Which term describes a trace, print, or remain of an organism preserved over time in a rock?

A. skeleton

B. fossil

C. mineral

D. sedimentary rock

Given the reaction: Ba (OH) 2 (aq) + H2SO4 (aq) - - >BaSO4 (s) + 2 H2O (l) + energy As the barium hydroxide solution is added to the solution of sulfuric acid, the electrical conductivity of the acid solution decreases because the (1) volume of the

Is hydrogen malleable, ductile or brittle

Convert 72g of O2 to moles

0.25 miles of sodium chloride is dissolved to make 0.05 liters of solution. What is the molarity A: 2 M B: 5 M C: 4 M D: 3 M

On the periodic table, how do the physical and chemical properties of the elements change?

What is in a banana? give me specifics?!

When 17.28 mL of a 0.078 M aqueous solution of Na2SO4 is combined with 11.30 mL of a 0.20 M aqueous solution of NaCl and 7.84 mL of a 0.26 M aqueous solution of KCl, what is the total concentration of Na + in the combined solution?

What mass of carbon can 3000 J of energy raise from 12°C to 40°C?

How do you balance __Mg + __HCl - - > __MgCl2 + ___ H2

How many grams of methane, CH4 are produced from the complete reaction of 5.15 moles of carbon monoxide, CO