Is an outer planet with an unusual orbit

A train travels 97 kilometers in 2 hours, and then 96 kilometers in 2 hours. What is its average speed?

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which pair of symbols represent a metal loud and a noble gas?

How many grams of nitroglycerin are needed to produce 25.0 grams of CO2

Which of these statements best explains why pure water has a pH of 7? Pure water contains only H2O molecules, but pH is based on the concentration of H3O + ions. Each molecule of water can dissociate to form 7 H3O + ions.

Which terms identify types of chemical reactions? (1) decomposition and : sublimation (2) decomposition and synthesis (3) deposition and sublimation (4) deposition and synthesis

What element behaves MOST like magnesium (Mg) ? A) S B) Si C) Sn D) Sr

It was determined through analysis that a compound, sodium carbonate with a molar mass of 263 g/mol contained 68.4% water. determine the toilet number of water molecules in this hydrate

Which 1.0 M solution has the lowest pH?

If the heat of fusion of water is 3.4 * 102 j/g, the amount of heat energy required to change 15.0 grams of ice at 0°c to 15.0 grams of water at 0°c is