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Alexandra [31]
3 years ago
13

The diagram below shows changes to the nucleus of an atom.

Chemistry
2 answers:
anzhelika [568]3 years ago
8 0

Answer:

maybe 1 or 3 im not sure

Explanation:

i didn't study it yet sorry for not helping but try asking someone else

rodikova [14]3 years ago
7 0
1. Energy is released as a result of atomic fission
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Who's model was titted the atomic theory of matter"? *
alex41 [277]

Answer:

John Dalton

Explanation:

8 0
3 years ago
What is the rate of a reaction if the values are
3241004551 [841]

Answer:

Explanation:

Hi there,

To get started, let's first observe our rate law:

R=k[A]^2[B]^2     we typically use square brackets [x] for chemistry kinetics, because they specifically tell us we are dealing with <em>concentrations</em>.

This rate law is in fourth-order, because the concentrations powers add up to 4. We are not told the unit of time for this prompt (unless you know it), so I just assumed the time unit to be "time."

To calculate the reaction rate, we simply plug in the concentration of A and B into the rate law. k is the <em>rate constant</em> and stays the same for an individual reaction.

R=(0.1 \ M^{-3}*time^{-1})[1 \ M]^2[2 \ M]^2=0.4 \ M/time

Thus, the rate of reaction with those concentrations is 0.4 M/time.

Notice, the rate constant does in fact have units of it own. The unit for k can be calculated by knowing that:

  1. Rate (R) must end up with units of concentration (M) per time.
  2. The concentrations raised to a power can be used to help solve for the units of k.

If you liked this solution, leave it as Brainliest Answer and give a Rating!

5 0
3 years ago
Balance the following equation; then determine how many grams of CO2 will be produced when 40.0 mol of CO reacts with Fe2O3.
sashaice [31]

 Fe2O3      +       3CO -------->    2Fe    +      CO2

      1           :          3         :            2      :         3

   13.3       <---     40    ------> 26.6      --->     40    ( mol)

n = m/M

m CO2 = n.M = 13.3  .    40   =  532 ( g)

p/s : i hope that this will help  ( cause i'm not really good at english :}}} )

6 0
4 years ago
Which substance is not a solid at 20˚C and one atmosphere of pressure?
levacccp [35]
Choose A, Kr is noble gas
3 0
2 years ago
Newlands law of octaves was rejected mainly because of which of the following?
hammer [34]
The correct answer for this question is letter C. Newland's Law of Octaves was rejected mainly because it could not hold good for elements heavier than calcium. The relationship between the octaves started to break down since it was unable to accommodate newly discovered elements.
3 0
3 years ago
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