Answer the following question given this paragraph: Saponification describes the alkaline hydrolysis reaction of an ester. The term saponification originally described the hydrolysis of long-chain esters called fatty acid esters to produce soap molecules, which are the salts of fatty acids. One such soap molecule is sodium stearate, formed from the hydrolysis of ethyl stearate. Q: What is the alkaline hydrolysis reaction of an ester called? Choices: - instantiation - fermentation - resorption - saponification A:
saponification
(Question)
Answer the following question given this paragraph: The bonds between the atoms need to be rearranged. That is the definition of a chemical reaction. And all chemical sections need energy to get started. Q: What do all chemical sections need to get started? Choices: - speed - work - pressure - energy A:
(Answer)
energy
Ques: Answer the following question given this paragraph: In displacement versus time graphs, the slope of the line is the velocity of the object. In this case of a velocity versus time graph, the slope of the line is the acceleration. If you take any segment of this line and determine the to ratio, you will get 6.0 m/s 2 which we know to be the constant acceleration of this object. Q: When two of these meet, the result is often a storm? Choices: - air pockets - electromagnetic waves - tectonic plates - air masses A:
Ans: air masses
(Q).
Answer the following question given this paragraph: Earthquakes are used to identify plate boundaries ( Figure below ). When earthquake locations are put on a map, they outline the plates . The movements of the plates are called plate tectonics. Q: What is the movement of plates called? Choices: - fracking - migration - volcanic activity - plate tectonics A:
(A).
plate tectonics
Ques:Answer the following question given this paragraph: The student athlete in Figure below is practically flying down the track! Running takes a lot of energy. But you don't have to run a race to use energy. All living things need energy all the time just to stay alive. The energy is produced in chemical reactions. A chemical reaction is a process in which some substances, called reactants, change chemically into different substances, called products. Reactants and products may be elements or compounds. Q: What is a process where some substances called reactants change chemically into different substances called products? Choices: - crystals reaction - carbon reaction - non-chemical reaction - chemical reaction A:

Ans:chemical reaction
Answer the following question given this paragraph: Arteries carry blood away from the heart, while veins return blood to the heart. Q: What carries blood away from the heart? Choices: - veins - pores - capillaries - arteries A:
arteries