Read the given text carefully. And answer the questions that follow.

A.     For questions 1 to 5, refer to the text below.

Solutions are uniform mixtures of molecules inwhich any of the phases of matter can be dissolved in another phase. Whethersolids, liquids, or gases, solution chemistry is important because mostchemical reactions, whether in the laboratory or in nature, take place insolutions. In particular, solutions with water as the solvent – aqueoussolutions – are the core of all biology. Extending the particle model of matterto solutions enables chemists to predict what will happen to a deep-sea diverwho breathes different mixtures of gases, or to the life forms in the ocean asCO2 levels rise in the atmosphere. The majorityof chemical reactions happen in solutions—whether inside an espresso machine orin a human cell. For example, when we breathe, the nitrogen in the airdissolves in our blood. Henry’s Law gives us the power to predict, prevent, andtreat “the bends”—a life-threatening condition that can happen to scuba diverswhen nitrogen in the blood comes out of solution and forms gas bubbles.Solution chemistry provides tools to measure the concentration of components ofsolutions, like the CO₂ levels in ocean water. Knowing theconcentrations of components in solutions can help determine the health of theworld. 

In the following sentence, which word servesas a definition of the word “solution”?

The statement “carbon dioxide in water” means that carbon dioxide is dissolved in water. Therefore, water act as a

According to Henry’s Law, the word “the bends” refers to

Aqueous is derived from the word “aqua” which means

Based on the given text, why it is important to measure the carbon dioxide levels of ocean water?

Vinegar has long been used worldwide as a basic seasoning in the preparation and cooking of certain foods, because its sharp taste makes it so useful and versatile. It adds flavor to vegetable and meat products. It is one of the ingredients of salad dressings, sauces, such as tabasco, and tomato products, such as ketchup, mustard, and aspics. Mixed with oil and salt it makes the classic vinaigrette, and it can be used as a condiment for salad and as a sauce for cold, cooked vegetables, meat, and fish. Because of its acetic acid content and low pH, vinegar is used as a preservative for both domestic use and the food industry. It is in fact used for the preservation, or pickling, of a wide variety of foods such as vegetables, meat, fish products, and spiced fruits. For this purpose, the food-processing industry uses mainly distilled vinegar and, synthetic vinegar.

           Commercial vinegar is essentially a solution of acetic acid in water. A bottle of vinegar has 3.78 g of acetic acid per 100.0 g of solution. Assume that the density of the solution is 1.00 g/ml. The volume of the solution is equal to its mass divided by its density.

Solvent: water; solute: __________

Solve for the volume of vinegar that has 3.78 g of acetic per 100.0 g of solution.

The “vinaigrette” means

What is the equivalent of 3.78 g to kg? ( 1 kg = 1000 g)

Which of the following uses of vinegar is NOT mentioned in the text?

What is the body mass index of Rona if her weight is 45kg and her height is 1.50m using the formula BMI=W/H²?

In computing the BMI using the formula BMI=W/H², what is the value of H²if Liza’s height is 1.40m?

If Marlon’s height is 162 cm, what is his exact height if it is converted into a meter using the computation of height/100?

Compute the Personal Maximum Heart Rate (PMHR) if Marlon is 16 years old using the formula PMHR= (TMHR=220) – Age.

Liza is 14 years old taekwondo athlete at the City of Balanga National High School. She is required to record the result of her Training Heart Rate (THR)for a week before she can join the Division competition. Compute her THR using  the formula below if her PMHR is 206.

 Moderate THR = PMHR x 0.40

 Vigorous THR  = PMHR x 0.60