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Ierofanga [76]
3 years ago
13

What is/are defined in elements of the same group?

Chemistry
1 answer:
rusak2 [61]3 years ago
4 0

Answer:

C

Explanation:

Elements in the same groups have similar chemical/physical properties. The reason the answer isn't electron configuration is that if this was the case, there would be no reason for transition metals to exist as they can have a varying amount of electrons in their outer shell.

For example, all alkali metals (Group 1) turn into positive ions when reacting and Halogens (Group 7) all turn into negative ions after reacting.

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An acorn falls from a tree and accelerates at 9.8 m/s2. It hits the ground in 0.67 s. What is the speed of the acorn when it hit
ivolga24 [154]
Acceleration means that while it's falling, its speed will increase by 9.8 m/s
every second.  That's the acceleration of everything that falls near the Earth's
surface, no matter how heavy or light the object is.

In 0.67 seconds, then, the speed of the acorn increases from zero to

                 (0.67 x 9.8) = <u>6.57 m/s</u> .
8 0
3 years ago
The component that dissolves the other component is called the
zheka24 [161]

Answer:

The component that dissolves the other component is called the solvent. Solute – The component that is dissolved in the solvent is called solute

6 0
3 years ago
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Ethane is a very combustible gas. Write a balanced equation for the complete oxidation reaction that occurs when ethane (C2H6) b
umka2103 [35]

Answer: 2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O

Explanation:

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According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products formed must be equal to the mass of reactants taken. In order to get the same mass on both sides, the atoms of each element must be balanced on both sides of the chemical equation.

The balanced combustion reaction is,:

2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O

4 0
4 years ago
20 According to the kinetic molecular theory for an ideal gas, all gas particles(1) are in random, constant, straight-line motio
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According to the kinetic molecular theory for an ideal gas, all gas particles "<span>have collisions that decrease the total energy of the system" but this is not always the case. </span>
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3 years ago
What are tissues made up of?
Aleks [24]

Answer should be:

Cells

5 0
3 years ago
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