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3 years ago

Is the equation balanced? Why or why not?

Chemistry

1 answer:

anygoal [31]3 years ago

8 0

Answer:

Yes because the law of conservation of matter is followed. There are equal numbers of atoms of all elements in the

reactants and products.

Explanation:

A balanced equation conform to the law of conservation of matter. While unbalanced equation suggests that matter has been created or destroyed.

Na3PO4 + 3KOH —> 3NaOH + K3PO4

A careful observation of the above equation proved that the equation is balanced is balanced because there are equal numbers of atoms of all elements in the

reactants and products.

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Stoichiometric coefficients indicate the ratio between ________of given substances in a chemical reaction

Cloud [144]

Answer:

Explanation:

7 0

3 years ago

The following chemical equation is not balanced: I2 + Na2S2O3 NaI + Na2S4O6 When this chemical equation is correctly balanced, w

marshall27 [118]

Answer:

The answer is B

4 0

3 years ago

How many moles of O2 are needed to react completely with 35.0 mol C2h2

Wittaler [7]

Hey There!:

2 C2H2 + 5 O2 = 4 CO2 + 2 H2O

2 moles C2H2 ----------- 5 moles O2

35.0 moles C2H2 ------- moles O2

moles O2 = 35.0 * 5 / 2

moles O2 = 87.5 moles

hope this helps!

6 0

2 years ago

2. A student mixes the above indicator with a sample of battery acid, an extremely strong acid. What

Nesterboy [21]

should be clear acid if im not mistaken

3 0

2 years ago

Precision Problems:

Lorico [155]

Answer:

$Precision = 2.70 \± 0.1\ cm$

Explanation:

Given

The data in the table

Required

Follow the steps appended to the question;

Step 1: Calculate the Mean or Average

Mean = Summation of lengths divided by number of teams;

$Mean = \frac{2.65 + 2.75 + 2.80 + 2.77 + 2.60 + 2.65 + 2.68}{7}\ cm$

$Mean = \frac{18.9}{7}\ cm$

$Mean = 2.70\ cm$

Step 2: Get The Range

$Range = Highest - Lowest$

$Range = 2.80cm - 2.60cm$

$Range = 0.2\ cm$

Step 3: Divide Range by 2

$Approximate\ Range = \frac{1}{2}Range$

$Approximate\ Range = \frac{1}{2} * 0.2\ cm$

$Approximate\ Range = 0.1\ cm$

Step 4: Determine the Precision

$Precision = Average \± Approximate\ Range$

Substitute 2.70 for Average and 0.1 for Approximate Range

$Precision = 2.70 \± 0.1\ cm$

4 0

2 years ago