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
Gwar [14]
3 years ago
11

How many valence electrons are in each atom? a. potassium b. carbon c. magnesium d. oxygen

Chemistry
1 answer:
Alona [7]3 years ago
8 0
A. 1 valence electron
b. 4 valence electrons
c. 2 valence electrons
d. 6 valence electrons
You might be interested in
A property is a characteristic of a substance that can be observed and does not change the identity of the substance. T/F
Murljashka [212]
The correct answer is false. The statement given does not describe a property in general. However, it speaks of a specific type of property which is the physical property.  This property is the one that does not change the identity of a substance. A property can also be a chemical property where the identity of a substance is changed.
4 0
3 years ago
7. Write a balanced chemical equation for the following reactions and label what type of reaction it is. (3 points)
slamgirl [31]
(A) Naoh + Hno3 == Nano3 + h20.
and it is acid based reaction.
(B) H + Br == Hbr. it is synthesis reaction
and it should be hydrogen gas with bromine gas if that was question then
H2 + Br2 == 2Hbr
(c) 3Agno3 + Alcl3 == Al (No3)3 + 3Agcl
it is double displacement. and we right the polyatomic ion in bracket that’s why no3 is in bracket.
please let me know if you need something
5 0
3 years ago
Read 2 more answers
How many moles are in 7.5x10^19<br> , NH3
ololo11 [35]
4.4x10^18 I think or ya
7 0
3 years ago
8. Why do we see water droplets on the outer surface of a glass containing ice cold water?
baherus [9]

Answer:

8. We see water droplets on the outer surface of a glass containing ice cold water because condensation is happening! This happens when warm water vapour from the surroundings come into contact with a cool surface (in this case the cool glass) and loses heat and condenses, forming water droplets on the surface of the glass.

9 a) -248.15 celcius

b) 99.85 celcius

10. by using 2 syringes, one filled with water and one filled with air. when you compress it, you will find that the one with water barely compresses and the one filled with air should be able to be compressed quite a bit. and to the extent that the syringe is unable to be pushed down further, that is the maximum compressibility of air.

5 0
3 years ago
Read 2 more answers
Which of the following statements is NOT true about practice?
kobusy [5.1K]

Answer:

we need a picture

Explanation:

but you can ask the question again with one

5 0
3 years ago
Other questions:
  • If the ph of a solution is 6.2 what would the poh be
    15·2 answers
  • What is the definition of physical and chemical properties of matter?
    7·1 answer
  • Please Help!!!! I'll Give 10Points!!!! This illustration drawn by a scientist is based on observations of a cell under a microsc
    6·1 answer
  • The amount of dissolved oxygen that seawater can hold in solution will be greater in
    5·1 answer
  • Is waterproof sun lotion polar or no polar
    14·1 answer
  • You set up an experiment to determine the conditions needed to form the gemstones with the most clarity. You gather data from 5
    8·2 answers
  • Fe+CuCI2&gt; FeCI2+Cu balancing equations
    5·1 answer
  • The lead pipe has a mass of 200 g, how much will be left after 6 months?
    8·1 answer
  • HELP PLEASE I WILL MARK YOU AS THE BRAINLIEST ANSWER!! Based on the periodic table, what is the most likely charge of a phosphor
    7·1 answer
  • Help Me Please Thank You
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!