Use the problem below to answer the question:
when a current is passed through a solution of salt water, sodium chloride decomposes according to the following
reaction:
nacl + h2o - naoh + cl2 + h2
is this equation balanced?

Explain that newton first law,second law and third law of motion?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)