What best describes the sun?

A huge ball of fire

A mass of solid matter

Molten matter held together by gravity

A mass of protons and magnetic

Suppose you use 0.0150 liter of a 2.50 M solution of silver nitrate. Assuming the reaction goes completion how much silver sulfide is produced

IF you've eaten 45% of a box of chocolate cereal that has 13oz when you buy it how many oz of the cereal have you eaten

Which of the following is called Energy of activation or Eact? A) The energy released during an exergonic reaction. B) The additional energy required for reactions to occur spontaneously. C) The energy consumed during an endergonic reaction

What does Hydrogen and Nitrogen make when mixed?

How many liters of 3.0 M NaOH solution will react with 2.4 mol H2SO4? (Remember to balance the equation.) H2SO4 + NaOH → Na2SO4 + H2O 1.2 L 1.6 L 2.4 L 2.8 L

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.