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Lelu [443]
3 years ago
11

Discuss how you can represent a chemical reaction using a system of linear equations. Use the chemical reaction from your projec

t 5 assignment as an example. My equation based off the last digit of my student ID 2 is as follows: KOH H2SO4 K2SO4+H20
Chemistry
1 answer:
Dmitry [639]3 years ago
5 0

Answer:

KOH + H_2SO_4 \rightarrow K_2SO_4 + H_2O

Explanation:

A chemical reaction describes the reaction between reactants to produce products.

A chemical equation is represented as a reactant present on the left-hand side of the equation if two or more reactants are present they are separated by the "plus" sign.

On the right side of the equation product is written and if more than one product is formed then these are separated by "plus" sign as in the reactants.

The reactant and the products are separated by an arrow, the head of arrow is in the direction of the product when the reaction is irreversible.

In the case of reversible reactions or chemical reactions that are present in equilibrium, the reactant and product are separated by a double-headed arrow.

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If you have a room that is 14 feet wide, 20.5 feet long, with 10 foot ceilings. What is the total
nikdorinn [45]

Answer:

i got 6

Explanation:

Because 14 feet divide by 20.5 gives you 0.6

so it 0.6 times 10 =6

4 0
3 years ago
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In an aqueous solution which substance yields hydrogen ions as the only positive ion *
GenaCL600 [577]
The question is incomplete. Complete question is
<span>In an aqueus solution, which substance yields hydrogen ions as the only positive ions in the solution? 1)NaH 2)HCOOH 3)LiOH 4) CH3CH2OH?
.............................................................................................................................
Answer: Correct answer is option 2, HCOOH

Reason: 
HCOOH is a formic acid. When mixed in water, it undergoes dissociation which can be represented as

HCOOH         </span>↔           HCOO-       +            H+

The compound NaH, will generate hydride ion (H-), while LiOH is an ionic compound, hence when dissolved in water it generated OH- ions. The compound CH3CH2OH is named as ethyl alcohol. This compound donot dissociate in aqueous medium. 
7 0
4 years ago
What is the mass, in grams, of a pure iron cube that has a volume of 3.80 cm?
Trava [24]

Answer:

2.66 g of Fe, can be obtained from the reaction

Explanation:

Let's think the reaction:

2Fe₂O₃   +  6CO  →   4Fe +  6CO₂

Ratio is 2:4, so If i have x moles of iron (III) oxide, I will produce the double of moles of Fe.

Mass / Molar mass = Mol

3.80 g / 159.7 g/m = 0.0237 moles

0.0237 moles . 2 = 0.0475 moles

Molar mass Fe = 55.85 g/m

Mol . Molar mass = Mass → 0.0475 m . 55.85 g/m = 2.66 grams

Explanation:

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3 years ago
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elixir [45]

Answer:

6400

Explanation:

8 0
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podryga [215]
To measure and determine the width of an MP3 player, it would be best to measure units of centimetres, cm. As this would be appropriate.
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