Why is it important that scientific theories can be modified as new information comes to light?

What is a chemical reaction? List an example

The ph of a fruit juice is 3.43.4. find the hydronium ion concentration, left bracket upper h 3 upper o superscript plus right bracketh3o+ , of the juice.

How many moles are in 50.15 g of mercury

5. Explain which heated up faster water (specific heat 4.18 J/gK) or oil (specific heat 1.67 J/gK) :

If 500.0 ml of 0.10 m ca2 + is mixed with 500.0 ml of 0.10 m so42-, what mass of calcium sulfate will precipitate? ksp for caso4 is 2.40*10-5. express your answer to three significant figures and include the appropriate units.

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.

If you go into the lab and dissolve 2.11 g of magnesium chloride in enough water to make 1500 ml of solution, what is the molarity of the resulting solution?

Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M

Which statement accurately describes the atoms of a specific element? explain your answer in complete sentences. A. A Neon, Ne, atom contains 10 electrons outside the nucleus and 11 neutrons inside the nucleus. OR B.

What is the volume of 2.00 moles of chlorine (cl2) gas at stp, to the nearest tenth of a liter?