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
yaroslaw [1]
3 years ago
7

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Three different peo

ple weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 g for the mass of the standard. These results imply that the balance that was used is ____. a. accurate b. precise c. accurate and precise d. neither accurate nor precise
Chemistry
2 answers:
Kamila [148]3 years ago
7 0
B) just fount out.....................
melisa1 [442]3 years ago
5 0
The answer is letter B. I hope that helped.<span />
You might be interested in
What volume (in L) will a 32 g sample of butane gas, C4H10(g), occupy at a temperature of 45.0 oC and a pressure of 728 mm Hg?
larisa86 [58]

Answer:

15.0 L

Explanation:

To find the volume, you need to use the Ideal Gas Law:

PV = nRT

In this equation,

-----> P = pressure (mmHg)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas constant (62.36 L*mmHg/mol*K)

-----> T = temperature (K)

To calculate the volume, you need to (1) convert grams C₄H₁₀ to moles (via the molar mass), then (2) convert the temperature from Celsius to Kelvin, and then (3) calculate the volume (via the Ideal Gas Law).

Molar Mass (C₄H₁₀): 4(12.011 g/mol) + 10(1.008 g/mol)

Molar Mass (C₄H₁₀): 58.124 g/mol

32 grams C₄H₁₀              1 moles
-------------------------  x  -----------------------  = 0.551 moles C₄H₁₀
                                    58.124 grams

P = 728 mmHg                      R = 62.36 L*mmHg/mol*K

V = ? L                                    T = 45.0 °C + 273.15 = 318.15 K

n = 0.551 moles

PV = nRT

(728 mmHg)V = (0.551 moles)(62.36 L*mmHg/mol*K)(318.15 K)

(728 mmHg)V = 10922.7632

V = 15.0 L

6 0
1 year ago
Draw the structural formula for fatty acid C 18:2 9 a 12a
qwelly [4]

Answer:

............................................................................

Explanation:

7 0
3 years ago
A single atom is in a balanced electrical state.
slega [8]
I believe the answer is: Protons and Neutrons
Protons weigh 1 amu while neutrons also weigh 1 amu. I’m not sure if they are talking about how many there is.
7 0
3 years ago
Read 2 more answers
What measures are used to calculate the percent by volume of a solution?
Yuliya22 [10]
Titration is the method used.
4 0
3 years ago
Which of the following elements is the smallest?
Gnesinka [82]

Answer:

chlorine

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Lee conducts an experiment to see if mass is conserved when a piece of charcoal is burned for 5.0 minutes. He measures the mass
    12·1 answer
  • How many moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose
    12·1 answer
  • Compare and contrast the compositions of binary ionic and binary molecular compounds
    15·1 answer
  • Identify six elements common to organic compounds.
    6·1 answer
  • What type of reaction is represented by the following chemical equation? Explain your answer. Thanks!:)
    7·1 answer
  • What is the expensive property of a substance
    6·1 answer
  • Lily is doing a science experiment with a substance in a sealed jar. At first,
    10·1 answer
  • Why is burning not a physical change?
    15·2 answers
  • ¿Cuáles son las características de los materiales de laboratorio? Por ejemplo: exactitud, resistencia a la temperatura, etc.
    5·2 answers
  • Solid iron is mixed with a solution of copper (I) nitrate to form iron (III) nitrate solution and metal copper. (what is the equ
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!