The answer is C.) equal to. When balancing chemical equations, its important to make sure each coefficient is accurate to each element to ensure that the mass of the reactants and products are equal.
All you need to do is to look at both sides of the equation and see who has the same element, state, coefficient, and charge and those will be your spectator ions.
In this question, the spectator ions would be 
and 
.
Answer:
15 m/min
Explanation:
You take the 1500 divide by 10 and your answer is 15
Answer:
Chemical indicator, any substance that gives a visible sign, usually by a color change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow color to an alkaline solution.
