Which of these is a body fossil

A - wooly mammoth tusk

B - dinosaur footprint

C-fossilized animal droppings

D - shrimp burrow

In a balanced equation, coefficients always represent a the ratio of volumes of substances b the volume ratios of reactants and products c the mole ratios of reactants and products d the number of atoms present

Innermost layer of the two mantle layers; composed of rock and cooler than the core

What is the oxidation state of strontium (Sr) ?

What is the effect on the concentration of hydrofluoric acid, hydronium ion, and fluoride ion when the following are added to separate solutions of hydrofluoric acid? (a) HCl (b) KF (c) NaCl (d) KOH (e) HF

What type (s) of atoms make up the element carbon? A. carbon only B. oxygen only C. carbon and oxygen

What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.167 O A nonpolar covalent B. moderately polar covalent C.

Which statement is true about oxidation and reduction in an electrochemical cell? (1) Both occur at the anode. (2) Both occur at the cathode. (3) Oxidation occurs at the anode and reduction occurs at the cathode.

For a solar eclipse to occur,

How many times does the citric acid cycle occur for each molecule of glucose?

Which planet is made of mostly gas