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
Ronch [10]
3 years ago
5

What statement best describes a mole

Chemistry
1 answer:
Alika [10]3 years ago
5 0
ANSWER:

c- it is used for directly comparing the amount of substance
You might be interested in
How many divisions are used to classify living organisms?<br> a) 5<br> b) 6<br> c) 8<br> d) 7
Nataly_w [17]
Answer:a

Living things are divided into five kingdoms: animal, plant, fungi, protist and monera
4 0
3 years ago
The electron configuration of bromine is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 classify electrons in each.
bulgar [2K]

Bromine has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5. categorize the electrons in each. Answer for video: The video player is loaded.

On the periodic chart, row 5, column 7, is where you can find a chemical element that was identified in 1811. It has a proton count of 53 and an atomic mass of 126.9. Iodine's atom, then, contains 53 electrons in the following configuration: 1s2, 2s2, 2p6, 3s2, 3d10, 4p6, 5s2, 4d10, 5p5 (Kr 4d10 5s2 5p5). Cu Z = 29 has an electrical arrangement of 1s2 2s2 2p6 3s2 3p6 3d10 4s1. Copper (Co) has the following electron configuration: 1s2 2s2 2p6 3s3 3p6 4s2 3d7. If a chemist were to refer to Copper by its subshell, they would abbreviate this notation to "3d7."

To learn more about electrons please click on below link

brainly.com/question/1255220

#SPJ4

7 0
1 year ago
What do two or more atoms form when they share electrons in a chemical bond
dlinn [17]
A covalent bond is your answer
6 0
3 years ago
Read 2 more answers
The burning of a sample of propane
r-ruslan [8.4K]

Answer:

70.0°C

Explanation:

We are given;

  • Amount of heat generated by propane as 104.6 kJ or 104600 Joules
  • Mass of water is 500 g
  • Initial temperature as 20.0 ° C

We are required to determine the final temperature of water;

Taking the initial temperature is x°C

We know that the specific heat of water is 4.18 J/g°C

Quantity of heat = Mass × specific heat × change in temperature

In this case;

Change in temp =(x-20)° C

Therefore;

104600 J = 500 g × 4.18 J/g°C × (x-20)

104600 J = 2090x -41800

146400 = 2090 x

  x = 70.0479

     =70.0 °C

Thus, the final temperature of water is 70.0°C

7 0
3 years ago
What is the molar concentration of
Leto [7]

Answer:

1.42 M

Explanation:

First calculate the amount of moles.

that's done by dividing the mass with the molecular mass so 660g / 310.18 g/mol = 2.13 mol

Then you can calculate the molarity by dividing the moles with the volume so 2.13 mol / 1.5 l = 1.42 M

(without rounding: 1.418531175 M)

3 0
2 years ago
Other questions:
  • What is the name for CrN:
    5·2 answers
  • A car with a mass of 1.1 × 103 kilograms hits a stationary truck with a mass of 2.3 × 103 kilograms from the rear end. The initi
    6·2 answers
  • Which balanced equation represents a chemical change? A) H2O() + energy → H2O(g) B) 2H2O() + energy → 2H2(g) + O2(g) C) H2O() →
    9·1 answer
  • _______________ galaxies range in shape from almost perfect spheres to flattened globes with the light brightest in the center a
    5·2 answers
  • Two reasons why scientists create models to study atoms
    13·1 answer
  • A weak base. B. has a K. of 4.46 x 10-10 A solution with an unknown initial concentration is tested, and found to have a pH of 8
    9·1 answer
  • How many molecules are in 3 grams of NO2?
    7·2 answers
  • Air trapped in a cylinder fitted with a piston occupies 142.8 mL at 0.97 kPa pressure.
    15·1 answer
  • ΩΩΩΩΩΩΩΩΩΩ<br><br><br><br>can 1 iron atom conduct heat?<img src="https://tex.z-dn.net/?f=eeee%2Feeee" id="TexFormula1" title="ee
    7·1 answer
  • ____________ rays show areas where large quantities of energy are released.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!