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
zubka84 [21]
3 years ago
12

An aluminum ion has 13 protons, 14 neutrons, and 10 electrons. What is the charge of the aluminum ion?

Chemistry
1 answer:
Kipish [7]3 years ago
3 0

Answer:

+3

Explanation:

-10 + 13 = +3

-10 IS THE NUMBER OF ELECTRONS

13 IS THE NUMBER OF PROTONS

You might be interested in
11. Assuming that the gases are ideal, calculate the amount of work done (joules) in each of the following reactions at 25 degre
gayaneshka [121]

<u>Answer:</u>

<u>For a:</u> Work done for the given reaction is 2477.572 J.

<u>For b:</u> Work done for the given reaction is 0 J

<u>Explanation:</u>

To calculate the work done for the reaction, we use the equation:

W=-P\Delta V

Ideal gas equation follows:

PV=nRT

Relating both the above equations, we get:

W=-\Delta n_gRT     ......(1)

where,

\Delta n_g = difference in number of moles of products and reactants = n_g_{(products)}-n_g_{(reactants)}

R = Gas constant = 8.314 J/K.mol

T = temperature = 25^oC=[273+25]K=298K

  • <u>For a:</u>

The chemical reaction follows:

4HCl(g)+O_2(g)\rightarrow 2Cl_2(g)+2H_2O(g)

\Delta n_g=4-5=-1

Putting values in equation 1, we get:

W=-(-1mol)\times (8.314J/K.mol)\times 298K=2477.572J

Hence, work done for the given reaction is 2477.572 J.

  • <u>For b:</u>

The chemical reaction follows:

2NO(g)\rightarrow N_2(g)+O_2(g)

\Delta n_g=2-2=0

Putting values in equation 1, we get:

W=-(0mol)\times (8.314J/K.mol)\times 298K=0J

Hence, work done for the given reaction is 0 J.

3 0
3 years ago
Tell me the main parts of the Earth Layers.
sukhopar [10]

Answer:

Crust (the surface)

Upper Mantle (dense magma)

Lower Mantle (less dense magma)

Outer Core (pure liquid material)

Inner Core (dense material)

Hope that helps

8 0
3 years ago
11. A 4.175 gram sample of a certain hydrate of copper (II) sulfate, CuSO,• xH,O, is heated until all
Wewaii [24]

The  formula of the hydrate = CuSO₄• 3H₂O

<h3>Further explanation</h3>

Given

4.175 grams sample CuSO₄• xH₂O

3.120 grams anhydrous compound CuSO₄

Required

The formula

Solution

mass of H₂O driven off :

= 4.175 - 3.12

= 1.055 g

MW CuSO₄ = 159.5 g/mol

MW H₂O = 18 g/mol

mol ratio of CuSO₄ : H₂O :

= 3.12/159.5 : 1.055/18

= 0.01956 : 0.05861

= 1 : 3

3 0
3 years ago
The symbol Na represents a sodium atom that has lost an electron. True False
IgorLugansk [536]
False.
Na does represent sodium, but NOT when it lost an electron. Na+ represents sdoium when it lost its electron.

3 0
3 years ago
Which option is a physical property of matter?
Elan Coil [88]

Answer:

boiling point is the physial property of matter

5 0
3 years ago
Other questions:
  • The key step in the metabolism of glucose for energy is the isomerization of glucose−6−phosphate (G6P) to fructose−6−phosphate (
    7·1 answer
  • Would the molecules of polar covalent bonds mix better with sugar or oil?
    10·1 answer
  • If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 M H2SO4, the flask at the endpoint will contain (besides the indicato
    13·1 answer
  • How many grams are in 2.30 x 10^24 atoms in silver
    10·1 answer
  • What part of ear caries electrical impulses to the brain?
    5·2 answers
  • Dihydrogen sulfide reacts with oxygen gas to form sulfur dioxide and water. How many moles of oxygen gas will react when 0.6469
    15·1 answer
  • What 3 variables were changed in the pendulum experiment?
    14·1 answer
  • What answer should i put and the box right answer will get brainliest
    12·1 answer
  • How many moles of AgCl can form from 6.5 moles of Ag and abundant HCl in the equation: 2Ag + 2HCl -&gt; 2AgCl + H2
    12·1 answer
  • What can the shape of a molecule affect?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!