3 years ago

What is the relationship between a chemical reaction and a chemical equation?

Chemistry

1 answer:

Sergio039 [100]3 years ago

4 0

Answer:

a chemical equation is a method of representing chemical reaction by using symbols and formulas

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Which of the following is an example of a molecule?

xxMikexx [17]

O2 is an example of a molecule

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3 years ago

A student makes a sandwich with several layers of bread and cheese. Then the student cuts the sandwich and says it models how a

Ksenya-84 [330]

Answer:

Rock layer and sandwich layer is almost the same.

Why are rock layers are like sandwiches?

This geologic structure is called an anticline. Now gently bend your sandwich so that the layers are bowed downwards, thus creating a syncline. The presence of anticlines and synclines indicate strong forces that often form mountain ranges.

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2 years ago

What is a scientific word for baking soda

igor_vitrenko [27]

Sodium bicarbonate is commonly known as baking soda. The scientific name is NaHCO3. Baking soda is an alkaline compound found in crystalline form in nature.

Hope this helped

Brainliest is appreciated

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~ Emmy

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3 years ago

What is the energy of a photon that emits a light of frequency 7.21 x 1014 Hz? A. 4.78 x 10-19 J B. 2.76 x 10-19 C. 1.0910-19 J

bazaltina [42]

Answer:

E = 4.78×10^−19 J

Explanation:

The chemical equation for the energy of a photon is given by:

E =hν , where h is the Planck constant and ν is the frequency.

E =hν = 6.626×10^−34 Js × 7.21×10^ 14

s−1 = 4.78 × 10^−19 J

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2 years ago

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Which of the following is the correct angle between the atoms in a tetrahedral molecule? A. 90o B. 109o C. 120o D. 270o

sineoko [7]

The correct angle between the atones in a tetrahedral molecule would be B. 109 degrees.

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