What is Chemistry and how do you relate in real life?

Chemistry

2 answers:

e-lub [12.9K]3 years ago

7 0

Answer:

Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and icons: their composition,structure,properties, and behavior and the changes they undergo during a reaction with other substances.

Explanation:

Neko [114]3 years ago

3 0

It is known that chemistry is a BIG part of our everyday lives. You can find chemistry in daily life in foods you eat, air you breathe, soap, your emotions and literally every object you can see or touch. For example, Chemistry explains how food changes as you cook it, how it rots, how to preserve food, how your body uses the food you eat, and how ingredients interact to make food.
Hope it helps! :)

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Ksenya-84 [330]

A dog is trained to sit and shake hands. These traits are most likely?

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hope this helps

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3 years ago

In the chemical formula 2so2, how many total atoms of sulfur (s) are there? 1 2 4

babunello [35]

Sulfur has the coefficient of 2, and nothing else. This indicates Sulfur has 2 atoms.

Oxygen on the other hand, has a subscript of 2, as well as the coefficient of 2. Multiplying those, and you see Oxygen has 4 atoms.

So your answer is 2

Also remember there is a 2 in front of S meaning there are 2 Sulfurs.
If it was S02 it would be 1 Sulfur as there is no number in front of sulfer. 

Remember the number in front of a element, represents how many atoms there are :)

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2 years ago

How much energy in kJ is associated with a radio wave of wavelength 1.2 X 10^2 m?

eduard

It's very simple.

Energy = $\frac{hc}{\lambda}$

where, h= Planck's constant = 6.6 x $10^{-34}$ $m^2 kg/s$

c= speed of light = 3 x $10^{8}$ m/s
$\lambda$ = wavelength

So, energy = $\frac{6.6 \times 10^{-34} \times 3 \times 10^{8}}{120}$

= 1.65 x $10^{-27}$ J
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Which of the following particles is the smallest in radius

Gnesinka [82]

Answer:

Its helium

Explanation: Because teh effective nuclear charge holds the valence ectrons clos to the nuclues. the Atomic radius would decrease as you move from the led=ft and right of the perodic table

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