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
Verizon [17]
2 years ago
6

If a student measured an object's density to be 2.70 g/mL, 2.32 g/mL, 2.12 g/mL and 3.88, then his results would considered ____

__The object's actual density is 3.50 g/mL A. Accurate and precise B.Precise but not accurate C. Neither accurate nor precise D.Accurate but precise
Chemistry
1 answer:
ValentinkaMS [17]2 years ago
5 0

Answer:

C. Neither accurate nor precise

Explanation:

  • The student's results would be considered precise if they were close to one another. However they vary significantly from one another.
  • Regarding accuracy, they would be considered accurate if they were close to the actual value. The given results are too far away from the actual value.

Thus the results are neither accurate nor precise.

You might be interested in
All of the following are true regarding alcoholic fermentation, except that alcoholic fermentation
guapka [62]
<span>A. produces as much energy as cell respiration.</span>
4 0
3 years ago
A sample of concrete contains cement, gravel, crushed rocks, sand, and water. Each of these contains different metals and minera
Zepler [3.9K]

As the concrete has cement, gravel, crushed rocks, sand, and water of different physical state and can be separated by physical methods hence it should be called as a mixture.

As the components have significant physical boundaries which clearly identify their presence, the mixture is heterogeneous and not homogeneous.

Thus this is a concrete is a heterogeneous mixture of cement, gravel, crushed rocks, sand, and water

8 0
3 years ago
Which statement accurately compares the trends in atomic number and atomic mass in the periodic table?
Dmitriy789 [7]

The answer is , C. Both the atomic mass and the atomic number increase from left to right .

7 0
3 years ago
Read 2 more answers
How does a ketone react with PCl5?,
Reptile [31]

When ketone is reacted with phosphorous pentachloride, chlorination takes place at the carbonyl carbon with substitution of the oxygen atom to give a geminal dichloride (with 2 Cl atoms on same carbon) according to the following equation: 

so we can say that acetone is converted into 2,2-dichloropropane by action of PCl₅

<span />

7 0
3 years ago
Which of the following pairs of reactants will react together to produce water (H2O) as one of the products?
Rainbow [258]
1) <span>NaNO3 and H2O - no reaction , it is dissolution
2) no hydrogen to make water
3) </span><span>Fe(OH)3 (base) and H2SO4(acid)) 
base +acid ----> salt +water
4) </span><span>Li2O and Ba(OH)2
basic oxide and base ----> no reaction

so Answer number 3)
</span> 2Fe(OH)3 +3 H2SO4 ------>   Fe2(SO4)3 + 6H2O<span>

</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Electrons spill in shells in the nucleous the closest shell (n=1) can contain the maximum of. Electrons
    9·1 answer
  • According to Newton’s first law of morion when will an object at rest begin to move?
    12·1 answer
  • which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
    11·2 answers
  • In addition to serving individual customers, other companies, and the government, who do many workers in this cluster provide se
    15·2 answers
  • The value for Ψ in root tissue was found to be -3.3 bars. If you place the root tissue in a 0.1 M solution of sucrose at 20°C in
    5·1 answer
  • ANAL0387: Percent Water in a Hydrate
    11·1 answer
  • ASAP , 8.81 g Carbon
    14·1 answer
  • what is the change in freezing point of a 1.75 molal solution of nacl in water? the kf for water is 1.86 degrees c/m.
    6·2 answers
  • How do you determine how many molecules are in a chemical equation
    15·1 answer
  • Asteroids are mostly made up of which of the following? Select the two correct
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!