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
pshichka [43]
3 years ago
14

Boron occurs naturally as two isotopes. What is the difference between these isotopes?

Chemistry
2 answers:
DIA [1.3K]3 years ago
8 0
They have different number of neutrons and different mass number

MArishka [77]3 years ago
4 0

they have different number of neutrons and different mass number


You might be interested in
HURRY GIVING BRAINLIEST......
Dmitry [639]

Answer:

I think Water because it keeps you dehydrated. You will still survive with out any food or any place to live but it's not air i know that for a fact because we need oxygen to live.

Explanation:

hope that helps:) you might can add some more words to it or change it up if you want to.

4 0
2 years ago
In making wine, glucose (C6H12O6) is fermented to produce ethanol (C2H5OH) and carbon dioxide (CO2), according to the following
djyliett [7]

Answer:

a) Theoretical yield of ethanol = 34.778 g

b) % yield of ethanol = 37.38%

Explanation:

a)

C6H12O6 → 2 C2H5OH + 2 CO2

Molar mass of glucose = 180.156 g/mol

Molar mass of ethanol = 46.07 g/mol

amount of glucose taken = 68.0 g

No. of mole = Amount of substance in g/Molar mass

[text]No. of mole = \frac{68.0\;}{180.156\; g/mol} =0.37745 mol[\text]

from reaction stoichiometry, one mole of glucose fermented two form 2 mole of ethanol.

therefore, 0.37745 mol of glucose will form 0.37745*2 moles of ethanol.

No. of moles of ethanol formed = 0.7549 mol

theoretical yield of ethanol = 0.7549 x 46.07 = 34.778 g

b)

\% yield=\frac{Actual yield}{Theoretical yield}\times 100

Actual yield = 13.0 g

Theoretical yield = 34.778 g

\% yield=\frac{13.0 \;g}{34.778\; g}\times 100

                    = 37.38%

4 0
3 years ago
Which of the following is equal to 0.80 mm3?
Gnesinka [82]
Answer is b)))))))))))))
5 0
2 years ago
Calculate the amount, in moles, of 2.5 L of a 5.0 M sulfuric acid, H2SO4.
cricket20 [7]

Answer:

12.5 moles H2SO4

Explanation:

Calculate the amount, in moles, of 2.5 L of a 5.0 M sulfuric acid, H2SO4.

5.0 M means 5 moles per liter.

so in 2.5 L we have

5.0 X 2.25 = 12.5 moles H2SO4

4 0
2 years ago
Please helpsjejhejejejehj​
lilavasa [31]

Answer:

oh i know play fortnite

Explanation:

4 0
3 years ago
Other questions:
  • HELP PLEASE!!!! 15 POINTS!!! HELP!!
    13·2 answers
  • Science Questions
    5·2 answers
  • A cell must work to maintain a stable internal environment. It is also important for the environment around the cell to be stabl
    8·1 answer
  • Potential energy is based on an objects
    13·2 answers
  • Consider the reaction below for which K = 78.2 atm-1. A(g) + B(g) ↔ C(g) Assume that 0.386 mol C(g) is placed in the cylinder re
    13·1 answer
  • A small sack of sand has a density of 1.5 g/cm3 and a mass of 1500 g. How much space (volume) does the sand occupy?
    14·2 answers
  • What is the answer? I’m stuck
    6·2 answers
  • Which of the following chemical equations proves that the law of conservation of mass is in effect?
    10·1 answer
  • 2CuS + 3O2 = 2CuO + 2SO2
    6·1 answer
  • A star is mainly made of hydrogen gas, but most classes of stars include other elements such as helium, calcium, and other heavi
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!