Chemistry final review first semester

What are the coefficients that will balance the skeleton equation below?

AlCl₃ + NaOH → Al(OH)₃ + NaCl

• 1,3,1,3

• 3,1,3,1

• 1,1,1,3

• 1,3,3,1

Tags

NGSS.MS-PS1-5

What is the name of H₂SO₄?

• hyposulfuric acid

• hydrosulfuric acid

• sulfuric acid

• sulfurous acid

Which of the following shows both the correct formula and correct name of an acid?

• HClO₂, chloric acid

• HNO₂, hydronitrous acid

• H₃PO₄, phosphoric acid

• HI, iodic acid

Return all unused chemicals to their original containers.

• True

• False

Approved eye protection devices (goggles) are worn in the laboratory

• to avoid eye strain.

• to improve your vision.

• only if you don't have corrective glasses.

• any time chemicals, heat, or glassware are used.

Which element is common to all acids?

• Hydrogen

• Oxygen

• Carbon dioxide

• Helium

400 grams =____kilograms

• 0.4kg

• 4kg

• 40kg

• 40,000kg

How many yards are equal to 252 inches?

• 21
• 12
• 9
• 7

Determine the number of significant digits of 0.0080500

• 2

• 3

• 8

• 5

• 54.46

• 54.4

• 54.5

• 54