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frosja888 [35]
3 years ago
5

What are the correct coefficients for the reaction below:

Chemistry
1 answer:
77julia77 [94]3 years ago
7 0

C was the answer i had and it was right


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Choose the TRUE statement.
dsp73

Mass is calculated by using an objects inertia. Since inertia is a quality of matter that resists motion, we can apply an increasing force to an object until it accelerates.

Then, by measuring its acceleration we can now determine its mass using the simple equation F=m×a, except rewritten as m=Fa.

So we divide the force that we applied by the acceleration rate and we get the objects mass.

Without inertia this cannot be done.


∴ Answer is C

3 0
3 years ago
The compound zinc fluoride is a strong electrolyte. write the transformation that occurs when solid zinc fluoride dissolves in w
Svetach [21]
Strong electrolytes by definition are those compounds that completely dissociates into their component ions when dissolved in water. The chemical formula for the zinc fluoride is,
               ZnF2
This means that each formula unit is composed of one atom of zinc and 2 atoms of fluoride. The ions comprising the unit are Zn²⁺ and F⁻. The dissociation is as shown below,
              ZnF₂ -->  Zn²⁺  + 2F⁻
When dissolved in water it is expected that the compound dissociates into three different ions, one Zn²⁺ and two F⁻. 
4 0
3 years ago
What is the percentage of water in the hydrate CoCl2 • 6H2O? Show your work.
Lelu [443]
Hello!

First you have to find the molar mass of the molecules

C = 12
O = 16
2Cl = 71
6H2O = 108

Add them up to find the total molar mass

12 + 16 + 71 + 108 = 207g/mol

Divide the amount of water by the total molar mass

108 / 207 = 0.5217

Convert this to a decimal

0.5217 = 52.17%

The answer is 52.17%

Hope this helps!
7 0
4 years ago
What do we call the rows on the periodic table?<br>A. period<br>B. family<br>C. group<br>D. metals
TEA [102]

I am pretty sure the answer is periods. Hope it helps. If not what are the answer choices?

3 0
3 years ago
Read 2 more answers
Aqueous sulfuric acid reacts with solid sodium hydroxide to produce aqueous sodium sulfate and liquid water . What is the theore
Masja [62]

Answer:

71g (assuming experimental data)

Explanation:

The balanced equation for this reaction:

H_{2} SO_{4}(aq) + 2NaOH (s) → Na_{2}SO_{4} (l) + 2H_{2} O (l)

Molar mass of H2SO4 = 98.1 g/mol

molar mass of NaOH = 40g/mol

Molar mass of Na2SO4 = 142.04g/mol

⇒ 1 mole or 98.1g of H2SO4 will yield 1 ole of NaSO4; alternately, 2 moles or 49 ×2 = 80g of NaOH produces 1 mole of NaSO4.

<em>Therefore, limiting reactant is NaOH.</em>

Assuming actual experiment is 20g of NaOH,

1 mole - 40g

x moles - 20g = \frac{20}{40} = 0.5 moles

⇒1 mole of Na2SO4 - 142.04g

∴ 0.5 moles = 142.04 × 0.5

<u>= 71.02g</u>

7 0
3 years ago
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