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Shkiper50 [21]
3 years ago
9

Magnesium reacts with oxygen gas to form magnesium oxide. Which of the following represents the balanced chemical equation?

Chemistry
2 answers:
Iteru [2.4K]3 years ago
7 0

Answer:

2Mg + O2 → 2MgO

Explanation:

maw [93]3 years ago
3 0

Answer:

2Mg + O2 → 2MgO

Explanation:

Step 1: Data given

Magnesium = Mg

Oxygen = O2

magnesiumoxide = MgO

Step 2: The unbalanced equation

Mg + O2 → MgO

Step 3: Balancing the equation

On the left we have 2x O so on there right, we should mulitply MgO by 2 so we have on each side 2x O

Mg + O2 → 2MgO

On hte right side we have 2x Mg, so we have to multiply on the left side Mg by 2 to have the same amount of Mg on both sides

2Mg + O2 → 2MgO

Now the equation is balanced

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An ionic bond is between what kind of charged particles?
Lisa [10]

Answer: An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.

Explanation:

3 0
3 years ago
10 points<br><br> How many more oxygen atoms are in 3Mg3(PO4)2 than in 4Al2O3?
Feliz [49]

Answer:

12 more oxygen

Explanation:

An atom is the smallest particles that can take part in a chemical reaction

The given compounds are:

        3Mg₃(PO₄)₂  

 Number of oxygen atoms  = 3[2 x 4]  = 24 oxygen atoms

For;

             4Al₂O₃;

   Number of oxygen atoms  = 4 x 3  = 12 oxygen atoms

In   3Mg₃(PO₄)₂  , there are 24  - 12  = 12 more oxygen atoms than in  4Al₂O₃;

6 0
3 years ago
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Why do atoms share electrons in covalent bonds?
vladimir2022 [97]
To fill the other element's shell.
7 0
3 years ago
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Which of the following measurements contains 2 significant figures?
Trava [24]
The answer would be 371 because it has multiple complete digits
7 0
3 years ago
A balloon originally had a volume of 4.39 L at 44C and a pressure of 729 torr  to what temperature must the balloon be cooled
VMariaS [17]

The new temperature : 11.56 °C

<h3>Further explanation </h3>

Boyle's law and Gay Lussac's law  

\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}

P1 = initial gas pressure (N/m² or Pa)  

V1 = initial gas volume (m³)  

P2 = final gas pressure  

V2 = final gas volume

T1 = initial gas temperature (K)  

T2 = final gas temperature  

V₁=4.39 L

T₁=44+273=317 K

P₁ = 729 torr = 0,959211 atm

V₂=3.78 L

P₂= 1 atm

\tt \dfrac{0.959211\times 4.39}{317}=\dfrac{1\times 3.78}{T_2}\\\\T_2=\dfrac{1\times 3.78\times 317}{0.959211\times 4.39}\\\\T_2=284.559~K=11.56~C

3 0
3 years ago
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