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aleksandrvk [35]
3 years ago
5

Classify each substance as either a reactant or product in the chemical reaction. Drag the appropriate items to their respective

bins. ethanol, carbon dioxide, water, oxygen
Chemistry
1 answer:
8090 [49]3 years ago
8 0

Answer :

C_2H_5OH and O_2 are reactants.

CO_2 and H_2O are products.

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

In the balanced chemical reaction, the reactants and products are separated by right arrow.

The species present on the left side of the right arrow is the reactant and the species present on the right side of the right arrow is the product.

When ethanol react with oxygen gas then it gives carbon dioxide and water as a product.

The balanced chemical reaction will be:

C_2H_5OH+3O_2\rightarrow 2CO_2+3H_2O

In the given balanced reaction,

C_2H_5OH and O_2 are reactants.

CO_2 and H_2O are products.

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what is the chemical reaction in which the exchange of electropositive and electronegative ions occurs in aqueous solution​
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chemical reaction are the processes in which new substances with new properties of from are called as chemical reaction ex double displacement reaction

Explanation:

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3 years ago
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Which substance is an example of an element?
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Copper is an element. An element is a substance that is entirely made from one type of atom.
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An atom has the following isotopes in the the following abundances. 20 10Z 30% , 19 10Z10% , 18 10Z 60% What is the average atom
Vera_Pavlovna [14]

The average atomic mass of the atom that has the following isotopes in the following abundances: 20 10Z 30% , 19 10Z10% , 18 10Z 60% is 18.7.

<h3>How to calculate average atomic mass?</h3>

The average atomic mass of an isotopic element is the weighted average of the atomic masses of the naturally occurring isotopes of an element.

According to this question, the atom has the following isotopes in the following abundances: 20 10Z [30%] = 30/100 × 20 = 6

19 10Z [10%] = 10/100 × 19 = 1.9

18 10Z [60%] = 60/100 × 18 = 10.8

The sum of these masses is the average atomic mass and is calculated as follows:

6 + 1.9 + 10.8 = 18.7

Therefore, the average atomic mass of the atom that has the following isotopes in the following abundances: 20 10Z 30% , 19 10Z10% , 18 10Z 60% is 18.7.

Learn more about average atomic mass at: brainly.com/question/13753702

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4 0
2 years ago
Which of the following is an example of an endothermic process?
KIM [24]
Melting, boiling, and evaporation, in general, are endothermic processes.
7 0
3 years ago
The planet Mercury takes 176 days to do one spin around its pole. Compared to the Earth,
Tanya [424]

Answer:

The sun would appear to move more slowly across Mercury's sky.

Explanation:

This is because, the time it takes to do one spin or revolution on Mercury is 176 days (which is its period), whereas, the time it takes to do one spin or revolution on the Earth is 1 day.

Since the angular speed ω = 2π/T where T = period

So on  Mercury, T' = 176days = 176 days × 24 hr/day × 60 min/hr × 60 s/min = ‭15,206,400‬ s

So, ω' = 2π/T'

= 2π/15,206,400‬ s

= 4.132 × 10⁻⁷ rad/s

So on  Earth, T" = 1 day = 1 day × 24 hr/day × 60 min/hr × 60 s/min = ‭‭86,400‬ s

So, ω" = 2π/T"

= 2π/86,400‬ s

= 7.272 × 10⁻⁵ rad/s

Since ω' = 4.132 × 10⁻⁷ rad/s << ω" = 7.272 × 10⁻⁵ rad/s, <u>the sun would appear to move more slowly across Mercury's sky.</u>

4 0
3 years ago
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