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Chemistry

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Cards in this guide (15)
What is the specific heat of a substance

The amount of heat a substance can hold.

How would a catalyst change the reaction energy diagram
Answer

a catalyst speeds up the reaction

A catalyst can change the reaction energy diagram is that a catalyst speeds up the reaction.

How can meat be cooked

Meat can be cooked with anything that produces heat. Other methods for cooking meat can include "curing" which is done with salt rather than heat.

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

increased temperture causes rate or reaction to increase.

How do you treat patients

Patients should be treated with humble and love like the way babies are treated.

Which of the following would most likely be spontaneous

A reaction that produces heat

What is a result of the specific heat differences between land and ocean

Breezes are created when there are specific heat differences between land and ocean.

What is Ka for H2CO3 aq H aq HCO3 aq

Ka= [h+][HCO3-]/[H2CO3]

Which of the following would have the best thermal conductor properties

A cup made of metal. (Apex)

How does increasing the molality in th cells protect the animals

By increasing molality in certain chemicals within their cells they are protecting themselves from freezzing

A concentration unit expressed in units of moles of solute per kilogram of solvent

This is called molality.

What part of the engineering process is the scientist engaged in

making a plan

If 6 moles of a compound produce 84 J of energy what is the delta H reaction in jmol

84 J/6 moles = 14 J/mole = ∆H

The arrival of new diseases and strains of bacteria that are resistant to older drug treatments makes which step of the engineering process essential

looking for improvements

What equation shows how rate depends on concentrations of reactions

The equation is called the rate law equation. For the reaction aA+bB =>cC+dD the rate law would be rate = k[A]^m[B]^n where k is the rate constant and m and n are the "order" with respect to each reactant. m and n must be determined experimentally and may or may not be the same as the coefficients a and b.

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