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Ipatiy [6.2K]
3 years ago
14

1.Can matter ever have zero mass? Explain your reasoning.

Chemistry
1 answer:
chubhunter [2.5K]3 years ago
7 0

Answer: 1. No, I don't think so. 2. Weight is the force of gravity, which is different from mass. 3. m2 is a unit of distance. 4. 30 x 20 x 5 = 3000 cm3 = 3 L

Explanation:

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CAN SOMEONE PLEASE HELP ME I WILL GIVE BRAINLIEST
Dennis_Churaev [7]

Answer:

9812

Explanation:

i think

3 0
3 years ago
Read 2 more answers
How many atoms of aluminum are in one formula unit of aluminum chloride?
ICE Princess25 [194]

The formula for aluminum fluoride is AlF_{3}


That means that there is 1 Aluminum and 3 fluorde ions in 1 molecule. The 3 does not effect the Aluminum at all.


The Answer is A

7 0
3 years ago
Predict the method of extraction used to obtain calcium from its ore
Norma-Jean [14]

Answer:

Reactivity and extraction method

Metal Method

Calcium Electrolysis

Magnesium Electrolysis

Aluminium Electrolysis

(Carbon) (Non-metal)

5 0
3 years ago
Please give formulas of how you solved I only need help on a but if you can do all that I would appreciate that.​
cricket20 [7]

Answer:

3.1 moles of ammonia

18.67× 10²³ molecules

Mass = 52.7 g

Explanation:

Given data:

Number of atoms of hydrogen = 5.68×10²⁴ atoms

A) Number of molecules of ammonia = ?

Solution:

First of all we will calculate the number of moles of hydrogen.

1 mole = 6.022× 10²³ atoms

5.68×10²⁴ atoms × 1 mol / 6.022× 10²³ atoms

0.94×10¹ mol

9.4 moles of hydrogen

Moles of ammonia:

3 moles of hydrogen are present in one mole of ammonia.

9.4 moles of hydrogen = 1/3×9.4 =

3.1 moles of ammonia

Number of molecules of ammonia:

1 mole contain 6.022× 10²³ molecules.

3.1 mol × 6.022× 10²³ molecules / 1 mol

18.67× 10²³ molecules

c) Mass of sample = ?

Mass = number of moles × molar mass

Mass = 3.1 moles × 17 g/mol

Mass = 52.7 g

4 0
3 years ago
What is the metal with 4 valence <br><br>electrons and a mass greater than 200?
vodka [1.7K]

Francium is the heaviest of the alkali metals, with an atomic mass of 223 grams.

7 0
3 years ago
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