1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bogdanovich [222]
3 years ago
14

Which of the following examples illustrates a number that is correctly rounded to three significant figures?

Chemistry
1 answer:
Naily [24]3 years ago
8 0

Answer:

c. 20.0332 g to 20,0 g

Explanation:

A significant figure is each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first non-zero digit, with the exception of the trailing zeros.

<em>Which of the following examples illustrates a number that is correctly rounded to three significant figures? </em>

a. 109 526 g to 109 500 g. NO. The rounded number has 4 significant figures: 109 500.

b. 0.03954 g to 0.040 g. NO. The rounded number has 2 significant figures:  0.040.

c. 20.0332 g to 20.0 g. YES. The rounded number has 3 significant figures:  20.0.

d. 04.05438 g to 4.054 g. NO. The rounded number has 4 significant figures: 4.054.

e. 103.692 g to 103.7g. NO. The rounded number has 4 significant figures: 103.7.

You might be interested in
Chemist preformed Reaction of solid magnesium burning and found that the mass of the magnesium oxide what is greater than the ma
tankabanditka [31]

Answer:

The magnesium reacted with the oxygen in the air.

Explanation:

For argument’s sake, let’s say that the mass of magnesium oxide was 3 g and that of the oxide was 5 g.  

The reaction was

            magnesium + oxygen ⟶ magnesium oxide

Mass:           3 g                                          5 g

Mass of oxygen = 5 g – 3 g = 2 g

The 3 g of magnesium must have combined with 2 g of oxygen to form 5 g of magnesium oxide.

4 0
3 years ago
Particles in a liquid move around just as freely as particles in a solid.
andre [41]
It is false :D I am 95% sure
5 0
2 years ago
Read 2 more answers
Simple machines make work easier. Most simple machines reduce the amount of effort force needed to move an object. This cart has
Kruka [31]
I'm pretty sure it's D
8 0
3 years ago
The image above shows a ______ wave.
Soloha48 [4]

Answer:

longitudinal

Explanation:

the wave travels in the same direction as the movement from the person

8 0
2 years ago
What are the top three sources of the U.S electricity generation?
SVETLANKA909090 [29]

Answer: The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • How many mols is 1433.6 iron atoms
    12·1 answer
  • Determine the mass in grams of each of the following:
    8·1 answer
  • Based on your knowledge of how the greenhouse effect works, why does the level of carbon dioxide affect the global temperature?
    14·2 answers
  • How do different bridge designs react to strong winds?
    12·2 answers
  • In the following compound (HCl) How many electrons are gained and lost by each atom?
    13·1 answer
  • Describe the transfer of thermal energy as the ice cream melts and as it becomes solid again. In both situations, describe which
    6·1 answer
  • The actual yield of a certain reaction is 38.0 g, while the
    11·1 answer
  • Please help I need this Now
    8·1 answer
  • g 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN3) in
    6·1 answer
  • 10 ml of solution of acetic acid is added to 250 ml volumetric flask , the concentration of diluted vinegar is 0.01 M. What is t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!