STRAIGHTERLINE CHEMISTRY FINAL EXAM / ALREADY PASSED 100%
ACCURATE/ 320 QUESTIONS / LATEST 2024
1. What is the term used for findings that are summarized based on a pattern or trend?
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction: a. Law
2. Which of the following is a tentative explanation for a set of observations? Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction: b. Hypothesis
3. If a liquid contains 60% sugar and 40% water throughout its composition then what is
it called?
Select
one:
a. Solute
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent: c. Homogeneous mixture
4. Which of the following does not have a uniform composition throughout? Select one:
a. Element
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent: d. Heterogeneous mixture
5. Which one of these represents a physical change?
Select one:
a. Water, when heated, forms steam.
b. Bleach turns hair yellow.
c. Sugar, when heated, becomes brown.
d. Milk turns sour.
e. Apples, when exposed to air, turn brown.: a. Water, when heated, forms steam.
,6. How many micrograms are in 65.3 kg?
Select
one:
a.0.653g
¼
b. 6.53 × 107 g¼
c. 6.53 × 104 g¼
d. 6.53 × 10-8 ¼g
e. 6.53 × 1010 g¼: e. 6.53 × 1010 g¼
7. A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0
millimeters (depth). What is the volume of the smart phone in cubic centimeters? (1 in =
2.54 cm) select one:
a. 58 cm3
b. 1.7 x 105 cm3
c. 90 cm3
d. 3.4 cm3
e. 34 cm3: a. 58 cm3
8. Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to select
one:
a. 16.4 in3
b. 6.45 in3
c. 0.394 in3
d. 0.155 in3
e. 0.0610 in3: e. 0.0610 in3
9. What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12
atom?
Select one:
a. Isotope number
b. Mass number
c. Mass-to-charge ratio
d. Atomic number
e. Atomic mass unit: e. Atomic mass unit
10. How many neutrons are there in an atom of lead whose mass number is 208?
Select
one:
a. 82
b. 126
, .
c. 208
d. 290
e. None of them: b. 126
11 which of these elements is chemically similar to magnesium?
Select
one:
a. Sulfur
b. Calcium
c. Iron
d. Nickel
e. Potassium: b. Calcium
12. C(graphite) and c(diamond) are examples of:
Select one:
a. Isotopes of carbon.
b. Allotropes of carbon.
c. The law of definite proportions.
d. Different carbon ions.: b. Allotropes of carbon.
13. The 80br- ion has
Select one:
a. 45 protons, 35 neutrons, 45 electrons.
b. 35 protons, 45 neutrons, 34 electrons.
c. 35 protons, 45 neutrons, 36 electrons.
d. 45 protons, 35 neutrons, 46 electrons.
e. 35 protons, 45 neutrons, 46 electrons.: e. 35 protons, 45 neutrons, 46 electrons.
14. The formula for sodium sulfide is
select one:
a. Nas
b. K2s
c. Nas2
d. Na2s
e. Ses: d. Na2s
15. Which one of the following formulas of ionic compounds is the least likely to be
correct?
Select
one:
a. Nh4cl
, b. Ba(oh)2
c. Na2so4
d. Ca2no3
e. Cu(cn)2: d. Ca2no3
ACCURATE/ 320 QUESTIONS / LATEST 2024
1. What is the term used for findings that are summarized based on a pattern or trend?
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction: a. Law
2. Which of the following is a tentative explanation for a set of observations? Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction: b. Hypothesis
3. If a liquid contains 60% sugar and 40% water throughout its composition then what is
it called?
Select
one:
a. Solute
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent: c. Homogeneous mixture
4. Which of the following does not have a uniform composition throughout? Select one:
a. Element
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent: d. Heterogeneous mixture
5. Which one of these represents a physical change?
Select one:
a. Water, when heated, forms steam.
b. Bleach turns hair yellow.
c. Sugar, when heated, becomes brown.
d. Milk turns sour.
e. Apples, when exposed to air, turn brown.: a. Water, when heated, forms steam.
,6. How many micrograms are in 65.3 kg?
Select
one:
a.0.653g
¼
b. 6.53 × 107 g¼
c. 6.53 × 104 g¼
d. 6.53 × 10-8 ¼g
e. 6.53 × 1010 g¼: e. 6.53 × 1010 g¼
7. A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0
millimeters (depth). What is the volume of the smart phone in cubic centimeters? (1 in =
2.54 cm) select one:
a. 58 cm3
b. 1.7 x 105 cm3
c. 90 cm3
d. 3.4 cm3
e. 34 cm3: a. 58 cm3
8. Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to select
one:
a. 16.4 in3
b. 6.45 in3
c. 0.394 in3
d. 0.155 in3
e. 0.0610 in3: e. 0.0610 in3
9. What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12
atom?
Select one:
a. Isotope number
b. Mass number
c. Mass-to-charge ratio
d. Atomic number
e. Atomic mass unit: e. Atomic mass unit
10. How many neutrons are there in an atom of lead whose mass number is 208?
Select
one:
a. 82
b. 126
, .
c. 208
d. 290
e. None of them: b. 126
11 which of these elements is chemically similar to magnesium?
Select
one:
a. Sulfur
b. Calcium
c. Iron
d. Nickel
e. Potassium: b. Calcium
12. C(graphite) and c(diamond) are examples of:
Select one:
a. Isotopes of carbon.
b. Allotropes of carbon.
c. The law of definite proportions.
d. Different carbon ions.: b. Allotropes of carbon.
13. The 80br- ion has
Select one:
a. 45 protons, 35 neutrons, 45 electrons.
b. 35 protons, 45 neutrons, 34 electrons.
c. 35 protons, 45 neutrons, 36 electrons.
d. 45 protons, 35 neutrons, 46 electrons.
e. 35 protons, 45 neutrons, 46 electrons.: e. 35 protons, 45 neutrons, 46 electrons.
14. The formula for sodium sulfide is
select one:
a. Nas
b. K2s
c. Nas2
d. Na2s
e. Ses: d. Na2s
15. Which one of the following formulas of ionic compounds is the least likely to be
correct?
Select
one:
a. Nh4cl
, b. Ba(oh)2
c. Na2so4
d. Ca2no3
e. Cu(cn)2: d. Ca2no3
