Answer the following question given this paragraph: Some women experience cramping and pain before and during menstruation. Q: Some women experience cramping and pain before and during what monthly cycle? Choices: - inflammation - reproduction - deformation - menstruation A:
menstruation
(Question)
Answer the following question given this paragraph: When a colorless solution of lead(II) nitrate is added to a colorless solution of potassium iodide, a yellow solid called a precipitate is instantly produced ( Figure below ). A precipitate is a solid product that forms from a reaction and settles out of a liquid mixture. The formation of a precipitate may also indicate the occurrence of a chemical reaction. Q: What is produced when a colorless solution of lead nitrate is added to a colorless solution of potassium iodide? Choices: - blue solid precipitate - brown solid precipitate - purple solid precipitate - yellow solid precipitate A:
(Answer)
yellow solid precipitate
Ques: Answer the following question given this paragraph: Q: What is the amount of moisture in the atmosphere? Choices: - static - mixture - heat - humidity A:
Ans: humidity
(Q).
Answer the following question given this paragraph: Bases are ionic compounds that produce hydroxide ions when dissolved in water. Q: What are ionic compounds that produce hydroxide ions when dissolved in water? Choices: - isotopes - acids - enzymes - bases A:
(A).
bases
Ques:Answer the following question given this paragraph: Some reactions need extra help to occur quickly. They need another substance, called a catalyst. A catalyst is a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction. The catalyst can go on to catalyze many more reactions. Q: What is the term for a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction? Choices: - a mechanism - an acid - a contribute - a catalyst A:

Ans:a catalyst
Answer the following question given this paragraph: Q: Most terrestrial vertebrates have what type of lungs? Choices: - extra - external - mechanical - internal A:
internal