What type of macromolecule carries out catalysis in biological systems?

A) proteins called enzymes

B) carbohydrates called starches

C) lipids called steroids

D) nucleic acids called DNA

E) carbohydrates called sugars

Determine whether the statement is true or false, and why? "Climate change could cause many habitats to be destroyed, leading to the extinction of many plant species." A.

How many moles are in 10.0 grams of sodium hydroxide?

How many milliliters of 0.02 M HCl are needed to react completely with 100 mL of 0.01 M NaOH? A) 200 mL B) 100 mL C) 75 mL D) 50 mL E) 25 mL

Gases are unique because it is the only phase that can be compressed can flow is composed of moving particles cannot be compressed

Ionic compounds are composed of what particles?

If A is slowly added to a solution containing 0.0500 M of B and 0.0500 M of C, which solid will precipitate first? The solubility product constant for A2B3 is 2.30*10-8. The solubility product constant for AC4 is 4.10*10-8.

Research three different types of fire extinguisher and explain how these can be used to put out different fires, you must relate this to the fire triangle and the section that is removed

If a mineral has a daughter to parent ration of 3:1 (three daughter atoms for every one parent atom), how many half-lives have passed since the mineral formed?

What is true of the enthalpy value of an intermediate reaction? A. It always has a negative enthalpy value B. It is multiplied by 2 if the intermediate reaction is multiplied by 2 C. It is the same as the total enthalpy of reaction D.

Calculate the percent composition of the compound that forms when 222.6 g N combines completely with 77.4 g 0. calculate to the nearest tenth of a percent.