Question

question 2
10 pts
how can you tell when a new element symbol is starting in a chemical formula?
look for the capital letter
look for the arrow
look for the coefficient
look for the subscript

Explanation:

In chemical formulas, element symbols follow the rule that the first - letter of an element symbol is capitalized. If there is a second letter in the symbol, it is lowercase. So, a new element symbol starts with a capital letter. Arrows are used in chemical equations to show the direction of a reaction, coefficients are used to balance equations and represent the number of moles of a substance, and subscripts indicate the number of atoms of an element in a compound.

Answer:

look for the capital letter