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arsen [322]
2 years ago
7

How many moles there is in 6.02x10^23 molecules of hydrogen chloride ​

Chemistry
1 answer:
Masteriza [31]2 years ago
3 0
I mole is the answer I believe
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¿Cuál es el % m/m de una disolución en que hay disueltos 22 g de soluto en 44 g de disolvente?
Archy [21]

The question is as follows: What is the% m / m of a solution in which 22 g of solute are dissolved in 44 g of solvent?

Answer: The% m/m of a solution in which 22 g of solute are dissolved in 44 g of solvent is 50%.

Explanation:

Given: Mass of solute = 22 g

Mass of solvent = 44 g

The percentage m/m is calculated using the following formula.

Mass percentage = \frac{mass of solute}{mass of solvent} \times 100

Substitute the values into above formula as follows.

Mass percentage = \frac{mass of solute}{mass of solvent} \times 100\\= \frac{22 g}{44 g} \times 100\\= 50 percent

Thus, we can conclude that the% m/m of a solution in which 22 g of solute are dissolved in 44 g of solvent is 50%.

5 0
2 years ago
If 0.500 mol of NaN3 react what mass I'm grams of nitrogen would result
klemol [59]
Looks like 3*.5 mol of N, or 1.5*.5 N2 
<span>convert that to grams.</span>
6 0
3 years ago
Do the number of atoms change in a chemical reaction?<br> I will give brainliest
padilas [110]

Answer:

No.

Explanation:

The reason comes the <em>Law of Conservation of Mass</em>.

In an ordinary chemical reaction, <em>you cannot create or destroy atoms</em>.

So, you must have as many atoms at the beginning of a reaction (in the reactants) as at the end (in the products)

We use this principle to balance chemical equations.

For example, the equation for the formation of water from hydrogen and oxygen is

2H₂ + O₂ ⟶ 2H₂O

There are four atoms of H and two of O both before and after the reaction.

5 0
3 years ago
Which material is a mixture?<br> 1. water<br> 2. air <br> 3. methane<br> 4. magnesium
skelet666 [1.2K]
Pure air is a mixture of several gases that are invisible and odorless. Consists of 78% nitrogen, 21% oxygen, and less than 1% of argon, carbon dioxide.  
3 0
3 years ago
Read 2 more answers
Select all that apply.When the products of a reaction are hotter than the reactants
andrezito [222]
When the products of a reaction are hotter than the reactants, an exothermic reaction is happening. An exothermic reaction is a reaction that releases energy to the surroundings. The energy released should be more than what is absorbed in order to maintain the reaction.
8 0
3 years ago
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