Why do the elements of the same group have similar properties?

Which can cause auroras and disrupt satellite tranmission

What is the PH of a 0.05M solution of the strong base Ca (OH) 2 at 25C

In the following reaction, how many grams of nitroglycerin C3H5 (NO3) 3 will decompose to give 120 grams of water? 4C3H5 (NO3) 3 (l) 12CO2 (g) + 6N2 (g) + 10H2O (g) + O2 (g) The molar mass of nitroglycerin is 227.0995 grams and that of water is 18.

When both the speed and direction of an object's motion is known, what else is known? the distance the object has traveled the velocity of the object the acceleration of the object the average speed of the object

Which substance can not be decomposed by a chemical change? (1) ammonia (3) propanol (2) copper (4) water

Which of the following transfers carbon from the nonliving environment to the living environment? Photosynthesis Cellular respiration Burning Decomposing

Which term describes this reaction? CH3Br (aq) + OH - (aq) - > CH3OH (aq) + Br - (aq) a. addition b. condensation c. elimination d. substitution

The elements of which group are nonreactive? halogens alkaline earth metals noble gasses alkali metals

Which best describes the definition of Lewis acids and bases? a general definition based on electron structure a general definition based on hydrogen ion concentration a specific definition based on a compound's ability to accept protons a specific

Question 22 Which change would cause the volume of a balloon to increase? A increasing the temperature of the balloon B increasing the atmospheric pressure C removing gas from the balloon D placing the balloon under water