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
Alex787 [66]
3 years ago
7

A beach ball has a mass of 5 g and a volume of 20 cm3. What is the object's density?

Chemistry
1 answer:
ivann1987 [24]3 years ago
3 0
Mass = 5 g

volume = 20 cm³

density = mass / volume

therefore:

D = m / V

D = 5 / 20

D = 0.25 g/cm³
You might be interested in
What can be done to remove a magnetic force around an electromagnet
Harrizon [31]
D is to stop the current and the force can be removed
7 0
3 years ago
If there are 40 mol of NBr3 and 48 mol of NaOH, what is the excess reactant
Vanyuwa [196]
<h3>Answer:</h3>

              Excess Reagent =  NBr₃

<h3>Solution:</h3>

The Balance Chemical Equation for the reaction of NBr₃ and NaOH is as follow,

                       2 NBr₃ + 3 NaOH   →   N₂ + 3 NaBr + 3 HBrO

Calculating the Limiting Reagent,

According to Balance equation,

               2 moles NBr₃ reacts with  =  3 moles of NaOH

So,

           40 moles of NBr₃ will react with  =  X moles of NaOH

Solving for X,

                       X  =  (40 mol × 3 mol) ÷ 2 mol

                       X  =  60 mol of NaOH

It means 40 moles of NBr₃ requires 60 moles of NaOH, while we are provided with 48 moles of NaOH which is Limited. Therefore, NaOH is the limiting reagent and will control the yield of products. And NBr₃ is in excess as some of it is left due to complete consumption of NaOH.

6 0
3 years ago
The actual number of pennies in a jar is 218. You miscounted and came up with 215 pennies. What is your percent error?
Katyanochek1 [597]

Answer:

3%

Explanation:

Substract the actual error from the final and multiply by 100

6 0
2 years ago
What is the reason you can smell food cooking even when you're not in
Dmitry_Shevchenko [17]

Answer:

the answer should be A

5 0
2 years ago
Mass is measured in ____________, and weight is measured in ______________. A) kilograms, grams B) grams, kilograms C) newtons,
frez [133]
I'm pretty sure the answer is letter D.
8 0
3 years ago
Read 2 more answers
Other questions:
  • How do I do question C?! Mass to moles
    12·1 answer
  • Draw structures for (a) a chain isomer, (b) a positional isomer, and (c) a functional isomer of hexan-1-ol
    12·1 answer
  • Use the periodic table, find the neutral atom that has the same electron configuration as 1s2 2s2 2p6
    13·1 answer
  • What is a goal of the planned mission MIRI?
    14·2 answers
  • Calculate the number of kilojoules to warm 125 grams of iron from 23.5 degrees Celcius to 78 degrees Celcius
    12·1 answer
  • What similarities and difference exist between electrons and neutrons? Consider charge, size, location and number.
    6·1 answer
  • Which equation shows a physical change?
    9·2 answers
  • Agree or disagree that a scientific theory can be modified provide evidence along!!!!!!!
    13·1 answer
  • The net ionic equation for the reaction of aluminum sulfate and sodium hydroxide
    14·1 answer
  • Correct way for calculating atomic mass
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!