In the reaction C7H16 + __O2 → 8H2O + 7CO2, what coefficient should be placed in front of O2 to balance the reaction?

7

8

11

no coefficient is needed

What process is aided by lightning legumes and soul bacteria

The rate of product formation by an enzyme-catalyzed reaction would be increased by

A 3.60 l gas sample is at a pressure of 95.5 kpa and a temperature of 25.0°c. if the gas sample weighs 6.10 g, calculate the molar mass of the gas.

What do organisms need in the space where they live

A fixed, single pulley that is used to lift a block does which one of the following? a. doubles the force required to lift the block b. decreases the force required to lift the block c.

Identify the characteristics of tornadoes and hurricanes

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

An element x forms an iodide (xi3) and a chloride (xcl3). the iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2xi3+3cl2â2xcl3+3i2 if 0.5500 g of xi3 is treated, 0.2596 g of xcl3 is obtained.