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gregori [183]
3 years ago
9

Three blocks are shown here pls HELPPPP:

Chemistry
1 answer:
White raven [17]3 years ago
5 0

Answer: I am confident the answer is B

Explanation:

forgive me if im wrong

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S this equation balanced and in the lowest form? 4NH3 → 2N2 + 6H2
Mrrafil [7]
No it is not. the balanced equation is 2NH3 = N2 + 3H2
3 0
3 years ago
2.What is the chemical formula<br> for ammonium nitrite
jeyben [28]

Answer:

NH4NO3

Explanation:

I hope this helps you:)

5 0
3 years ago
Calculate the formula mass of each compound h2s2
Soloha48 [4]
<span> The </span>formula mass<span> is calculated by adding up all the atomic </span>masses <span>for every atom in the </span>formula<span>. First, we need to know the atomic masses of the atoms involved.

H = 1.01 amu
S =  32.06 amu

Formula mass = 2 x </span>1.01 amu + 2 x 32.06 amu = 66.14 formula mass unit
8 0
3 years ago
if 334.6 g of phosphoric acid is reacted with excess potassium hydroxide. the final mass K3PO4 produced is found to be 248g. wha
Orlov [11]

Answer:

                     %age Yield  =  34.21 %

Explanation:

                   The balance chemical equation for the decomposition of KClO₃ is as follow;

                            3 KOH + H₃PO₄ → K₃PO₄ + 3 H₂O

Step 1: Calculate moles of H₃PO₄ as;

Moles = Mass / M/Mass

Moles = 334.6 g / 97.99 g/mol

Moles = 3.414 moles

Step 2: Find moles of K₃PO₄ as;

According to equation,

                 1 moles of H₃PO₄ produces  =  1 moles of K₃PO₄

So,

              3.414 moles of H₃PO₄ will produce  =  X moles of K₃PO₄

Solving for X,

                      X = 1 mol × 3.414 mol / 1 mol

                      X = 3.414 mol of K₃PO₄

Step 3: Calculate Theoretical yield of K₃PO₄ as,

Mass = Moles × M.Mass

Mass = 3.414 mol × 212.26 g/mol

Mass = 724.79 g of K₃PO₄

Also,

%age Yield  =  Actual Yield / Theoretical Yield × 100

%age Yield  =  248 g / 724.79 × 100

%age Yield  =  34.21 %

3 0
3 years ago
Aluminum can react with oxygen gas to produce aluminum oxide (Al2O3). What type of reaction is this?
Pachacha [2.7K]

It's Synthesis, single replacement is incorrect.

6 0
3 years ago
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