Answer:
<em>C: After 1 hour, the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3</em>
Explanation:
The degree of acidity or alkalinity/basicity of a substance is its pH. The value of pH ranges from 1 to 14 with the former being extreme acidity and the latter being extreme alkalinity while pH 7 is considered neutral.
Hence, any pH below 7 is considered acidic and above 7 is considered alkaline.
Reactions involving equal volumes of an acid and a base can end in acidic, alkaline or neutral pH depending on the strength of the acid/base involved;
- Equal volumes of strong acid with strong base will result in neutral pH
- Equal volumes of weak acid with strong base will result in alkaline pH
- Equal volume of strong acid with weak base will result in acidic pH
If substance A and B reacts with equal volume of the same acid under the same condition and the end result of A is a solution with pH of 9.2 and that of B is a pH of 8.3, it simply means substance A is a stronger base than substance B.
<em>Hence, the only outcome that supports the hypothesis that a tablet of PEPCID AC can neutralize more stomach acid than a tablet of Alka-Seltzer is that the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3 after being subjected to the same condition.</em>
If an indigestion is due to excess stomach acid, the only way to reduce the acidity is to consume a substance that will decrease the degree of acidity in the stomach. This means that the patient will need to consume something that is alkaline in order to increase the pH.
The word that you are looking for is complex.
Answer:
The <u>pituitary</u> gland controls water balance, growth and blood pressure.
Explanation:
The pituitary gland is also called hypophysis, and is a small gland located in the skull that is responsible for secreting hormones and coordinating the activity of other glands.
Hypophysis is usually divided into two portions, adenohypophysis or anterior lobe and neurohypophysis in posterior lobe. Among other functions, the pituitary gland is in charge of
- Water balance and blood pressure, through the antidiuretic hormone or ADH secreted by the neuro-pituitary.
- Growth, through the secretion of growth hormone or GH, secreted by the somatotropic cells of the adenohypophysis.
This gland is also responsible for the secretion of oxytocin and other hormones in charge of regulating endocrine glandular activity.
Regarding the other options:
- <u><em>Thymus</em></u><em> is a gland present in children and related to immune function.
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- <u><em>Thyroid</em></u><em> is responsible for secreting hormones that control basal metabolism.
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- <u><em>Pancreas</em></u><em> has exocrine and endocrine function, producing digestive enzymes and insulin and glucagon, respectively.
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Answer:
-Abiotic factors such as light, water, and temperature
-The more light, the faster the plant is able to photosynthesize, however, plants reach its level of maximum photosynthesis if the intensity of light is too high
-Temperatures above or below range of 0 degrees Celsius and 35 degrees C can cause damage to enzymes, ceasing photosynthesis
-If too much or too little water is applied, plant cells may wither and die, or explode
Explanation:
<h3><u>Answer;</u></h3>
- mid-ocean ridges,
- abyssal plains,
- trenches,
<h3><u>
Explanation</u>;</h3>
- <u>Ocean basins refer to the part of the surface of the earth which extends to the sea from the continental margins.</u>
- All ocean basins are characterized by the primary features such as; <em><u>mid-ocean ridges, abyssal plains, trenches, and seamounts.
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- Mid-ocean ridges are the most impressive feature of all ocean basins, which are long-continuous volcanic mountain ridges, they mark areas where oceanic crust sections are pulling or stretching apart.
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