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!

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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