Cómo balancear una ecuación química

A length of #8 copper wire (radius = 1.63 mm) has a mass of 24.0 Kg and a resistance of 2.061 Ohm per Km. What is the over all resistance of the wire?

Atom behaves electrically neutrol. Why?

Herbivores obtain energy directly from

There are four major methods of purification in the chemistry laboratory. Which of the given techniques is not one of the four most common methods for separation and purification? distillation recrystallization extraction chromatography sublimation

Which of the following is the correct word equation for the reaction described below? When sulfuric acid reacts with sodium hydroxide, sodium sulfate and water form

Does a physical change affect the identity of a substance

If the cost of electricity is 8 cents/kWh, how much will it cost to use the light for a whole year (365 days) ?

Place the object into the graduate cylinder and record the new volume of water

Why nucleus is stable?

Which answer defines exothermic reaction