table for the elements lithium to neon?

The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the following ways is a puffin dependent upon salmon? A. Puffins have a commensalistic relationship with salmon. B.