Why can't subscripts be changed?

The light produced from electrons comes from them doing what? A. falling back to a its original lower state after being excited by fire B. remaining in its lowest state even after being excited. by fire C.

Some baker of sourdough and a few other types of bread have what they call "starter dough". This dough contains yeast from which they make all their bread. Some starter dough is more than 100 years old.

What conditions increase the rate of weathering erosion and mass wasting?

A wheel with a radius of 18 centimeters has an axle with a radius of 3 centimeters. Calculate IMA of this system

What is the difference between a stable isotope and radioactive isotopes? A. Radioactive isotopes last longer B. Stable Isotopes are shorter C. There is no difference D. Radioactive isotopes last for less time

What happens to the conductivity of water when a base is dissolved in it

Henry Moseley organized the periodic table by A. atomic weight. B. atomic number. C. electronegativity. D. overall charge of atoms.

What happens when elements chemically combine? A.) All elements retain their original properties B.) New properties are former C.) Only metals retain their original properties D.) New elements are formed

Which element consists of positive ions immersed in a "sea" of mobile electronsa) sulfur b. nitrogen c. calcium d. chlorine?

1.87e3 m + 24 m + 5.43e-1 km + 1.561e2 km = km