An atom of silicon-30 contains 14 protons. How many electrons does it have?

What function does the central vacuole in a plant cell performs

How can one determine the median of a data set?

What is hybridization?

Which is a characteristic of a strong base? It turns pink phenolphthalein colorless. It turns blue litmus paper red. It releases H + ions into a solution. It removes H + ions from solution. O O

The unit of measurement "mal" describes what property of a substance?

Energy stored in the bonds that hold together the atoms and molecules of all substances is called Energy stored in the bonds that hold together the atoms and molecules of all substances is called

Which of the following requires an oxidizing agent? Al yields Al3+ 2 O yields O2 Cl2 yields 2 Cl- Ag + yields Ag

If a color change occurs when two solutions are mixed has a chemical reaction likely occurred?

Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca (OH) 2 (aq) + 2HCl (aq) → CaCl2 (aq) + 2H2O (l) CaO (s) + 2HCl (aq) →CaCl2 (aq) + H2O (l), ΔH = - 186kJ CaO (s) + H2O (l) →Ca (OH) 2 (aq), ΔH =

1. Calculate the end velocity of a rocket that traveled 16km in 2 seconds. distance time 2. Calculate the rockets acceleration m with a start velocity of 0m/s and the end velocity from #1 for 10 seconds.