Answer:
Boron
Explanation:
The group III A is also known in the periodic table as group 13. The members of the group begin to appear in the second period.
At the beginning of this group III A is boron. Boron is a member of group III A as well as a member or period 2.
Boron is a metalloid and has only three valence electrons as other group III A elements.
Answer:
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Explanation:
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Answer:
I think it is iron conducts electricity and heat
Answer : The volume of gas needed are, 90 L
Explanation : Given,
Volume of = 60 L
Now we have to determine the volume of needed.
As we know that at STP, 1 mole of gas contains 22.4 L volume of gas.
The given balanced chemical reaction is:
By the stoichiometry we can say that, 2 moles of react with 3 moles of oxygen gas to give 2 moles of gas and 2 moles of water vapor.
From the balanced reaction we conclude that,
As, volume of react with volume of gas
So, volume of react with volume of gas
Thus, the volume of gas needed are, 90 L
There are two H2 .There are four nitrogen atoms present. There are two NH3 formed