Why is modern chemistry considered scientific? ?

Chemistry now depends on empirical data rather than mere reasoning.

Explanation:

Modern chemistry is considered scientific because it depends on the scientific method.

Science is empirical in nature. Hypothesis are confirmed based on careful observation and experimentation before inferences are made based on experimental observations.

Chemistry in ancient times was based mostly on thought and reasoning. A typical example is the phlogiston theory which had no experimental backup.

Today chemistry entirely depends on evidences which are reproducible rather than mere reasoning.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).