A is an m times n matrix whose columns do not span set of real numbers R Superscript m , then the equation Ax Equals b is consistent for every b in set of real numbers R Superscript m ?

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

How many moles of al3+ ions are in 1.25 moles of al2o3

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided