Yes you can.
You can't unless they are melted. If you need to melt chocolate chips, you need to use cocoa powder, butter and sugar. Every ounce of chocolate can be replaced by 3 TBLS of Cocoa Powder (unsweetened) and 1 TBL of Butter and 3 TBLS of Sugar
Someone might use chocolate powder in cooking such as baking a cake. You can also use chocolate powder for making hot chocolate or a chocolate milkshake.
Coco (or cocao) beans are used in making chocolate.
In cookie recipes, the recipe probably means semi-sweet chocolate chips. Bakers' chocolate, which is usually unsweetened, would be far too bitter. But you have a lot of choices, depending on the taste you want in your cookies. Semi-sweet chocolate chips tend to be the most popular, but you could choose chocolate mint chips, peanut butter, butterscotch, white chocolate chips or chocolate pieces of various sizes, from mini-chips to the larger "chunks."
Every cHocolate industry must use coco as it is a main ingredent in chocolate
It depends on what your making, but you could usually use chocolate chips or chunked chocolate.
In most recipes you can use an equivalent amount of dried fruit, like raisins, nuts or another flavor of chips like peanut butter, cinnamon or vanilla chips. Obviously this will not work in a recipe that calls for melting the chips to get a chocolate flavor in the recipe. If the recipe calls for melting the chocolate chips- you can use 3 tablespoons unsweetened cocoa powder, 3 tablespoons sugar and 1 tablespoon butter or margarine for every 1 ounces of semi-sweet baking chocolate needed.
Whether chocolate chips can be used in place of a chocolate bar depends entirely on the recipe. If the chocolate bar is broken or chopped up, and the chips are the same type of chocolate - milk, semi-sweet or bittersweet - then the chips probably would be a good substitute.
You can use equal substitution between milk chocolate cips and semi-sweet chocolate chips, so 1 cup of either.
if you want.....
there is one chocolate chip in mini chocolate chips