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Inessa [10]
3 years ago
6

When sodium and oxygen react to form an ionic compound, the mass of the compound ____ the sum of the masses of the individual el

ements.
is less than
is greater than
is equal to
can be greater than or less than
Chemistry
2 answers:
Anna007 [38]3 years ago
5 0
Hi Lara

The answer is : C

Is equal to


I hope that's help!
mylen [45]3 years ago
5 0

Answer: Less than

Chemical reactions involve a separation, combination, or rearrangement of atoms.

During a chemical reaction which involves breaking and making a bond some amount of matter is destroyed some are converted to energy. Hence, when sodium and oxygen react to form an ionic compound, the mass of the compound is less the sum of the masses of the individual elements

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If a reaction mixture contains 24 g of Mg and 32 g of O2 , what is the limiting reactant?
Alexxx [7]

This problem is providing the mass of both magnesium metal and oxygen gas and involved in a chemical reaction and asks for the limiting reactant. At the end, it turns out to be identified as magnesium.

<h3>Stoichiometry</h3>

In chemistry, stoichiometry is a widely-used tool we use in order to relate the mass and moles of different chemical substances involved in a chemical reaction. Thus, we consider the following chemical equation between magnesium and oxygen to produce magnesium oxide.

2Mg+O_2\rightarrow 2MgO

However, when the mass of the both of the reactants is given, one must identify the limiting reactant as the one producing the least of the moles of the product, which means we can use the given grams of the both of the reactants, their molar masses and mole ratios with the product to obtain the aforementioned:

24gMg*\frac{1molMg}{24.3gMg}*\frac{2molMgO}{2molMg}=0.988molMgO\\ \\ 32gO_2*\frac{1molO_2}{32.0gO_2}*\frac{2molMgO}{1molO_2}=2molMgO

Thus, we can evidence how 24 g of magnesium produce the least of the moles of magnesium oxide, fact validating the magnesium as the limiting reactant and the oxygen as the excess one.

Learn more about stoichiometry: brainly.com/question/9743981

3 0
3 years ago
Rate 2021 so far<br> 1/5<br> 2/5<br> 3/5<br> 4/5<br> 5/5
Naddik [55]

Answer:

Is this an actual question that you had for school?

Explanation:

4 0
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I have no idea how to do this help plz!
Wittaler [7]
The answes are
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Then it is
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Im doing this for class too bruh
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3 years ago
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Help please need to find the frequency of the wave
Lapatulllka [165]
E=hf h=6.63*10^-34 f=8.66*10^14 E=6.63*10^-34*8.66*10^14=57.4*10^-20 joules
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3 years ago
How many moles of a gas would occupy 22.4 Liters at 273 K and 1 atm?<br><br><br> Read bottom comment
Genrish500 [490]

Answer:

The following relationship makes this possible: 1 mole of any gas at standard temperature and pressure (273 K and 1 atm) occupies a volume of 22.4 L.

Explanation:

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3 years ago
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