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
Harlamova29_29 [7]
3 years ago
12

What is a mole and its properties​

Chemistry
2 answers:
klio [65]3 years ago
7 0

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant. The concept of the mole can be used to convert between mass and number of particles.

Hitman42 [59]3 years ago
5 0

Answer:

hope it is use full to you

Explanation:

What is a mole?

A mole is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

what is a mole and its properties​

The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter. A mole is defined as the amount of substance containing the same number of discrete entities (atoms, molecules, ions, etc.)

You might be interested in
A 5.00g piece of metal is heated to 100.0°C, then placed in a beaker containing 20.0 of water at 10.0°C. The temperature of the
Ahat [919]
Answer:

This metal has a specific heat of 0.9845J/ g °C

Explanation:
Step 1: Given data
q = m*ΔT *Cp
⇒with m = mass of the substance
⇒with ΔT = change in temp = final temperature T2 - initial temperature T1
⇒with Cp = specific heat (Cpwater = 4.184J/g °C) (Cpmetam = TO BE DETERMINED)

Step 2: Calculate specific heat
For this situation : we get for q = m*ΔT *Cp
q(lost, metal) = q(gained, water)

- mass of metal(ΔT)(Cpmetal) = mass of water (ΔT) (Cpwater)
-5 * (15-100)(Cpmetal) = 20* (15-10) * (4.184J/g °C =
-5 * (-85)(Cpmetal) = 418.4

Cpmetal = 418.4 / (-5*-85) = 0.9845 J/g °C

This metal has a specific heat of 0.9845J/ g °C
7 0
3 years ago
What type of bond results from the electrostatic attraction between positive and negative atoms?
Juliette [100K]
It is called a ionic bond
4 0
3 years ago
2.)__________ is a measure of the mass of an object in a given volume.
fenix001 [56]

Answer: 2. Density

3. Physical Property

4. Chemical Change

5. states of matter

Explanation: Density is referred as mass per unit volume. Physical properties are observable characteristics of an object. An new formation of a substance in a chemical reaction is a chemical change. And solids, liquids, and gases are states of matter.

5 0
3 years ago
What are gigapascals and what are they used for?
hammer [34]

1 Gigapascal: One gigapascal (GPa) is equal to exactly one billion pascals. A pascal (Pa) is the SI unit for pressure define as one newton per square meter. 1 GPa = 1,000,000,000 Pa.

7 0
4 years ago
Brian is testing to see how much water plants need. Why is it important that Brian includes a control group? A) To observe wheth
bija089 [108]

Answer: B or C

Explanation: The question does not include the variable or steps Brian is using so either one could be correct. It has to be the one that he is controlling though. This is because a control group is used to rule out any alternate explanations. Therefore the answer should be the one that he is trying to test out.

7 0
3 years ago
Other questions:
  • Which of these instruments sends its measurements directly to a computer?
    10·2 answers
  • How do atoms with stable nuclei differ from atoms with unstable nuclei?
    14·2 answers
  • Ice cubes are sealed inside a Ziploc bag. The ice cubes and the bag together have a mass of 70.1 grams. The ice cubes melt. How
    13·2 answers
  • Light of three different wavelengths—325 nm, 455 nm, and 632 nm—is shined on a metal surface. The observations for each waveleng
    15·1 answer
  • 1. Adam found a block made of lead. The density of lead is 11.36 g/cm3. The lengths of the block's sides are 3.5 cm, 3.6 cm, and
    9·1 answer
  • What volume of hydrogen gas, when combined with nitrogen gas,
    12·1 answer
  • A sample of a compound containing only carbon and hydrogen was burned to produce 1.36g of water and 5.22g of carbon dioxide. Cal
    15·1 answer
  • What form of energy does a glue gun produce when turned on?​
    8·1 answer
  • I need help with these question THAK YOU!!!!<br> what is Hund's rule?
    12·2 answers
  • How can the actions of people affect runoff and absorption in a positive way? How do they affect them in a negative way?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!