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
postnew [5]
3 years ago
6

Whats the atomic number of an electron?

Chemistry
1 answer:
gulaghasi [49]3 years ago
4 0

Answer:

number of electron is -1

Explanation:

You might be interested in
PLEASE HELP HELP I NEED THIS ASAP
Sergeu [11.5K]
Wait SORRY HELP WITH WHAT?!!
5 0
3 years ago
Read 2 more answers
What is mean by kinetic energy​
Vinvika [58]
The energy that an object has is moving
5 0
3 years ago
luminum and oxygen react according to the following equation: 4Al(s) +3O2(g) --> 2Al2O3(s) What mass of Al2O3, in grams, can
Slav-nsk [51]

Answer: 8.7 grams

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.  

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{4.6g}{27g/mol}=0.17moles

4Al(s)+3O_2(g)\rightarrow 2Al_2O_3(s)

As oxygen is in excess, Aluminium is the limiting reagent and limits the formation of products.

According to stoichiometry:

4 moles of aluminium give = 2 moles of Al_2O_3(s)

Thus 0.17 moles of aluminium give=\frac{2}{4}\times 0.17=0.085mol

Mass of Al_2O_3=moles\times {\text {molar mass}}=0.085\times 102g/mol=8.7g

Thus the mass of Al_2O_3(s)  is 8.7 grams

8 0
3 years ago
How did the different reform movements we've discussed change and shape America?<br> Pls help
tigry1 [53]

Answer:

ok ............bu am not so sure

6 0
3 years ago
if a steel spoon were to be plated with silver, state what would be suitable as the anode, cathode, electrolyte​
Tresset [83]

Answer:

The anode will be silver

The cathode will be the steel spoon

The electrolyte will be silver nitrate

Explanation:

Pls mark BRAINLIEST

7 0
2 years ago
Read 2 more answers
Other questions:
  • Choose the best option for the precursor to the tosylate intermediate Design a synthesis of cis-2-methylcyclopentyl acetate from
    14·1 answer
  • Calculate the change in ph when 3.00 ml of 0.100 m hcl(aq) is added to 100.0 ml of a buffer solution that is 0.100 m in nh3(aq)
    5·1 answer
  • For a certain reaction, Kc = 2.76×103 and kf= 6.54×10−4 M−2⋅s−1 . Calculate the value of the reverse rate constant, kr, given th
    9·1 answer
  • By examining electron domain geometry, one can determine that the ammonia molecule (NH3) has
    10·1 answer
  • If molecules move from one place to another inside of a cell, which type of communication is this?
    14·1 answer
  • The movement of material due to differences in density that are caused by differences on temperature is called__________________
    7·1 answer
  • Hey I need help with 84-88
    7·1 answer
  • 4. Since water possess a partially positive and a negative end, we refer to it as?
    5·1 answer
  • Based on the image below, which item is your limiting reactant?(A) Ice cream scoopB) Cone(C) Cherry
    13·1 answer
  • What is observed when magnesium is reacted with hydrochloric acid? choose all that apply
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!