Imagine you are in a laboratory. you are exploring the following reaction: a + b → c when the product c is created, bubbles form. when 10ml of a is added to 10ml of b, the reaction takes twenty seconds. your teacher gives you three unknown substances (x, y, and z), one of which is a catalyst for the reaction. design an experiment to test substances x, y, and z to determine which one is a catalyst for the reaction.

Make four different test groups.

Test 1: Add 10mL of A to 10mL of B, and insert substance X into the reaction. Record the time.

Test 2: Add 10mL of A to 10mL of B, and insert substance Y into the reaction. Record the time.

Test 3: Add 10mL of A to 10mL of B, and insert substance Z into the reaction. Record the time.

Test 4: This is your control group. Only add 10mL of A to 10mL of B, then record the time for the reaction to occur.

The catalyst is which ever substance caused for the reaction time to speed up. I hope that this helped! Please leave brainliest!

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.