On a weather map, which symbol on a line indicates a cold front? A. semicircle B. squares C. full circles D. triangle

The following diagram shows an amoeba and a plant. which of the following identifies the primary difference between the two organisims? Question 1 options: A) The amoeba can produce its own food. B) The amoeba contains only one cell.

The combustion of a hydrocarbon X (30 cm3) with 350 cm3 of oxygen at STP resulted in the formation of 440 cm3 of gaseous products.

During which geological process is rock material transported from one location to another? A: deposition B: erosion C: chemical weathering D: mechanical weathering

One of the most common household toxins, benzene can be found in the following: mothballs air fresheners dry cleaned clothing paint supplies

Match with the correct definition. A. Each electron state can hold no more than two electrons, which must have opposite spins. B. Electron sharing between two adjacent atoms such that each atom assumes a stable electron configuration. C.

How many moles of HI are present at equilibrium when 2.0 moles of H2 is mixed with 1.0 moles of I2 in a 0.50 L container and allowed to react at 448oC. At this temperature K = 50.

A laboratory manual gave precise instructions for carrying out the reaction described by the chemical equation, C2H6O + O2 C2H4O2 + H2O.

2Al (s) + 3Pb (N03) 2 (aq) 2Al (N03) 3 (aq) + 3Pb (s) How many molecules of Pb (N03) 2 are used in the reaction? How many oxygen atoms are used in the reaction? How many moles of Al (N03) 3 are formed?

Where are digestive enzymes found in the body

If the length of one side of a square is 12.0 m, what is the perimeter of the square in units?