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Alex17521 [72]
3 years ago
15

Question 4 Volume is what type of physical property?

Chemistry
1 answer:
LUCKY_DIMON [66]3 years ago
3 0
I think it would be oxygen
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3. Find the mass of 4.77 x 1022 atoms of scandium<br> (Sc).
iren2701 [21]

Answer:

Mass = 3.6 g

Explanation:

Given data:

Number of atoms of scandium = 4.77×10²² atoms

Mass of arsenic = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022× 10²³ is called Avogadro number.

one mole =  6.02×10²³ atoms

one mole × 4.77×10²² atoms / 6.02×10²³ atoms

0.08 mol

Mass of scandium

Mass = number of moles × molar mass

Mass = 0.08 mol ×  45 g/mol

Mass = 3.6 g

7 0
3 years ago
Which metal used in hot water systems​
Mrrafil [7]

Answer: Nichrome

Explanation: Hot water system coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).

6 0
3 years ago
Read 2 more answers
How many moles are in 12 gr of magnesium?
myrzilka [38]

Answer: 0.5 mole Mg

Explanation: solution:

12 g Mg x 1 mole Mg / 24 g Mg

= 0.5 mole Mg

5 0
3 years ago
Formula for calculating pressure​
Anna35 [415]

Answer:

The formula for pressure is P = F/A, in which P is pressure, F is force, and A is area.

Explanation:

6 0
3 years ago
Describe the number and type of each component of the molecule methane
Tasya [4]

Answer:

Methane is a chemical compound with the molecular formula CH4. It is the main component in natural gas. Methane is considered the simplest of alkanes, compounds that consist only of hydrogen (H) and carbon (C) elements. Methane is an odorless, colorless, tasteless gas that is lighter than air.

Explanation:

4 0
3 years ago
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