SI Units
Density
Conversions Between Units
Atoms
Name that Element
100

Symbol for grams

g

100

(a) What is the mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3?

81.6g

100

(a) 612 g = ________ mg

612,000mg

100

(a) the ion with a 1+ charge, atomic number 55, and mass number 133

133Cs+

100

I’m the lightest element in the universe, and I fuel the sun.

hydrogen

200

"L" is the symbol that represents

Liters

200

(b) What is the mass of 25.0 mL octane, density = 0.702 g/cm3?

17.6g

200

(b) 8.160 m = ________ cm

816.0cm

200

(b) the ion with 54 electrons, 53 protons, and 74 neutrons

127I−

200

You’ll find me in bananas, and I help keep your muscles working.

potassium
300

Symbol for kilometers

km

300

(a) What is the volume of 25 g iodine, density = 4.93 g/cm3?

5.07cm3

300

(d) 781 mL = ________ L

0.781L

300

(d) the ion with 24 electrons, 30 neutrons, and a 3+ charge

57Co3+

300

My symbol is Fe, and I’m what makes your blood red.

iron

400

The Si Unit for temperature

Kelvin

400

(b) What is the volume of 3.28 g gaseous hydrogen, density = 0.089 g/L?

36.9L

400

(f) 27.8 m = ________ km

0.0278km

400

(a) the ion with a 3+ charge, 28 electrons, and a mass number of 71

71Ga3+

400

I’m used to disinfect pools, and my atomic number is 17.

chlorine

500

One "mole" is represented by this constant

6.02x10^23

500

A block of wood has a mass of 120 g and a volume of 150 cm³. What is the density of the wood?

0.80g/cm3

500

(i) 1.9 Gg = ________ g

1,900,000,000g

500

(c) the ion with 86 electrons, 142 neutrons, and a 4+ charge

232Th4+

500

I'm a radioactive metal named after a planet, and my atomic number is 92.

uranium