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GREYUIT [131]
3 years ago
13

Why are the elements 57 through 71 and 89 through 102, found separately at the bottom of the table?

Chemistry
1 answer:
Dovator [93]3 years ago
8 0
Elements from 57 to 71 are Lanthanoids and from 89 to 103 are Actinoids. Simply I would say Actinoids have less similarity in chemical properties than Lanthanoids. On the other hands, Actinoids have randomized chemical strutural bonds.
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As matter changes, what happens to the energy?
OlgaM077 [116]

Energy, Temperature, and Changes of State

Matter either loses or absorbs energy when it changes from one state to another. For example, when matter changes from a liquid to a solid, it loses energy. The opposite happens when matter changes from a solid to a liquid.

4 0
3 years ago
Help plz i need it my mom is mad at me for not knowing this
ohaa [14]
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5 0
3 years ago
You were rushing to get to school on time and dropped your breakfast food! Choose one atom in that food item and explain the sto
OLga [1]

Answer:

I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.

Explanation:

3 0
3 years ago
two sides of a triangle have the following measures . Find The range of possible measures for the tird side
crimeas [40]
To find the third side you would use Pythagorean theorem which is a²+b²=c². 

A and B being the 2 legs and C being the hypotenuse.
 
Example: ( sorry for the really odd not really a triangle, triangle...)
  |  \
6|     \  ?                    6²+9²=C²
  |_______              36+81=C²
        9                             117=C²
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if you need to get the leg you just fill in the numbers.



3 0
3 years ago
When the common ion effect is in action, the equilibrium of a system will shift to: Select the correct answer below:
I am Lyosha [343]

Answer:

a. decrease the amount of the common ion in the system

Explanation:

The correct option is - a. decrease the amount of the common ion in the system

Reason -

Adding a common ion decreases solubility, as the reaction shifts toward the left to relieve the stress of the excess product.

Adding a common ion to a dissociation reaction causes the equilibrium to shift left, toward the reactants, causing precipitation.

6 0
3 years ago
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