Answer:
12.89 moles
Explanation:
Before we solve the question, we have to balance the equation of the reaction first. The balanced reaction will be:
2 NO + 2 H2→ N2 + 2 H2O
There are 180.5g of N2 produced, the number of produced in moles will be: 180.5g / (28g/mol)= 6.446 moles
The coefficient of H2 is two and the coefficient of N2 is one. Mean that we need two moles of H2 for every one mole of N2 produced. The number of H2 reacted will be: 2/1 * 6.446 moles = 12.89 moles
Answer: 4 and 6
Explanation: the double bonds are alternating in the chain
C—C=C—C=C—C=C—C=
1 2 3 4 5 6 7 8
Answer:
Density =1.27g/cm
Explanation:
Density is the mass per volume of a substance.
That is
Density = mass/volume
Given that mass = 14g
Volume = 11cm³
Therefore
Density = 14/11 g/cm³
Density =1.27g/cm³
I hope this was helpful, please mark as brainliest
Lithium,
Electrons are 3
Protons are 3
Neutrons are 4
<span> I would guess that calcium (Ca), of all the group 2 elements, is most like magnesium (Mg), because it has the most similar size (atomic and ionic radii) to Mg. </span>
