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Chemistry

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Colten Mayer

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Cards in this guide (21)
What is meant by the rate of reaction

The rate of reaction refers to the speed at which a reaction proceeds.

An increase in temperature will cause the rate of a chemical reaction to

increased temperture causes rate or reaction to increase.

What happens to the reaction rate as the reactants get used up in a reaction

The rate of the reaction begins to decrease as reactants are used up

Which equation is an expression of the rate law

Rate = k[A]m[B]n

What does it mean if keq1

I suspect it could be " k eq 1" , or "k =1".

What information does an equilibrium constant give about a reaction

It tells whether products or reactants are favored at equilibrium

What causes the reaction rate to decrease as the reaction progresses

The concentration of the reactants decreases.

How does increasing the temperature affect a reaction

Increasing temperature affects a reaction in two ways:

1) at higher temperatures the molecules are moving around faster and collisions and reactions are more frequent, so the reaction - both forward and reverse - speed up.

2) at higher temperatures, the equilibrium state will shift. In some cases it will shift the equilibrium towards the product. In other cases, it will shift it back towards the reactants.

What is the rate constant of a reaction if rate 1 10-2 molLs A is 2 M B is 3 M m 2 and n 1

4.5 (moI/L)/s -apex

What describes a reaction that reaches equilibrium

The product and reactants reach a final, unchanging level.

Which of these describes an ethical dilemma that drug designers could face

A drug for blood pressure is absorbed in the colon. It is effective, but occasionally it can erode the colon walls.

A prosthesis may be nonbiocompatible or otherwise endanger the well-being of the patient it is intended to help.

What is the name of the field of study with laws that describe how energy is transferred to different locations and forms

Thermodynamics

What increases the chance of reaction when two molecules collide

increasing the concentration in the molecue

Which of these correctly lists the order of the engineering process

Identify a need, research the background, make a plan, do the work, evaluate the results, look for improvements. (APEX)

Which of the following best describes a bronsted lowry acid base reaction

Acid + Base = Salt+Water (APEX)

How can the placebo effect cause problems in an experiment

The placebo effect can causes the dependent variable to change without any causative reason. This distorts the results for the control set in an experiment.

A scientist has just developed a composite drug to fight seasonal allergies. What is the next step in the engineering process before the drug is released

Testing the composite drug in a trial run.

The process of using computers and robots to conduct thousands of tests to determine the interaction between different compounds and a disease is called what

High-throughput screening

A scientist is giving patients a sugar pill that has no medical properties. What is this pill called

Placebo

What of the following is a characteristic of a weak acid

It does not dissociate completely in water

What does it mean if Keq is less than 1

Reactants are favored over products in the reaction.

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