Extra Credit for DLA & Quizzes/Tests

In chemistry, a "mole" is:

• The mass of an atom
• a large number used to count particles
• based on the volume of a substance

How many atoms of iodine are in a mole of iodine?

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

Tags

NGSS.MS-PS1-1

What is the molar mass of NaCl?

• 58.45g/mol
• 28g/mol
• 12g/mol
• 6.02 x 10²³

We use the periodic table to calculate...

• mass
• molar mass
• moles

Tags

NGSS.HS-PS1-7

What is the molar mass of C₂H₄O₂?

• 40g
• 50g
• 60g
• 68g

Which of these elements has the highest molar mass?

• Hydrogen

• Iron

• Carbonate

• Cobalt

what is the name of CCl₄?

• carbon tetrachloride

• monocarbon tetrachloride

• tetracarbon monochloride

• carbon chloride

What is the name of the compound SO₂

• Monosulfate oxide

• Sulfur Dioxide

• Monosulfur dioxide

What is the name of the compound P₂O₅

• Pentaphosphorus dioxide

• Phoshphide dioxide

• Diphosphorus pentoxide

What is the charge on the calcium ion?

• 1+
• 2+
• 2-
• 1-

Tags

NGSS.HS-PS1-1