The answer is B , help this help…
Google overcame its competitors because the developers knew how to market and knew how to make a product that consumers wanted. In the early days of the internet, search engines where filled with adds, links, tools like calculators and calendars. While having links to Facebook or Reddit, and having the calculators and calendars seemed helpful, it crowded the page. Those search engines had too much going on to the point it became unhelpful. Google understood that people wanted a search engine that had its purpose and did it well. It's simple, does it's job, and it doesn't overwhelm the consumer when they want to look something up.
Think of it this way, if you're trying to look up a recipe, do you want to go to the page that had 20+ other links and flashy colors and pop up adds, or a simple search bar that will take you right where you need to go with no distractions?
The answer should be
Select the adjective phrase to complete the sentence.
A sunset in a slow manner descended to the earth.
Answer:3O2 + 4NH3 ---> 2N2 + 6H2O.
Explanation:
Let me give you (c) as an example: If you start out with 4.5 mol O2, assuming you want to completely react all the oxygen you'd need to add how much ammonia? The ratio of moles of O2 versus moles of NH3 is
(moles NH3) / (moles O2) = 4/3, or in other words,
moles NH3 = (4/3) x moles O2.
Therefore you need to add (4/3) x (4.5 moles) = 6 moles NH3.
The question says it want you to calculate the numbers of moles of all products and reactants for each case. So, that makes
(c) 4.5 moles [O2] + 6 moles [NH3] -------> 3 moles [N2] + 9 moles [H2O].
You need to do the same for (a) and (b)
===================================
2) The balanced net reaction is:
Mg + 2HCl -------> MgCl2 + H2
According to this reaction, 2 moles of HCl are consumed for every mole of Mg added.
