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
levacccp [35]
3 years ago
7

What is the density of the mass is 84 g and the volume is 34 ml?

Chemistry
1 answer:
marin [14]3 years ago
3 0
Density
=mass÷vol
=84÷34
=2.47 g/mL
You might be interested in
Phosphorus-32 has a half-life of 14.3 days. how many grams of phosphorus-32 remain after 71.5 days if you start with 4.00 grams?
almond37 [142]
Answer : 0.125 g

Explanation : If you are calculating the half life of P-32 which has half life of 14.3 days and you want to calculate how many grams are remaining after 71.3 days if yo are starting with 4 g?

starting you can calculate the number of half life P-32 undergoes first,

which is  n = 71.5 / 14.3 = 5 days.

now, to calculate the remaining mass,

m_{remaining}  = (\frac{initial mass}{2 X 2X 2X2 X2 } ) = (\frac{initial mass}{ 2^{5} } )

= = \frac{4 g }{ 2^{5} } = 0.125 g
7 0
3 years ago
What type of change occurs when water changes from a solid to a liquid? A. a phase change B. a physical change C. an irreversibl
mars1129 [50]
B, a physical change because it is not destroying the substance.
3 0
3 years ago
Convert 1.05 x 1026 molecules Ni to number of moles.
vodka [1.7K]

Answer:

1077.3 molecular in 1.05*1026 molecules

4 0
3 years ago
Why are supergiant so bright?
Yuliya22 [10]

Because supergiants are so massive, the core temperature gets much hotter than in giants, so supergiants can fuse elements heavier than hydrogen and helium. But to support their tremendous mass, supergiants burn up their fuel much more quickly.

5 0
3 years ago
Read 2 more answers
Which pair of atoms forms a nonpolar covalent bond? which pair of atoms forms a nonpolar covalent bond? na and cl c and o n and
adelina 88 [10]

Types of Bonds can be predicted by calculating the difference in electronegativity.

If, Electronegativity difference is,

 

                Less than 0.4 then it is Non Polar Covalent

                

                Between 0.4 and 1.7 then it is Polar Covalent 

            

                Greater than 1.7 then it is Ionic

 

For Na and Cl,

                    E.N of Chlorine       =   3.16

                    E.N of Sodium        =   0.93

                                                   ________

                    E.N Difference             2.23          (Ionic Bond)


For C and O,

                    E.N of Oxygen       =   3.44

                    E.N of Carbon        =   2.55

                                                   ________

                    E.N Difference             0.89          (Polar Covalent Bond)


For N and Cl,

                    E.N of Chlorine      =   3.16

                    E.N of Notrogen     =   3.04

                                                   ________

                    E.N Difference             0.12           (Non-Polar Covalent Bond)


For B and O,

                    E.N of Oxygen        =   3.44

                    E.N of Boron           =   2.04

                                                   ________

                    E.N Difference             1.40          (Polar Covalent Bond)

8 0
4 years ago
Read 2 more answers
Other questions:
  • If 12.8 g lead(II) sulfate (303.3 g/mol) precipitates when excess potassium chloride is added to 1.65 L of a water sample, what
    5·1 answer
  • you are heating a solution and recording its temperature every 2 min during an experiment. which is your independent variable an
    12·1 answer
  • A student is instructed to make 1 L of a 2.0 M solution of CaCl2 using dry salt. How should he do this?
    15·1 answer
  • Why are hypotheses and theories are always tentative explanations?
    8·1 answer
  • If the absolute temperature of a sample of gas in a glass jar is decreased by a factor of two, how would the pressure of the gas
    15·2 answers
  • Write structural formulas for all of the possible structural isomers of n -hexene that can be formed by moving the position of t
    11·1 answer
  • I WILL GIVE YOU 20 PTS which of the following is true? A.water is an impact to an organisms. B.Some substances must be dissolved
    8·2 answers
  • A gas with a volume of 4 liters is allowed to expand to a volume of 12 liters. What happens to the pressure in the container if
    9·1 answer
  • If you have a volume of 10.5 mL and a mass of 100. kg, what is the density?
    7·2 answers
  • If an atom gains or loses electrons it becomes a
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!