Answer:
Cu(NO3)2 --> MM187.5558
NiNO3 *COEF2* --> 120.6983
Answer:
The correct answer is - C27H36N2O10.
Explanation:
C27H36N2O10 is the chemical formula of polyurethane foam which is a linear polymer manufactured by reacting polyols and diisocyanates. Polyurethane foam is used as a thermal insulator.
It used as filling material for various walls such as partition walls inside your house, determines the maintenance of proper insulation. It is not an acidic material that will dissolve easily. It is used not just as wall-filling material but also for sealer and filling in furniture and carpets.
Basically team B would win since it is exerting a force of 900N unlike team A ( you can tell by doing 4900N minus 4000N ). It is very unbalanced.
Answer:
4.86×10^23 molecule of Pb
Explanation:
Based on that equation, for every 2 moles of ammonia, you get 3 moles of lead.
So:
2 mol NH3/ 3 mol Pb
Using this ratio we can find the amounts of either molecule. Given 5.38 mol NH3:
(5.38 NH3)(3 Pb/ 2 NH3) = (5.38)(3/2) mol Pb = 8.07 mol Pb
Then, we just need to use Avagadro's number to get the number of molecules.
(8.07)(6.02×10^23) = 4.86×10^23 molecule of Pb
The correct answer is option d, that is, atoms of the element.
As the atoms are neither destroyed nor created in a chemical reaction, the sum of the mass of the products in a reaction must be equivalent to the sum of the mass of the reactants.
The chemical reactions must be balanced, they must exhibit a similar number of atoms of each element on both the sides of the equation. As a consequence, the mass of the reactants must be equivalent to the mass of the products of the reaction.
