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antiseptic1488 [7]
4 years ago
7

In a chemical equation, the arrow points towards what?

Chemistry
2 answers:
stepan [7]4 years ago
3 0
The arrow doesn’t “point” to anything really, it means that the reactants form (or change) into the products.
MakcuM [25]4 years ago
3 0

Answer:

it actually does point toward something it points toward the equation i think

Explanation:

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Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural
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<u>Answer:</u> The net chemical equation is given below.

<u>Explanation:</u>

To determine the net chemical equation, we will look into the intermediate steps:

<u>Step 1:</u> Formation of ammonia from hydrogen and nitrogen gas.

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)        ......(1)

<u>Step 2:</u> Formation of nitric acid from ammonia and oxygen gas.

NH_3(g)+2O_2(g)\rightarrow HNO_3(g)+H_2O(g)      .....(2)

The net chemical equation for the formation of nitric acid from hydrogen gas, nitrogen gas and oxygen gas follows by adding both the equations, we get:

N_2(g)+2O_2(g)+3H_2(g)\rightarrow HNO_3(g)+H_2O(g)+NH_3(g)

By Stoichiometry of the reaction:

1 mole of hydrogen gas reacts with 2 moles of oxygen gas and 3 moles of hydrogen gas to produce 1 mole of nitric acid, 1 mole of water and 1 mole of ammonia.

Hence, the net chemical equation is given below.

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Nadusha1986 [10]
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gypsum is insoluble in water. you are asked to purify a sample of gypsum that is contaminated with a soluble salt.
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Answer:

a. The apparatus required to purify gypsum sample are: Bunsen burner, beaker, Filter Funnel, stirring rod, the filter paper.

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1. Add water to the gypsum sample in a beaker.

2. Use the stirring rod to mix the mixture well.

3. Filter off the excess solid from the mixture using the filter paper and filter funnel.

4. Put the filtered mixture over the bunsen burner and evaporate the excess water from the mixture.

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Answer:

separare pâlnii de picurare balon cotat. 1. 2. 3. 4 5 6 7. 8. 9. 1 ... Mod de lucru: 25 g Na2SO4∙7H2O se dizolvă în cantitatea minim ... Exemple: NaOH – hidroxid de sodiu.

Explanation:

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