FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 1: Matter, Measurements, and Calculations

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 41

Multiple Choice

Review LaterAdd Note

Review Later

Which of the following is a chemical property of matter?

A) color
B) density
C) freezing point
D) flammability

E) A) and B)
F) A) and C)

Correct Answer

verified

Show Answer

Question 42

Multiple Choice

Review LaterAdd Note

Review Later

One system of rating food is to determine its energy density in kcal\g.  If your 200 g snack contains 100 g fat (900 cal\g) and  a total of 100 g of protein and carbohydrates (400 cal\gram) .  What is its energy density?

A) 1.3 kcal\g
B) 6.5 kcal\g
C) 9.0 kcal\g
D) 13 kcal\g

E) A) and B)
F) All of the above

Correct Answer

verified

Show Answer

Question 43

Multiple Choice

Review LaterAdd Note

Express the following "generic" number in standard notation.    X.XX × 10⁴

The fact that gold does not corrode is a ______ property

Henna is a hair coloring that causes a permanent change in color until the hair grows out. Henna is regulated as both a drug and a cosmetic because the change is permanent.

A sample of urine is measured to have the density of 1.15 g\mL which is an indicator that there may be a medical problem.

Which of the following is a derived unit of the S.I. system?

A monoatomic molecule cannot be reduced to a simpler chemical.

Body density can be used to determine the amount of fat carried by an individual because the density of muscle is greater than that of fat.

Which number has the greatest number of significant digits?

Match the types of molecules with their descriptions.

Table salt, NaCl is best classified as a(n) _____ .

Which of the following is not one of the five key body characteristics that provide a good assessment of a person's overall health?

Convert a temperature of 76 ° F to a Celsius value.

If a 50 gram sample of iron alloy contains 40 grams if iron, it contains 80% iron by weight.

Do the following calculation and express the answer using the correct number of significant figures.   ______ = (342) × (0.0012) ÷ 100.0

If 3333 is divided by 5.0, the answer should have two significant figures.

Which of the following properties is characteristic of a mixture?

On a cold winter day the weather report gives the temperature as -5.0° F.  What would this temperature be if reported on the Kevin scale?

The melting of ice to liquid water is correctly classified as