Which of these is a body fossil?

A. shrimp burrow B. Plant Imprint C. Claw Print D. dinousaur egg

Which of these best explains why the hydrogen atoms in a water molecule are attracted to Cl - ions in sodium chloride (NaCl) ? A. The hydrogen atoms have + 1 charges. B. The hydrogen atoms share electrons equally with the oxygen atom. C.

What is the purpose of researching elements on the periodic table?

How are electrons excited

What is the name of the ionic compound CaO?

What mineral has 2 sugar-cube sized, irregularly shaped pieces. Brassy-yellow in color with metallic luster. Flat surfaces look like little squares. Feels quite heavy. Has a blackish streak.

You might separate a mixture of aniline, p-cresol, benzoic acid, and toluene using ordinary laboratory reagents. 1. dissolving the mixture in a water-immiscible organic solvent - NaHCO3, H2O, CH2Cl2 2.

A chemical element is a pure substance that consists entirely of one type of what

Calculate the mass percent composition of sulfur in Al2 (SO4) 3. Calculate the mass percent composition of sulfur in Al2 (SO4) 3. 28.12 % 42.73 % 35.97 % 9.372 % 21.38 %

What is a striking a match an example of

In any ordinary chemical reaction, matter is neither created nor destroyed; it is simply changed from one chemical substance to another. This principle is called the Law of: