Difference between homogeneous and heterogeneous mixture

What is the half-life of the fictitious radioisotope"pennium"?

What effect does lightning have on sandy soil? A) It forms silica. B) It forms quartzite. C) It creates obsidian. D) It creates fulgurites.

Given the balanced equation representing a reaction: F2 (g) + H2 (g) = = > 2HF (g) What is the mole ratio of H2 (g) to HF (g) in this reaction? (1) 1:1 (3) 2:1 (2) 1:2 (4) 2:3

How could you tell whether a liquid is honey or vinegar?

Which of these equations is balanced? A. 2Nac1+H2so4--->Na2so4+2Hc1 B. 2cao+H20-->CaC0h) 2 C. H20+co-->h2c03 D. MN+FE-->mns+fe

Identify 3 physical changes that could occur with a sheet of paper

What makes an acid or base strong?

In a laboratory, Carlos places one plate with grape jelly and another plate with cooked brown rice inside an ant farm. The next day, he finds that both plates are filled with ants.

Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)

A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?