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Rainbow [258]
3 years ago
8

How is ethanol different from carbon dioxide?

Chemistry
2 answers:
ira [324]3 years ago
6 0

Answer:

B

Explanation:

Ethanol is C2H6O. Carbon diozidex is CO2. Ethanol has hydgrogen, where carbon dioxide does not.

Kazeer [188]3 years ago
5 0
Answer: C

Explanation: cardio dioxide consists of one carbon atom and one oxygen atom
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Why do transitioning electrons release or absorb energy?
Tom [10]

Answer:

when an electron jumped into higher energy level  from lower energy level it must absorbed the energy because with small amount of energy it can not jumped into higher energy level.

when it came back to lower energy level it release extra energy.

Explanation:

The electron is jumped into higher level and back into lower level by absorbing and releasing the energy.

The process is called excitation and de-excitation.

Excitation:

When the energy is provided to the atom the electrons by absorbing the energy jump to the higher energy levels. This process is called excitation. The amount of energy absorbed by the electron is exactly equal to the energy difference of orbits.  For example if electron jumped from K to L it must absorbed the energy which is equal the energy difference of these two level. The excited electron thus move back to lower energy level which is K by releasing the energy because electron can not stay longer in higher energy level and comes to ground state.

De-excitation:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations. this energy is exactly equal to the energy difference between the orbits. The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum .

6 0
4 years ago
Read 2 more answers
Reactant A contains 40 J of energy, and Reactant B contains 33.5 J of energy. The reactants combine to form product AB, which co
Wittaler [7]

Answer:

A

Explanation:

Energy is absorbed because the product has more energy than the reactants have.

8 0
3 years ago
Please answer! Tap on the photo❤️
lina2011 [118]

Answer:

E

Explanation:

no of grams in picture c = A+B

= 200+10 =210

for D its also 210 ..... the water already contains the salt .....so the mass of salt has added to the mass of water which is still 210

that's all .... have fun

6 0
3 years ago
How to find reaction force
shtirl [24]

Answer:

Let the sum of moments about a reaction point equal to ZERO (ΣM = 0) ...

Let the sum of vertical forces equal to 0 (ΣFy = 0)

Explanation:

8 0
3 years ago
Based on the law of conservation of matter, describe the relationship between the mass of the recants, and the mass of the produ
BaLLatris [955]

Answer:

Mass of reactant and mass of product must be equal.

Explanation:

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

In given photosynthesis reaction:

6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂

there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

5 0
3 years ago
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