Agood reaction that gives off a bright light occurs when magnesium is burned in a bunsen burner. as a result, it binds with oxygen in the air. what is the balanced chemical equation for this reaction?

a)
mg + o → mgo

b)
mg + o2 → mgo2

c)
2mg + o → mg2o

d)
2mg + o2 → 2mgo

what is the question because that is not a question.

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.