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
kupik [55]
3 years ago
5

The atomic number and the mass number of 18 and 40. Write the information conveyed by this statement.​

Chemistry
1 answer:
VashaNatasha [74]3 years ago
8 0
There are 18 protons and electrons and 22 neutrons in the atom
You might be interested in
What is the volume of a board that measures 1.8cm by 8.8cm by 30.5cm?
Colt1911 [192]
438,12 cubic centimeters
7 0
3 years ago
Which structure is responsible for bringing in the amino acids? (Points : 1)
Rainbow [258]
Well the answer to number 1 is definitely B
 
number 2 is B

number 3 is D

Number 4 is C

Hope this helps:)



5 0
3 years ago
Read 2 more answers
How many liters of nitrogen gas are needed to make 25 mol of nitrogen trifluoride
ikadub [295]
The reaction between N₂ and F₂ gives Nitrogen trifluoride as the product. The balanced equation is;

N₂ + 3F₂ → 2NF₃

The stoichiometric ratio between N₂ and NF₃ is 1 : 2
Hence, 
  moles of N₂ / moles of F₂ = 1 / 2
  moles of N₂ / 25 mol        =  0.5
           moles of N₂            =  0.5 x 25 mol = 12.5 mol
 
Hence N₂ moles needed  = 12.5 mol

At STP (273 K and 1 atm) 1 mol of gas = 22.4 L

Hence needed N₂ volume = 22.4 L mol⁻¹ x 12.5 mol
                                          = 280 L 
6 0
3 years ago
Two children on a seesaw are able to balance perfectly while on Earth.would they still be balanced if you saw was brought to the
Setler [38]

Answer:

C

Explanation:

Because on the moon you are basically weightless and your mass would stay the same

3 0
3 years ago
Copper is an example of a(n)
expeople1 [14]

copper is not a stone, copper is not a consumption resource, and copper is not renewable, that means that :

d. nonrenewable resource

Explanation:

A nonrenewable source is a source of economic value that cannot be immediately displaced by natural means on a level equal to its destruction. Most fossil fuels, such as oil, natural gas, and coal are estimated nonrenewable resources in that their use is not sustainable because their production takes billions of years.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Any form of matter that is uniform throughout and has consistent properties
    6·1 answer
  • What’s the formula for copper (I) phosphate
    12·2 answers
  • Which of the following processes involves only physical change? A. decay B. sublimation C. digestion D. combustion
    5·2 answers
  • What is the unit for electric current.​
    12·1 answer
  • What happens to thermal energy as objects are heated up and cooled down?
    8·1 answer
  • Please help me I will give you the brain thing and extra points. 2/9<br> image below
    10·2 answers
  • Vinegar is sold as % acidity which means a weight/volume or w/v% calculation. The density of acetic acid is 1.05 g/ml and water
    13·1 answer
  • In a laboratory demonstration, a balloon filled with methane and oxygen was exposed to a flame. The result was a brief, large fl
    9·1 answer
  • Please help me out with these chemistry questions before 11:59pm
    11·1 answer
  • Which compounds are bases in aqueous solution according to brønsted–lowry theory?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!