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lorasvet [3.4K]
3 years ago
15

A reddish layer of rust can form on old iron nails and bikes. In this chemical reaction, iron reacts slowly with oxygen in the a

ir. The chemical name for rust is iron oxide. What are the reactant(s) and product(s) of this reaction? Write down the equation, in words, for the formation of rust.
Chemistry
2 answers:
Molodets [167]3 years ago
5 0

Answer:

Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:

Explanation:

iron + oxygen → iron oxide

victus00 [196]3 years ago
4 0

Answer:

Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:

iron + oxygen → iron oxide

Explanation:

This was the answer straight from Plato. I hope that this helped you, please mark me the brainiest, like and rate my answer if it did! :)

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What mass of kcl in grams must be added to 500 ml of a 0. 15 m kcl solution to produce a 0. 40 m solution.
iren [92.7K]

91.4 grams

91.4 grams of kcl in grams must be added to 500 ml of a 0. 15 m kcl solution to produce a 0. 40 m solution.

C = mol/volume

2.45M=mol/0.5L

2.45M⋅0.5L = mol

mol = 1.225

Convert no. of moles to grams using the atomic mass of K + Cl

1.225mol * \frac{39.1+35.5}{mol}

mol=1.225

=1.225 mol . \frac{74.6g}{mol}

=1.225 . 74.6

=91.4g

therefore, 91.4 grams of kcl in grams must be added to 500 ml of a 0. 15 m kcl solution to produce a 0. 40 m solution.

What is 1 molar solution?

In order to create a 1 molar (M) solution, 1.0 Gram Molecular Weight of the chemical must be dissolved in 1 liter of water.

58.44 g make up a 1M solution of NaCl.

To learn more about molar solution visit:

brainly.com/question/10053901

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3 0
1 year ago
Given a 0.200 M solution of anserine at its isoelectric point and ready access to 0.100 M HCl, 0.100 M NaOH and distilled water,
vekshin1

Solution :

Given :

Amount of anserine solution = 0.200 M

pH value is = 7.20

Preparation of 0.04 M solution of anserine from the 0.2 M solution.

0.2 M x x = 0.04 M x 1000 ml

x = 200 ml

So the 200 ml of 0.2 M anserine solution is required to prepare0.04 M of anserine.

0.1 M x x = 0.04 x 1000 ml

x = 400 ml

Therefore, 400 ml of HCl is needed.

6 0
2 years ago
Liquid octane CH3CH26CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. What is
weqwewe [10]

Answer:

Explanation:

2CH₃(CH₂)₆CH₃ + 25O₂ = 16CO₂ + 18H₂O.

2 moles                25 moles                18 moles

mol weight of octane = 114

72 g of octane = 72 / 114 = .6316 moles

144 g of oxygen = 144 / 32 = 4.5 moles of oxygen.

2 moles of octane reacts with 25 moles of oxygen

.6316 moles of octant will react with 25 x .6316 / 2 moles of oxygen

= 7.895 moles

So oxygen is the limiting reagent

25 moles oxygen produces 18 moles water

4.5 moles of water produces 18 x 4.5 / 25 moles of water

= 3.24 moles of water

= 3.24 x 18 grams of water

= 58.32 grams of water .

3 0
3 years ago
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