What is the relationship between atoms, elements and compounds?

Relative dating determines the relative age of fossils according to A. their radioactive decay. B. their size. C. the layer of rock they're found in. D. the time of day when they were found.

Reliable results are results that can be ... A: communicated B: evaluated C: duplicated

What is the answer of this problem

A sample of gas occupies 9.0 mL at a pressure of 500.0 mm Hg. A new volume of the same sample is at a pressure of 750.0 mm Hg. Is the new pressure smaller or larger than the original? Therefore, is the new volume larger or smaller than 9.

Match the academic requirements with the careers. Cosmetologist

4. Given the chemical formulas of the following compounds, name each compound and state the rules applied to determine each name. Score • RbF • CuO • (NH4) 2C2O4 (Note: C2O4 - is called oxalate.)

The earth names for the 30 alien elements in order of atomic number

Worth 30 pts. Liquid vinegar and solid baking soda chemically react to form solid sodium acetate, liquid water, and carbon dioxide gas.

The electron configurations of two unknown elements X and Y are shown. X: 1s22s22p6 Y: 1s22s22p63s23p6 Which statement is most likely correct about the two elements?

Which is the best example of a closed system