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
cricket20 [7]
3 years ago
12

Two students (X and Y) measured the diameter of a gold coin four

Chemistry
1 answer:
Eddi Din [679]3 years ago
8 0

Explanation:

To solve this problem, we need to understand the concept of precision and accuracy.

Through this understanding we apply to solve this problem.

  • Precision is the ability to reproduce the same set of values in an experiment.
  • Accuracy is the nearness or closeness of the measured value to the true value.

For example; if the true value is 28.0mm and the following readings were made:

        A  =  24.0mm, 24.0mm, 24.3mm, 23.9mm  This is a precise measurement but not accurate.

      B  =  27.9mm, 28.0mm, 28.1mm:  This is an accurate measurement because it is close to the true value.

You might be interested in
If volume is increased, the number of<br> collisions per second
frutty [35]

Answer:

Decreases

Explanation:

The particles have more space to move and will be less likely to collide.

5 0
3 years ago
Can someone help me, please?
DENIUS [597]
The answer to this question is: B) 3+
7 0
3 years ago
Read 2 more answers
What is the capillary rise of ethanol in a glass tube with a 0.1 mm radius if the surface tension of ethanol is 0.032Jm2 and the
sweet [91]

Answer: The capillary rise(h) in the glass tube is = 0.009m

Explanation:

Using the equation

h = 2Tcosθ/rpg

Given

Contact angle, θ = Zero

h = height of the glass tube=?

T = surface tension = 0.032J/m^2

r = radius of the tube = 0.1mm =0.0001m

p= density of ethanol = 0.71g/cm^3

g= 9.8m/s^2

h = (2 * 0.032 * cos 0)/( 710*9.8*0.0001)

h= 0.09m

Therefore the capillary rise in the tube is 0.09m

5 0
3 years ago
Question
Black_prince [1.1K]

Answer:

efef2w

Explanation:

7 0
2 years ago
Which one of the following compounds produces a basic solution when
JulsSmile [24]

Answer:

Rb2O

Explanation:

6 0
2 years ago
Other questions:
  • What do all decomposition reactions have in common? (My answer: D, correct?)
    13·2 answers
  • The diagram below shows some subatomic particles.
    5·2 answers
  • PLEASE ANSWER ASAP!!
    15·1 answer
  • A balloon filled with helium gas occupies 2.50 L at 25°C and 1.00 atm. When released, it rises to an altitude where the temperat
    12·1 answer
  • When working with chemicals, many pieces of safety equipment need to be available in case of an emergency. Prior to beginning hi
    9·2 answers
  • Aluminium oxide has a very high melting point (2072 degrees C) while carbon dioxide has a very low boiling point (-57 degrees C)
    15·1 answer
  • A reaction which forms a gaseous product is an example of a(n)_______
    9·1 answer
  • Based on the electron configuration of the two atoms, predict the ratio of metal cationic (+) atom to nonmetal anionic (-) atom
    7·1 answer
  • How many grams of water will I obtain from the combustion of 0.9249 mol of pentane (C5H12) in the following reaction?
    8·2 answers
  • A 0. 462 g sample of a monoprotic acid is dissolved in water and titrated with 0. 180 m koh. what is the molar mass of the acid
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!