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
MariettaO [177]
3 years ago
10

What is the total number of electrons in a Mg2+ ion?(1) 10 (3) 14 (2) 12 (4) 24

Chemistry
1 answer:
Citrus2011 [14]3 years ago
5 0
The answer is (1) 10. The protons of Mg atom is 12. So the Mg atom has 12 electrons. The Mg2+ ion has lost two electrons so it has two positive charge. Then the answer is 10 electrons.
You might be interested in
3. You are asked to prepare an aqueous solution. What would be a better choice for a solute potassium nitrate or
liubo4ka [24]

Answer:

i do not knowwww

Explanation:

8 0
3 years ago
How does inheritance depend on genes?
zaharov [31]

Answer:

Parents pass on traits or characteristics, such as eye colour and blood type, to their children through their genes.These two copies of the gene contained in your chromosomes influence the way your cells work. The two alleles in a gene pair are inherited, one from each parent.

8 0
2 years ago
Justin mixed two clear liquids together during an experiment and made the following observations: The mixed liquids decreased in
kvasek [131]

Answer:

B

Explanation:

A chemical change occurred, and this caused the liquid’s physical properties to change.

when we read her experiment we can see that color changed to blue, it is because new products are formed. And the temperature cause this.

5 0
2 years ago
What is the average atomic mass of all of the naturally occurring isotopes of nickel in amu?
My name is Ann [436]
In general chemistry, isotopes are substances that belong to one specific element. So, they all have the same atomic numbers. But they only differ in the mass numbers, or the number of protons and neutrons in the nucleus. In a nutshell, they only differ in the number of neutrons.

For Nickel, there are 5 naturally occurring isotopes. Their identities, masses and relative abundance are listed below

  Isotope                Abundance           Atomic Mass
   Ni-58                    68.0769%              <span>57.9353 amu
   Ni-60                    </span>26.2231%              <span>59.9308 amu
   Ni-61                    </span>1.1399 %               <span>60.9311 amu
   Ni-62                    </span>3.6345%                <span>61.9283 amu
   Ni-64                    </span>0.9256%                <span>63.9280 amu

To determine the average atomic mass of Nickel, the equation would be:
Average atomic mass = </span>∑Abundance×Atomic Mass

Using the equation, the answer would be:
Average atomic mass = 57.9353(68.0769%) + 59.9308(26.2231%) + 60.9311(1.1399%) + 61.9283(3.6345%) + 63.9280(0.9256%)

Average atomic mass = 58.6933 amu
3 0
3 years ago
Decribe an example of how external temperature may affect human body functions
marusya05 [52]
If your body temperature falls to 95°F (35°C) or lower, you have “hypothermia.” This condition can potentially lead to cardiac arrest, brain damage, or even death. If your body temperature rises as high as 107.6°F (42 °C), you can suffer brain damage or even death.
4 0
2 years ago
Other questions:
  • Balance the chemical equation by indicating the number of each species in the appropriate blanks. For this exercise, indicate co
    12·1 answer
  • How many neutrons does element X have if its atomic number is 29 and its mass number is 99?
    11·1 answer
  • An unknown element "x" can form a compound with the formula "x"br2. in which main group on the periodic table would element "x"
    15·1 answer
  • Which quantity is equivalent to 50 kilocalories
    13·1 answer
  • What is matter? What is it made up of?
    13·1 answer
  • Animals can change the energy in food into energy the animals can use. What type of energy is in the food before the animals cha
    5·1 answer
  • Earthquakes change the surface of the Earth. Write a response analyzing how the author of "Earthquakes" used cause and effect to
    5·1 answer
  • A nitrde ion has 7protons,8nutrons and 10 electrons. what is the overall change
    13·1 answer
  • The highest pressure ever produced in a laboratory setting was about 2.0 x 10 6 atm. If we have a
    13·1 answer
  • Calculate how many moles of silver nitrate (AgNO3) are in 1.35 L of a 4.25 M solution of silver
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!