Ques: Q: When an acid and base solutions react, they produce water and a neutral ionic compound known as what? Choices: - sand - pollen - dirt - salt A:
Ans: salt

Ques: Q: Hemolymph bathes organs directly in arthropods and most molluscs, due to an open type of what system? Choices: - nervous - pulmonary - reproductive - circulatory A:
Ans: circulatory

Ques: Q: What enthalpy change is observed in an exothermic reaction? Choices: - positive - no change - entropy - negative A:
Ans: negative

Ques: Q: Momentum is directly related to both mass and? Choices: - mass - intensity - speed - velocity A:
Ans:
velocity