The standard enthalpy of formation of a free element in its standard state is 0.0 kJ.
True or false.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Is a chemical message sent by another individual.

Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.