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
umka21 [38]
3 years ago
9

An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% ab

undant. What is the average atomic mass? What element is it?
Chemistry
1 answer:
qwelly [4]3 years ago
5 0

Answer:

10.81, Boron

Explanation:

I love the explanation Khan Academy gives.

You might be interested in
Which of the following is NOT a product of photosynthesis?
ryzh [129]

B is the answer..............

3 0
3 years ago
Read 2 more answers
The formula K2S indicates that:
sattari [20]
The answer is C. there are two potassium ions for each ion of sulfur
4 0
3 years ago
The energy and state changes that occur when freezing rain falls and solidfies on a wire fence
Alex787 [66]

Freezing rain is the term given to the precipitation of the rain sustained at temperatures below freezing by the ambient air mass, which results in freezing on encountering with the surfaces. Freezing rain is formed completely of liquid droplets, unlike sleet, ice pellets, or hail.  

The freezing rain falls and solidifies on a wire fence as the rain is changing from a liquid to a solid state by withdrawing thermal energy, ultimately resulting in freezing.  


6 0
3 years ago
Read 2 more answers
Which of the following statements is NOT a part of John Dalton's atomic theory?
Goshia [24]

The statement that is NOT a part of John Dalton's atomic theory Electrons move in specific orbits around the nucleus of an atom. The statements ‘All elements are composed of atoms that cannot be divided’, ‘All atoms of the same element are exactly alike and have the same mass’ and ‘Every compound is composed of atoms of different elements, combined in a specific ratio’ are not his theory.

7 0
3 years ago
Part d based on your answer to part c, how many bonding electrons and lone pair electrons (nonbonding electrons) are there in th
elena55 [62]
The Lewis Structure of HCN is shown below,

Number of Bonding Electrons:
                                               In HCN Hydrogen is bonded to Carbon through single bond and Nitrogen is bonded to Carbon through Triple Bond. Single bond is formed by two bonding electrons, while, triple bond is formed by six bonding electrons, Hence,

                               Number of Bonding Electrons  =  8

Number of Non-Bonding Electrons:
                                                            In HCN there is only one lone pair of electron present on Nitrogen atom which is not taking part in bonding. Hence, 
                              Number of Non-Bonding Electrons  =  2

Result:

                               Number of Bonding Electrons  =  8

                              Number of Non-Bonding Electrons  =  2

3 0
3 years ago
Other questions:
  • What are steps to solving stoichiomerty problems?
    9·1 answer
  • 20 pts!!! What are the missing coefficients needed to make this equation balanced from left to right?
    6·1 answer
  • A chemist adds of a M barium chlorate solution to a reaction flask. Calculate the mass in grams of barium chlorate the chemist h
    5·1 answer
  • What molecule does oxygen gas bond with in the bloodstream of a human
    13·1 answer
  • Need answer now! 100 points
    11·2 answers
  • 1.25 x 1025 molecules of glucose (C H202) is<br> how many moles of glucose?
    11·1 answer
  • Use the following information to calculate the concentration, Ka and pka for an unknown monoprotic weak acid. (8 pts.) 20.00 mL
    9·1 answer
  • Think about a stalk of corn. You can see it has roots, a stalk, and leaves. You know it reproduces with pollen from the tassels
    15·1 answer
  • Please help! Picture is provided.
    7·2 answers
  • Which observation most likely indicates that only a chemical change has taken place
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!