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fomenos
2 years ago
12

Chemists use the periodic table to organize the elements. What are some ways in

Physics
1 answer:
Alisiya [41]2 years ago
3 0

Answer:

A. It groups elements that have similar properties.

C. It allows scientists to predict how a particular element will interact with others,

Explanation:

The periodic table of elements is a very useful table in chemistry which allows for the grouping of elements based on their atomic number.

Atomic number of elements is the number of protons they contain. The periodic table is based on the periodic law.

On the periodic table, there are trends and patterns from groups to groups and periods to periods.

  • It has been shown that elements in the same group have similar chemical properties. This is due to the number of valence electrons they have.
  • Also, based on the chemical and physical properties of a group, we can predict if the elements in one group will react with elements in another group
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A battery supplies ________ to the circuit.
MariettaO [177]

Answer:

Electrical energy

Explanation:

<em>Hope </em><em>It </em><em>helps </em><em>you </em>

6 0
2 years ago
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If the final speed of an object as is strikes the ground is 77 m/s and it was in the air for 6.5 seconds. What was the initial d
azamat

Answer:

The answer to your question is: 13.2 m/s

Explanation:

final speed (fs) = 77 m/s

t = 6.5 s

gravity (g) = 9.81 m/s2

initial speed (is) = ?

Formula

fs = is + gt     from this equation we clear "is" = fs - gt

Substitution                         is = 77 - (9,81)(6.5)

Process                               is = 77 - 63.8

                                            is = 13.2 m/s

8 0
3 years ago
A car starts from rest and accelerates to 14 m/s in 2 seconds. What was its acceleration
Romashka [77]

Answer:

7m/s^2

Explanation:

using v=u+at

since the car started from rest, u=0 , v=14m/s t=2s

a =acceleration.

14=0+a×2

14=0+2a

14=2a

a= 14/2 =7

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7 0
2 years ago
It is estimated that 1kg of body fat will provide 3.8 * 10^7 J of energy. A 67kg mountain climber decides to climb a mountain 35
xz_007 [3.2K]
During a climb UP the mountain, gravity does NO work on the climber.
Actually, it's more correct to say that gravity does NEGATIVE work
on him.  The climber has to DO the positive work to haul himself up.
  
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For the guy in this problem:

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If he eats no candy bars on the way, and completely depends on
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                   =          0.06 kg of fat.

That's only about 2.1 ounces.  We KNOW he'll lose more weight than that,
climbing 11,000 feet.  That's because climbing is pretty inefficient. 
In addition to the potential energy you have to give your body weight,
you also have to expend energy breathing, digesting, metabolizing,
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4 0
3 years ago
Primary colors of light?
brilliants [131]

The primary colors of light are:

1. Green

2. Red

3.Blue

4. Yellow

5. White

6. Cyan

7. Magenta

5 0
3 years ago
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