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
ahrayia [7]
3 years ago
12

How many electrons does A1 3+​

Chemistry
1 answer:
Orlov [11]3 years ago
6 0

13

The parent atom,  

Z

=

13

, necessarily has 13 electrons.....

Explanation:

And thus the trivalent ion has 10 electrons.....to give the tripositive charge.

You might be interested in
Both owls and snakes preying on mice in a forest is an example of
finlep [7]
Competition as the owl and snakes are both preying on the mice in a forest so they are both competing for the food source of mice.
6 0
3 years ago
What type of intermolecular forces are present in liquid methanol?
salantis [7]

Answer:

Hydrogen bonds

Explanation:

Hydrogen bonds are bonds formed in polar molecules in which an hydrogen atom is directly joined to a highly electronegative atom such as oxygen or nitrogen or fluorine.

A hydrogen bond is just an electrostatic attraction between a hydrogen atom of one molecule and the electronegative atom of a neighboring molecule.

Methanol has a formula of CH₃OH and the hydrogen bond is between the H and O.

7 0
3 years ago
What is the volume of 25 g iodine, density = 4.93 g/cm^3??​
aniked [119]
  • Mass=25g
  • Density=4.93g/cm^3

\\ \rm\rightarrowtail Volume=\dfrac{Mass}{Density}

\\ \rm\rightarrowtail Volume=\dfrac{25}{4.93}

\\ \rm\rightarrowtail Volume=5.1cm^3

8 0
2 years ago
At constant temperature, if a gas occupies 312 mL at a pressure of 1.60 atm, what pressure is necessary for this gas to occupy a
inn [45]

Answer:

P₂ = 1.0 atm

Explanation:

Boyles Law problem => P ∝ 1/V at constant temperature (T).

Empirical equation

P ∝ 1/V => P = k(1/V) => k = P·V => for comparing two different case conditions, k₁ = k₂ => P₁V₁ = P₂V₂

Given

P₁ = 1.6 atm

V₁ = 312 ml

P₂ = ?

V₂ = 500 ml

P₁V₁ = P₂V₂ => P₂ = P₁V₁/V₂ =1.6 atm x 312 ml / 500ml = 1.0 atm

5 0
3 years ago
How does reproduction leads to natural selection in a population
Advocard [28]

Natural selection requires variation between individuals. Mutations and reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring.

6 0
3 years ago
Other questions:
  • The students in the picture below are using a globe and a lamp to model the Sun and the Earth. If the model Earth acts the same
    12·1 answer
  • What is the density of a smaple if it weight 3.5 grams and has a volume of 2cm^3
    6·1 answer
  • What is TRUE about how the “CSI effect” has been represented in society?
    7·1 answer
  • 22486Rn → _________ + 42He
    15·1 answer
  • A change that produces matter with a different composition is a _______ change.
    9·1 answer
  • How many moles of cacl2 are in 10.5g of cacl2?
    8·1 answer
  • Which phrase is the best description of osmosis
    8·2 answers
  • Calculate the quantity of energy released when 783 g of steam condenses.<br><br> (show work)
    15·1 answer
  • Each coin has a mass of 21.94 g and a volume of 2 mL which of the following metals are the coins made of
    13·1 answer
  • Ammonia is produced by the millions of tons annually for use as a fertilizer. It is commonly made from N₂ and H₂ by the Haber pr
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!