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777dan777 [17]
3 years ago
13

Describe a group of family on the periodic table

Chemistry
2 answers:
lana66690 [7]3 years ago
6 0
Metals are all in the center of the periodic table and are all made up of metals
Elina [12.6K]3 years ago
4 0
Groups/families are the vertical columns, and each group has similar properties. For example group 18 is the noble gases, which are all unreactive.
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Can someone help me, please?
VikaD [51]
15. D is correct, exothermic reactions release heat

I am not sure about 16
7 0
3 years ago
Consider the chemical equations shown here.
vichka [17]

P₄0₆_{s} + 20₂_{g}   ⇒    P₄0₁₀_{s}

Explanation:

The overall equation for the reaction that produces  P₄0₁₀ is :

P₄0₆_{s} + 20₂_{g}   ⇒    P₄0₁₀_{s}

Now let us derive this equation:

Given equations:

   P₄_{s} + 30₂_{g}  ⇒ P₄0₆_{s}  equation 1;

   P₄_{s} + 50₂_{g} ⇒  P₄0₁₀_{s}  equation 2;

To get the overall combined equation, the equation 1 must be reversed and added to equation 2:

            P₄0₆_{s} ⇒ P₄_{s} + 30₂_{g}   equation 3

                      +

            equation 2:

 P₄_{s} + 50₂_{g}  +    P₄0₆_{s}  ⇒  P₄0₁₀_{s}  +  P₄_{s} + 30₂_{g}  

cancelling specie that appears on both sides and removing excess oxygen gas on the reactant side gives;

   

                  P₄0₆_{s} + 20₂_{g}   ⇒    P₄0₁₀_{s}

learn more:

Net equation brainly.com/question/2947744

#learnwithBrainly

5 0
3 years ago
Guys, look at the images. I'm so stuck, and I feel as if my brain is about to get ripped out.
Rama09 [41]

Answer:

You not alone lolI'm also tryna figure out the answer

3 0
2 years ago
In which reaction is a precipitation occurring
iogann1982 [59]

It is reacting as a chemical reaction .

6 0
3 years ago
When determining reaction orders by experiment, the most common procedure is to ______. Multiple choice question. keep all react
Scilla [17]

Answer:

change the concentration of one reactant while keeping the other concentrations constant

Explanation:

For a given reaction;

A +  B --> C + D

The reaction rate may be given as;

Rate = k[A][B]

In the above rate equation, the orders of both reactants ( A and B) is 1 . Reaction order is basically how the concentration of the reactant affect the rate of the equation.

The correct option is;

change the concentration of one reactant while keeping the other concentrations constant.

That way, one can monitor how a particular reactant affect the rate of the reaction.

7 0
3 years ago
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