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Mrrafil [7]
3 years ago
5

( Balance each equation) Na + MgF2 NaF + Mg

Chemistry
1 answer:
kogti [31]3 years ago
8 0

Answer:

2Na + MgF₂   → 2NaF  + Mg

Explanation:

Chemical equation:

Na + MgF₂   →  NaF  + Mg

Chemical equation:

2Na + MgF₂   → 2NaF  + Mg

The given reaction follow the law of conservation of mass because there are equal number of atoms of sodium, magnesium and fluorine are present on both side of equation.

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

Type of reaction:

The given chemical reaction is type of single replacement reaction. Sodium replace the magnesium and form sodium fluoride.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

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What would the carbon dioxide part of a soft drink be classified as?
garik1379 [7]

Answer is: A. solute .

Solvation is the interaction of solvent (in this example water) with molecules or ions (in this example carbon dioxide)) in a solute.  

Solvent (usually a liquid, but can also be a solid or a gas) is a substance that dissolves a solute (dissolved in the solvent).

Solvent is always the same state of matter as the solution. In this example, soft drink is a liquid, so water is a solvent.

5 0
3 years ago
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Please anwser this question will me thanked
Nataly_w [17]
The answer should be "by convection" not by radiation. 
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3 years ago
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At 1 atm, how much energy is required to heat 75.0 g H 2 O ( s ) at − 20.0 ∘ C to H 2 O ( g ) at 119.0 ∘ C?
Hitman42 [59]

Answer:

238,485 Joules

Explanation:

The amount of energy required is a summation of heat of fusion, capacity and vaporization.

Q = mLf + mC∆T + mLv = m(Lf + C∆T + Lv)

m (mass of water) = 75 g

Lf (specific latent heat of fusion of water) = 336 J/g

C (specific heat capacity of water) = 4.2 J/g°C

∆T = T2 - T1 = 119 - (-20) = 119+20 = 139°C

Lv (specific latent heat of vaporization of water) = 2,260 J/g

Q = 75(336 + 4.2×139 + 2260) = 75(336 + 583.8 + 2260) = 75(3179.8) = 238,485 J

3 0
3 years ago
The smallest unit of an element that maintains properties of that element is called a(n)
Mazyrski [523]

Answer:

try c atom i hope this helps!! : )

Explanation:

7 0
3 years ago
Select True or False: Hydrogen plays an important role in many industrial processes. The following correctly represents a balanc
Orlov [11]

Answer: False

Explanation:

Since the given equation is not balanced properly.

Since oxygen and hydrogen atoms are not balanced.

There should be 6 H2O (g) molecules and 14 mol H2 (g)

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3 years ago
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