Arepresentation of a chemical reaction that uses symbols to show the relationship between the reactants and the products is called a
a.
symbolic statement
b.
chemical equation
c.
mole ratio
d.
chemical proportion

select the best answer from the choices provided

(B) chemical equation

Explanation:

Chemical equation is a representation of how reactant form products using chemical symbols.

The reactant are usually in the left hand side of the equation, while the products are kept at the right hand side of the equation. A long arrow is placed in-between them to indicate the direction of the reaction. Some chemical reactions requires number to balance the amount of reactant and products in the equation since law of conservation of matter must be strictly adhered to. Eg

NaOH + HCl ———》 NaCl + H2O

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.

it doesn't. it was imagined up in the middle ages.