Question 1:

How would you classify sugar?

Question 2:

The correct number of significant figures in the number 1.250100 is:

Question 3:

Suppose a thermometer has marks at every one degree incrememnt and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks. We should properly report the temperature measurement as

Question 4:

A fictional element has two isotopes, each making up 50% of the population. Isotope one has a mass of 80.0 amu, isotope 2 has a mass of 85.0 amu. Calculate the atomic mass of the fictional element.

Question 5:

All of the following statements about different elements are true EXCEPT

Question 7:

A lead ball has a mass of 55.0g and a density of 11.4g/cm³. What is the volume of the ball "

Question 8:

Which of the folling statements about iions is INCORRECT

Question 9:

What is the correct symbol for mercury

Question 10:

Which of the following is NOT an example of a physical property

Question 11:

Which state of matter has atomic spacing that is close together and definite shape

Question 12:

Which of the following statements about the nature of electrical charge is FALSE

Question 13:

Which of the following statements about physical and chemical changes is FALSE

Question 14:

The distance from New York City ot Washington, DC is approximately 235 miles. Identify the correct solution map to convert from miles to kilometers using the prefix mulitpliers and the given conversion factors: 1 mile = 5380 ft; 1 ft = 12 in; i in = 2.54 cm."

Question 15:

Which of the following elements has only 12 protons

Question 16:

The key to success in chemistry is

Question 17:

An atom that has athe same number of neutrons as ¹³⁸₅₆Ba is

Question 18:

The names of the elements whose symbols are Si, P, Mn, and S are respectively

Question 19:

How many inches are in 6.32 cm

Question 21:

In the number 48.93, which digit is estimated

Question 22:

How many neutrons are present in C-14

Question 23:

The correct decimal representation of 1.201 x 10_-7 is

Question 24:

The boiling point of water is

(1) 212 deg F
(2) 0 deg C
(3) 373 K

Question 25:

Which of the following items does NOT contain chemicals

Question 26:

A plastic block has dimensions of 2.2 cm x 3.0 cm x 1.5 cm and a mass of 12.4 grams. Will the block float in water (density = 1.0 g/mL) and why? Hint: use the relationship between mL and cm₃

Question 27:

A fictional element named Nivadium is found to have three naturally occurring isotopes with the natural abundances shown here

MASS (amu)	ABUNDANCE
22.1760	45.00%
23.1847	45.00%
24.1934	10.00%

The calculated atomic mass of Nivadium is":

Question 28:

How many kilojoules are there in 95.0 Calories

Question 29:

Which of the following would NOT be considered a correct conversion factor

Question 30:

The distacne between the two hydrogen atoms in a molecule of water is 0.000000000172m. Express this distance in scientific notation

Question 31:

An American nickel five cent coin has a mass of approximately 5 grams. Five grams is equivalent to which term

Question 32:

Which of the following items is a pure substance

Question 33:

What is the charge on the ion formed by aluminum

Question 34:

What is the value of 335 K on the Celsius temperature scale

Question 35:

Determine the answer for the equeation below with correct number of significant figures
3.125 x 13.2 / 0.218 = _______

Question 36:

An atom containing 7 protons, 8 neutrons, and 7 electrons

Question 37:

The Olympic Games shot put field event uses a 16 pound (lb) shot. Identify the correct solution map to convert from pounds to kilograms using prefix multipliers and the given conversions of 16 oz = 1 lb and 453.6 g = 16 oz

Question 38:

Determine the answer to the following equation with correct number of significant figures
2.02 + 8.102 - 0.0297 = __________

Question 39:

What is the value of 98 degrees F in units of degrees C

Question 40:

When the value 4.449 is rounded to two significant figures, the number should be reported as

Question 41:

The correct scientific notation for the number 500.0 is

Question 42:

Which of the folloiwng items is a chemical property

Question 43:

Determine the answer to the following equation with correct number of significant figures:
(4.123 x 0.12) + 24.2 = __________

Question 44:

How would you classify salt water

Question 45:

How would you classify salt water

Question 46:

A pure substance is

Question 47:

How many liters are in 333 mL? Hint: mL is milliliter

Question 48:

How many grams are in 1.48 x 10⁷ µg? µg is microgram

Question 49:

How many significant digits should be reported in the answer to the following calculation
(4.3 - 3.7) x 12.3 = _______

Question 50:

Which one of the following is a main-group element

Question 51:

Which statement would NOT be an example of 'qantification'

Question 52:

Mg is a member of which family

Question 53:

How many calories are there in a 255 Calorie snack bar