2nd Six Weeks Test (fall '23)

How many centimeters are in 5.5 meters?

• 505

• 500.5

• 500

• 550

My dog Sandy weighs 16 kilograms. How much does she weigh in grams?

• 16000

• 1600

• 160

• 1.6

How many molecules are in 2.5 mol of NaCl?

• 1.50 x10²⁴ molecules

• 1.50 molecules

• 4.15 molecules

• 1.51 x10²⁴ molecules

How many moles are in 19.82 g Mg?

• 1.23 mol Mg

• 481.70 mol Mg

• 1.00 mol Mg

• 0.82 mol Mg

Calculate the number of atoms in 0.0340 g Zn.

• 5.200 x 10^-4 atoms Zn
• 3.130 x 10²³ atoms Zn
• 3.130 x 10²⁰ atoms Zn
• 1 atom Zn

What is the molar mass of PbSO₄

• 303.3 g/mol
• 294.7g/mol
• 163.8g/mol
• 372g/mol

Write the name of the following compound: CaSO₄

Write the name of the following compound: Ba₃P₂

What is the formula of the following compound: ammonium phosphate

What is the formula of the following compound: trisulfur pentafluoride