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3 years ago

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Chemistry

2 answers:

Zepler [3.9K]3 years ago

6 0

Answer:

Explanation:

edge food and nutrition!!

zhannawk [14.2K]3 years ago

4 0

Answer:

whats the question

i dont get it where is the questionnnn

Explanation:

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What transition metal whose symbol is derived from its Latin name, wolfram

mash [69]

Tungsten, the symbol of which is W.

Hope this helps! :)

5 0

3 years ago

Consider the following reaction:

slava [35]

Answer:

Option D is correct = 58 g

Explanation:

Data Given:

mass of LiOH = 120 g

Mass of Li3N= ?

Solution:

To solve this problem we have to look at the reaction

Reaction:

Li₃N (s) + 3H₂0 (l) -----------► NH₃ (g) + 3LiOH (l)

1 mol 3 mol

Convert moles to mass

Molar mass of LiOH = 24 g/mol

Molar mass of Li₃N = 35 g/mol

So,

Li₃N (s) + 3H₂0 (l) -----------► NH₃ (g) + 3LiOH (l)

1 mol (35 g/mol) 3 mol (24 g/mol)

35 g 72 g

So if we look at the reaction 35 g of Li₃N react with water and produces 72 g of LiOH , then how many g of Li₃N will be react to Produce by 120 g of LiOH

For this apply unity formula

35 g of Li₃N ≅ 72 g of LiOH

X of Li₃N ≅ 120 g of LiOH

By Doing cross multiplication

Mass of Li₃N = 35 g x 120 g / 72 g

mass of Li₃N = 58 g

120 g of LiOH will produce from 58 g of Li₃N

So,

Option D is correct = 58 g

5 0

3 years ago

How many oxygen atoms does 1 mol of 02 gas have?

BigorU [14]

Answer:

two oxygen atoms

Explanation:

One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

4 0

3 years ago

Read 2 more answers

A rigid cylinder with a movable piston contains a sample of gas. At 300. K, this sample has a pressure of 240. Kilopascals and a

iren [92.7K]

Answer:

The volume of this sample when the temperature is changed to 150 K and the pressure is changed to 160 kPa is 52.5 mL.

Explanation:

Boyle's law says that: "The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure" and is expressed mathematically as:

P * V = k

where k is a constant.

Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is maintained at a constant pressure, by means of a constant of proportionality that is applied directly. So Charles's law is a law that mathematically says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

$\frac{V}{T}=k$

Gay-Lussac's law states that the pressure of a fixed volume of a gas is directly proportional to its temperature. In other words, if the volume of a certain quantity of ideal gas remains constant, the quotient between pressure and temperature remains constant:

$\frac{P}{T}=k$