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il63 [147K]
2 years ago
9

HELP PLEASE HERE IS THE QUESTION The shape of an apple is a CHEMICAL OR A PHYSICAL CHANGE OR CHEMICAL OR A PHYSICAL PROPITRY.

Chemistry
2 answers:
earnstyle [38]2 years ago
8 0

Answer:

Physical Property

Explanation:

As there is no chemical change or chemical related stuff in it!

Naily [24]2 years ago
6 0

Answer:

physical

Explanation:

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(a) calculate the molarity of a solution made by dissolving 0.0815 mol na2so4 in enough water to form exactly 550. ml of solutio
Vesna [10]
You just need to convert it into moles per Liter (mol/L).

0.0815mol / 0.550L = 0.148mol/L
4 0
3 years ago
Select the correct answer. Which notation is used to represent a beta particle?​
trapecia [35]

Explanation:

I think the notation used to represent beta is B

3 0
3 years ago
Calculate the mole fraction of kbr (molar mass 119.00 g/mol) in a solution made by dissolving 0.30 g kbr in 0.400 l of H2O (d =
julia-pushkina [17]

The mole fraction of KBr in the solution is 0.0001

<h3>How to determine the mole of water</h3>

We'll begin by calculating the mass of the water. This can be obtained as follow:

  • Volume of water = 0.4 L = 0.4 × 1000 = 400 mL
  • Density of water = 1 g/mL
  • Mass of water =?

Density = mass / volume

1 = Mass of water / 400

Croiss multiply

Mass of water = 1 × 400

Mass of water = 400 g

Finally, we shall determine the mole of the water

  • Mass of water = 400 g
  • Molar mass of water = 18.02 g/mol
  • Mole of water = ?

Mole = mass / molar mass

Mole of water = 400 / 18.02

Mole of water = 22.2 moles

<h3>How to de terminethe mole of KBr</h3>
  • Mass of KBr = 0.3 g
  • Molar mass of KBr = 119 g/mol
  • Mole of KBr = ?

Mole = mass / molar mass

Mole of KBr = 0.3 / 119

Mole of KBr = 0.0025 mole

<h3>How to determine the mole fraction of KBr</h3>
  • Mole of KBr = 0.0025 mole
  • Mole of water = 22.2 moles
  • Total mole = 0.0025 + 22.2 = 22.2025 moles
  • Mole fraction of KBr =?

Mole fraction = mole / total mole

Mole fraction of KBr = 0.0025 / 22.2025

Mole fraction of KBr = 0.0001

Learn more about mole fraction:

brainly.com/question/2769009

#SPJ1

6 0
1 year ago
The bright-line spectrum of an element in the gaseous phase is produced as
sesenic [268]
Electrons move from higher energy states to lower energy states Hope this helped
3 0
3 years ago
X) = 3x - 13<br> g(x) = 2x2 - 4x-5<br> {x) = -4-7<br> 6. Find (f- g(x).
Nastasia [14]

Answer:

sorry

Explanation:

don know

8 0
3 years ago
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