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
andrew-mc [135]
2 years ago
9

If two students in a lab are asked to calculate the density of a block with a mass of 31.0 g; they are not told how many digits

to round their measurements. Student A finds length to be 2 cm width to be 4 cm and height 8 cm. Student B finds the length to be 2.65 cm, width to be 4.20 cm, and height to be 8.35 cm. Do you think their measurements will both be accurate? Why or why not?
Please answer in a complete sentence(s)!
Chemistry
1 answer:
Arada [10]2 years ago
3 0

We can see here that the both measurements are accurate. This is the true because the both values are in the correct number of significant figures.

<h3>What is density?</h3>

The term density has to do with the ratio of the mass to the density of the object. We know that the accuracy of a measurement has a lot to do with the number of significant figures in the measurement. In this case, we are told that two students in a lab are asked to calculate the density of a block with a mass of 31.0 g; they are not told how many digits to round their measurements. Student A finds length to be 2 cm width to be 4 cm and height 8 cm. Student B finds the length to be 2.65 cm, width to be 4.20 cm, and height to be 8.35 cm.

For the first student, the density is obtained as;

Density = mass/ volume

= 31.0 g/ 2 cm * 4 cm *  8 cm

= 0.5 g/cm^3

For the second student;

Density = mass/ volume

= 31.0 g/2.65 cm * 4.20 cm * 8.35 cm

= 0.33 g/cm^3

Learn more about density:brainly.com/question/15164682

#SPJ1

You might be interested in
What number should be placed in front of Fe to balance this chemical
andrew-mc [135]

the answer is B. 2

because there is 2 iron on the right side so you need another two on the left side to balance it out

6 0
3 years ago
What was the hiker's average velocity during part C of the hike?
umka2103 [35]

Answer:

0.13 km/min west

Explanation:

I just did the test.

6 0
3 years ago
What is one property for each of the chemical substances listed above?
Vilka [71]
1. Acetic acid (Ethanoic acid) is a colorless liquid.

2. Sodium Bicarbonate is an odorless, crystalline powder.

3. Carbon dioxide is a colorless gas.

4. Dihydrogen monoxide is colorless and odorless gas.

5. Sodium acetate is very soluble in water.

6. Calcium chloride has an exothermic reaction when dissolved in water.

7. Calcium carbonate is also an odorless powder.

8. Sodium chloride is soluble in water, and partially soluble (or insoluble) in other liquids.

Hope this helps! (:
8 0
3 years ago
What volume (cm​ 3​ ) would 9.0 grams of aluminum occupy? Density is 2.7 g/cm​ 3​ . Show your work
saul85 [17]

Answer:

3.3 cm³

Explanation:

Use the density formula, d = m/v, to solve for the volume:

2.7 = 9.0/v

2.7v = 9.0

v = 3.3 cm³

5 0
4 years ago
You determine that your compound is soluble in the acetone, but not the water, aqueous hydrochloric acid or aqueous sodium hydro
Alborosie

Answer:

The answer to your question is organic or non polar compound.

Explanation:

Acetone is an organic compound then it's organic and one characteristic of these compounds is that they are non polar.

Water, aqueous hydrochloric acid and aqueous sodium chloride are inorganic and they are polar, they dissolve compounds similar to them, inorganic and polar compounds.

3 0
3 years ago
Other questions:
  • The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the fo
    13·1 answer
  • For an experiment, a biology student makes 1 liter of a solution containing the following substances, which are shown in the tab
    5·1 answer
  • Why are some substances not able to dissolve in water?
    5·2 answers
  • Which reactions are single displacement reactions? 2NaBr + CaF2 → 2NaF + CaBr2 SnO2 + 2H2 → Sn + 2H2O 4Na + O2 → 2Na2O 2KClO3 →
    13·1 answer
  • Which is another name for groups of elements?<br> actinides<br> families<br> halogens<br> periods
    10·2 answers
  • What happens to blood cells if there is too much sugar in the blood stream?
    14·1 answer
  • PLEASE HELPP<br> Tell me everything you know about "balancing the equation" for science
    11·1 answer
  • 4. Scientists are studying photosynthesis in a forest ecosystem that has plants, animals, and
    10·1 answer
  • What will happen to the atoms or sbstance when it freezes<br>​
    11·2 answers
  • What is the molarity of a solution prepared by dissolving 30.0 grams of NaOH in enough water to make a solution with a total vol
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!