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
SVEN [57.7K]
2 years ago
6

All atoms of a given element must contain the same number of

Chemistry
1 answer:
morpeh [17]2 years ago
7 0
B! neutrons. help that helped!
You might be interested in
What is the percentage composition when 10g of magnesium combines with 4g of nitrogen?
Ivanshal [37]
The %  composition   when 10g of magnesium combine   with  4g of   nitrogen  is  71.43%   magnesium   and  28.57 %  nitrogen

               calculation

%
  composition  =  mass  of an element  / total mass  x100
mass  of magnesium = 10 g
mass of nitrogen  =  4g

calculate  the  total  mass  used

=  10g of  Magnesium  + 4 g of  nitrogen = 14 grams

%   composition for  magnesium  is therefore  =  10/14  x100 = 71.43 %

%  
composition  for  nitrogen  is therefore = 4 /14  x100  =   28.57 %
7 0
3 years ago
According to Table I, which equation represents a change resulting in the greatest quantity of energy released?
love history [14]
The answer is 3. The releasing of energy means exothermic reaction. So the ΔH should be negative. And the greatest quantity of energy released means that the greatest number. So according to the table I, the answer is 3.
8 0
3 years ago
Read 2 more answers
What is 67,890,000 in scientific notation?
Ulleksa [173]
I believe it's 6789 times 10^4. I could be wrong, due to the fact that I don't remember what's the definition of the scientific notion. I hope this helps, or at least gives you an idea! :D
7 0
3 years ago
Help me with this please
Pavel [41]
I believe it’s D because they are the largest decimals
8 0
3 years ago
Which phrase best describes activation energy? (1 point)
iren [92.7K]

Answer: the minimum amount of energy required to break bonds and start a chemical reaction

Explanation: got a 100% on the quick check

8 0
2 years ago
Other questions:
  • Acid formulas can be distinguished from base formulas because acid formulas usually and base formulas .
    9·1 answer
  • What is a solution
    13·1 answer
  • there are 1540 megawatts of wind-generated electricity produced globally every year. This amount is equivalent to how many kilow
    10·1 answer
  • If a cube has a mass of 90.91 kilograms and a weight of 200 pounds on Earth, what will its mass and weight be on another planet?
    10·1 answer
  • I’ve been trying to figure this out for a few hours
    5·1 answer
  • Lab report for physical and chemical changes??!
    13·1 answer
  • How old is a bone if it presently contains 0.3125g of C-14, but it was estimated to have originally contained 80.000g of C-14?
    8·2 answers
  • Is 2 KClO​3​ ​→​ 2 KCl + 3 O​2 balanced?
    11·1 answer
  • After writing and balancing the equation, what's the next step in using bond energies to calculate the enthalpy of a reaction? Q
    8·1 answer
  • Calculate AHræn for the following reaction
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!