Below is a generic equation for a reaction. if i mix 2 units of a, with 6 units of b, which of the following is true? 2a + 3b ? c + 3da. there would be no reaction. b. both reactants will fully react. c. not enough information givend. substance b will be the limiting reactant. e. substance a will be the limiting reacta

substance A will be the limiting reactant. Substance B will be in excess. Option E is correct.

Explanation:

Step 1: Data given

We mix 2 units (moles) of A with 6 units(moles) of B

Step 2: The balanced equation:

2A + 3B → C + 3D

Step 3: Determine the limiting reactant

For 2 moles of A we need 3 moles of B to produce 1 mol of C and 3 moles of D

IF A would be the limiting reactant, it means it would completely be consumed ( 2 units).

B is in excess. there would react 2 *3/2 = 3 units.

There would remain 6 - 3 = 3 units of B

If B would be the limiting reactant, it means it would completely be consumed (6 units).

A would be in excess, there would react 6 * 2/3 = 4 units.

This would be impossible.

We can decide that substance A will be the limiting reactant. Substance B will be in excess. Option E is correct.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o