Chemistry, 07.05.2020 00:12 hhgjhbmbhg266

Anyone know this? i will give to the one who helps me out.

Choose all 5 that are true about a catalyst.

Question 1 options:

You can use a graph to show how a catalyst lowers the activation energy.

A catalyst does change in a chemical reaction.

A catalyst does not change in a chemical reaction. It lowers the activation energy (like a short-cut).

The Nox, hydrocarbons and carbon monoxide in a car are examples because they are poisonous.

It raises the activation energy.

The gold and platinum in a car are examples because they help make the reactions happen to get rid of the poisons.

Enzymes such as lactase in your body are examples.

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 05:50, mrylenastewart

What are transitions between a liquid and a solid called? identify which way they are transitioning

Answers: 2

continue

Chemistry, 22.06.2019 07:40, sadcase85

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

Answers: 1

continue

Chemistry, 22.06.2019 16:00, matt16913

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

Answers: 1

continue

Chemistry, 22.06.2019 20:30, huangjianhe135

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?

Answers: 3

continue

You know the right answer?

Anyone know this? i will give to the one who helps me out.

Choose all 5 that are true ab...