Ounces are a unit of weight, so yes, 1 ounce of anything = 1 ounce of anything else.
One ounce!
well it depends on how big the chocolate chip is
Tortilla chips will weigh around 26gms in 1 cup.
6 ounces
12 ounces of Chocolate Chips equal 12 squares of baking chocolate.
The best way to know for sure is to invest in a digital scale (food or postage-type)and weigh all your food. I tested the previous answer for myself with Lay's brand Potato Chips (just plain, no ruffles) and found that there were, in fact, 24 chips (whole, each approx. the same size) in an ounce. Dorito's Nacho Cheese were 10 chips/1 oz. Tostito's Restaurant Style Corn Chips were 6 chips/1 oz. Note: manufacturers will also round up to the nearest ounce on labeling (i.e. 0.6 oz becomes 1.0 oz.)
They both weigh one gram.
That depends on the size of the marshmallows in question.
There are approximately 40 large marshmallows in a 10 ounce bag. This varies from bag to bag, as each marshmallow is going to weigh a different amount.
In recipes, generally one square means one ounce.
Observe the weight measure on the bag that the chips are in. Example: If the bag has a net weight of four (4.0) ounces, then one quarter of the bag will be one ounce... etc. 1 ounce = approx 11 chips it is approx 28 gms ( its all depends on the thickness of chips)
Melted Chocolate weighs as much as it did when it wasn't melted.