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
Lunna [17]
3 years ago
15

students calculated the circumference of a globe to be 60.0 cm. The actual circumference of the glide is 63 cm. The percent devi

ation of the students calculation was. 1. 0.48% 2. 2.8% 3. 5.0% 4. 21%

Chemistry
2 answers:
Brrunno [24]3 years ago
7 0

<u>Answer:</u> The correct answer is Option 2.

<u>Explanation:</u>

To calculate the percentage error, we use the equation:

\%\text{ error}=\frac{|\text{Experimental value - Actual value}|}{\text{Actual value}}\times 100

We are given:

Experimental value of circumference = 60.0 cm

Actual value of circumference = 63 cm

Putting values in above equation, we get:

\%\text{ error}=\frac{|60.0-63|}{63}\times 100\\\\\%\text{ error}=4.8\%

Hence, the correct answer is Option 2.

Naily [24]3 years ago
6 0
#2. Percent error (or deviation) is calculated as ((TV-EV)/EV))*100
You might be interested in
Which of the following is the balanced equation for the
NNADVOKAT [17]
A.) is the answer =)
6 0
3 years ago
What is the mass of 3.0 x x times 10^23 atoms of neon?
Sladkaya [172]

Answer:

10.09 grams

Explanation:

First you need to know the number of moles you are dealing with.

If you know that each mole has 6.022x10²³ of something (in this case of atoms), you can divide 3x10²³ atoms of neons by 6.022x10²³ to obtain the number of moles.

You have 0.5 moles of Neon, so then by the periodic table, you see that the molar mass of neon is 20.18g/mol, so by each mole you have 20.18 grams of neon. Multiply 20.18 grams by 0.5 moles and you got 10.09 grams of Neon

7 0
2 years ago
the atomic number of four elements p,q,r,s are 6,8,10 and 12 respectively. the two elements which can bond ionically are:
denis-greek [22]

Answer:

The atomic numbers of four elements A, B, C, and D are 6,8,10, and 12 respectively. The two elements which can react to form ionic bonds (or ionic compounds) are B (8= 2,6) and D (12 =2,8,2). So D donates its two electrons to B to fulfill their octet.

Explanation:

6 0
2 years ago
What are the relationships between melting and freezing of a mixture
Kaylis [27]
The temperature is the same but the heat flow is the opposite.
4 0
3 years ago
In a covalent bond, the electrons are _____
Ivenika [448]

Explanation:

In a covalent bond the electrons are simultaneously attracted by the two atomic nuclei.

6 0
2 years ago
Read 2 more answers
Other questions:
  • It is possible for a particular element to have various number of neutrons
    14·1 answer
  • An empty 10 ml volumetric flask weighs 10.2634 g. when filled to the mark with distilled water and weighed again in the air at 2
    12·2 answers
  • A solution of NaCl has a concentration of 1.50 M. The density of the solution is 1.06 g/mL. What is the concentration solution b
    15·2 answers
  • By measuring the distance from the crest of one wave to the crest of another we will know the _____ of the light.
    9·1 answer
  • True or false adding a solute to a solvent will raise the freezing point of the solvent.
    11·1 answer
  • Gas laws describe and predict the behavior of gases without attempting to explain why they happen.
    7·1 answer
  • Which option describes the most cost-effective way for a skateboard company to purchase plywood?
    6·2 answers
  • What is an elementary reaction? 3.5. Given the reaction 2NO, + 1/202 = N,Os, what is the relationship between the rates of forma
    9·1 answer
  • Read the scenario.
    7·1 answer
  • Help Please! its another cell functions
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!