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
Len [333]
2 years ago
9

I WILL MAKE YOU BRAINLIEST ! :Which factor varies between the isotopes of an element?

Chemistry
2 answers:
FrozenT [24]2 years ago
7 0
C. The neutron number.

An element is determined based on how many protons has, if the protons number change then you got a new element.

If the number of neuron change you got the same element except it will be a bit heavier or lighter if you are gaining or loosing neutrons. Those variations of an element are called the isotops of the element.

The protons and neutrons toghether form the nucleus of the atom that is heavy and dense as an elephant.

The electrons are light as fleas and stay on the shels of around the nucleus and if they are more then the number of protons they make the atom negatively charged and vice versa.
olasank [31]2 years ago
3 0
Yes i think that answer c is right also.     hoped i helped
You might be interested in
Why can characteristics properties be used to identify unknown substances
frozen [14]

Characteristic properties are used because the sample size and the shape of the substance does not matter.

5 0
2 years ago
Which of the following is not a property of a buffer solution? a) It is a mixture of a weak acid and its conjugate base. b) Resi
m_a_m_a [10]

Answer:

e) pH is independent of concentration.

Explanation:

a) It is a mixture of a weak acid and its conjugate base. <em>TRUE. </em>A buffer is defined as a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.

b) Resists pH changes because it reacts with added acid or base. <em>TRUE. </em>Thermodynamically, the reaction of added acid or base is faster with the buffer mixture than with H⁺ or OH⁻ ions of the solutions.

c) The maximum buffer capacity is at pH = pKa. <em>TRUE. </em>The buffer capacity is pka±1. For this, buffer capacity is maximum in pka.

d) pH is dependent on the solution ionic strength and temperature. <em>TRUE.</em> Ionic strength and temperature are factors that influence concentrations of ions in solutions as the H⁺ ion that is the responsible

e) pH is independent of concentration. <em>FALSE. </em>pH in a buffer depends completely of concentrations of the acid and its conjugate base or vice versa.

I hope it helps!

8 0
3 years ago
10. Which change to a DNA molecule would have the least effect on an organism?
Alex73 [517]
<span>Mutation. Either exchanging a Purine with another Purine, Pyrimidin with another Pyrimidin, or completely exchanging a Purine with a Pyrimidin or vice versa. Point- or Frameshift-Mutation.</span>
6 0
3 years ago
Read 2 more answers
In this double replacement reaction, which are the products? hcl + naoh —&gt; ______?
Anarel [89]
The answer is:  " NaCl + H₂O " ; (or; write as:  " H₂O + NaCl " ) .
________________________________________________________
Specifically:
_________________________________________________________

    HCl + NaOH  —>  NaCl + H₂O  ;   or; write as:

    NaOH + HCl   —>  H₂O + NaCl  .
_______________________________________________________
            This type of "double-replacement" reaction is called "neutralization".
 
             Since we are adding a strong acid to a strong base (reactants), we know that the product will be:  1) a salt ; and 2) water.  Since we know one of the reactants will be "water" (H₂O) ; we can find the base (i.e. , the "remaining product") from selecting the "unused elements" to form the corresponding "salt".
________________________________________________________
3 0
3 years ago
Read 2 more answers
37)
liberstina [14]

Answer:

The answer is D.

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What was the key design change for hfc-134a a/c systems versus CFC 12 a/c systems
    12·1 answer
  • Which of the following is a reasonable ground-state electron configuration? a. 1s22s22p43s2 b. 1s21p62s22p6 c. 1s22s22p63s23p64s
    13·1 answer
  • A possible mechanism for the overall reaction br2 (g) + 2no (g) → 2nobr (g) is no (g) + br2 (g) nobr2 (g) (fast) nobr2 (g) + no
    13·1 answer
  • Fill in the blank to complete each statement.
    5·1 answer
  • A solid turning into a gas in a chemical or a physical change?
    13·1 answer
  • At construction sites, workers often reduce erosion by ____.
    15·1 answer
  • N the reaction Mg + 2HCl -&gt; MgCl2 + H2 which element’s oxidation number does not change?
    8·1 answer
  • Calculate the change in energy when 75.0 grams of water drops from<br> 31.0C to 21.6.
    12·2 answers
  • Which of the following compounds would you expect to be an electrolyte?
    11·1 answer
  • What step in the water treatment process involves the removal of sediment?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!