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
olga2289 [7]
3 years ago
8

12) SEP Use Mathematics Complete the table by identifying the atomic number and

Chemistry
1 answer:
Lina20 [59]3 years ago
7 0

Answer:

{^{11}_{23}}Na \\atomic \: number \:  Z = 11 \\ mass \: number = 23 \\ number \: of \: protons =  \: 11 \\ number \: of \: neutrons \:  = 12 \\  number \: of \: electrons \:  = 11 \\ mass \: number \:  - atomic \: number \:  =  \\  {p}^{ + }  =  {e}^{ - }

You might be interested in
PLZ HELP!<br><br> How do you think changing the angle of a ramp will affect work done?
kogti [31]

Answer: The steepness of a ramp affects it by making it easier or harder.

Explanation: It's a bit situational. If you were going up a steep ramp with a heavy load, it will increase the work necessary, whereas if you were going down a ramp, it would decrease the work necessary. If you need this simply put, think about biking up and down a hill. It would be easier going down than up.

6 0
3 years ago
SiCl4 + H2O = H4SiO4 + HCl
vichka [17]

Hey there!

Balance the equation:

SiCl₄ + H₂O → H₄SiO₄ + HCl

Balance H.

2 on the left, 5 on the right. Add a coefficient of 3 in front of H₂O and a coefficient of 2 in front of HCl.

SiCl₄ + 3H₂O → H₄SiO₄ + 2HCl  

Balance O.

3 on the left, 4 on the right. Change the coefficient of 3 in front of H₂O to a 4.

SiCl₄ + 4H₂O → H₄SiO₄ + 2HCl  

This unbalanced our H, so change the coefficient of 2 in front of HCl to a 4.

SiCl₄ + 4H₂O → H₄SiO₄ + 4HCl  

Balance Cl.

4 on the left, 4 on the right. Already balanced.

Balance Si.

1 on the left, 1 on the right. Already balanced.

Our final balanced equation:

SiCl₄ + 4H₂O → H₄SiO₄ + 4HCl

Hope this helps!

8 0
3 years ago
The coordination sphere of a complex consists of ________. The coordination sphere of a complex consists of ________. the ligand
sammy [17]

Answer:

The coordination sphere of a complex consists of <u><em>the central metal ion and the ligands bonded to it.</em></u>

Explanation:

The Coordination Compounds are sets of a central metal ion attached to a group of molecules or ions that surround it. They are also called metal complexes or simply complexes. Then they are compounds that have a central atom surrounded by a group of molecules or ions, the latter called ligands.

The central atom must have empty orbitals capable of accepting pairs of electrons, with the transition metals being the ones with the greatest tendency. Because of this, they can act as Lewis acids (electron pair acceptors). The ligands have unshared electron pairs, then acting as Lewis bases (electron pair donors).

When forming a complex, it is said that the ligands coordinate to the metal and the central metal and the ligands attached to it constitute the coordination sphere of the complex.

Finally, <u><em>the coordination sphere of a complex consists of the central metal ion and the ligands bonded to it.</em></u>

5 0
3 years ago
How do i write a report about Gold mining?
pentagon [3]
<u><em>Your Essay Must include:</em></u>
<u><em>Introduction:Brings the main idea,Must be atleast 3 sentences.</em></u>
<u><em>Body/Details:Supports the main Idea,Must be atleast 8 sentences.</em></u>
<u><em>Body/Details(Optional):Supports the main Idea,Must be atleast 8 sentences.</em></u>
<u><em>Conclusion:Tells a little more information.</em></u>


4 0
3 years ago
Describe the 3 stages in the " life cycle" of a volcano
SpyIntel [72]

active,dormant,extinct


3 0
3 years ago
Read 2 more answers
Other questions:
  • Which type of bond is found between na+ and cl- ions in nacl?
    13·1 answer
  • How do catalysts affect energy of reactions
    10·2 answers
  • If 655j are added to ethanol (grain alcohol) and its temperature rises from 18.2 C to 32.8 C, what is the mass of the ethanol sa
    14·1 answer
  • Determine net ionic equations, if any, occuring when aqueous solutions of the following reactants are mixed. Select "True" or "F
    14·1 answer
  • What is oxidized and what is reduced in this reaction? N 2 H 4 (l)+2H 2 O 2 (l) N 2 (g)+4H 2 O(g) Nis reduced and H is oxidized.
    15·2 answers
  • What are the elements in group 3-12 called
    8·1 answer
  • 1. Each substance written to the right of the arrow in a chemical equation is a
    6·1 answer
  • Question 2 (1 point)
    7·1 answer
  • D
    11·2 answers
  • 1. Determine how many atoms are present in 2.5 moles of Silicon? (15.05 x 1023 atoms)<br> X
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!