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
Degger [83]
3 years ago
12

How many valence electrons are in an atom of phosphorus

Chemistry
2 answers:
dezoksy [38]3 years ago
5 0
5 Valence electrons .......... Hope it helps, Have a nice day:)
Jet001 [13]3 years ago
4 0
5 Valence electrons :)
You might be interested in
MnO2 + 4HCl reacts to form MnCl2 + CL2 + 2H2O If .86 mol of MnO2 and 48.2 g of HCl react, which reactant is the limiting reagent
Katen [24]
HCl:
<span>
m=48,2g
M=36,5g/mol

n = m/M = 48,2g / 36,5g/mol = 1,32mol

1mol          : 4mol
MnO</span>₂        + 4HCl ⇒ MnCl₂ + Cl₂ + 2H₂O
0,86mol     :  1,32mol
                     limiting reagent 
0,33 will react

HCl is limiting reagent.
6 0
3 years ago
How do covalent bonds form?
astra-53 [7]

Answer:

Hiya there!

Explanation:

A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units.

<em><u>Hope this helped!</u></em> ^w^

Credit sourced from "sciencedirect.com"

5 0
3 years ago
Read 2 more answers
The specific heat of copper is 0.40 joules/ g °c. How much heat is needed in joules to change the temperature of a 55 gram subst
Snezhnost [94]

Answer : The amount of heat needed is, 1188 J

Explanation :

Formula used :

q=m\times c\times (T_2-T_1)

where,

q = heat needed = ?

m = mass of copper = 55 g

c = specific heat capacity of copper = 0.40J/g^oC

T_1 = initial temperature = 20.0^oC

T_2 = final temperature = 74.0^oC

Now put all the given values in the above formula, we get:

q=55g\times 0.40J/g^oC\times (74.0-20.0)^oC

q=1188J

Thus, the amount of heat needed is, 1188 J

3 0
3 years ago
What is safer to drink 113 ml of HCl or 244 ml of NaOH​
skad [1K]

Answer:

bleach

Explanation:

idrk

5 0
2 years ago
Which section of the reaction represents the reactants
Diano4ka-milaya [45]
A should be the products and D should be the reactants. So D should be the answer.
8 0
3 years ago
Other questions:
  • A metallurgist reacts 250.0 grams of 76.0% by mass silver nitrate solution with an excess of copper
    15·1 answer
  • Melting is a physical change in matter, so it doesn’t change the chemical makeup or chemical properties of matter.
    6·1 answer
  • What is the formula of titanium(IV) bromide?
    14·1 answer
  • On a caterpillar's map, all distances are marked in millimeters. The caterpillar's map shows that the distance between two milkw
    12·1 answer
  • The total number of each element is not changed during a chemical reaction
    6·1 answer
  • 8. An atom has 9 protons, which element is it?​
    14·2 answers
  • Which organic compound is most soluble in water? A) ethyne B) benzene C) butane D) ethanol
    9·1 answer
  • A cube has sides that are 0.03 m . What is the volume of the cube in liters?
    7·1 answer
  • The energy released during ________ reactions can be used to drive ________ reactions, and this is called ________ reactions.
    13·2 answers
  • Coolant is added to car radiators to keep the water from becoming a gas and evaporating when the car gets hot. Which physical pr
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!