Close

2021-05-14

Which reason provides the best explanation of why a bar graph was selected to show the data in the table?

Which reason provides the best explanation of why a bar graph was selected to show the data in the table?

Which reason provides the best explanation of why a bar graph was selected to show the data in the table? Bar graphs are used to compare separate items. Bar graphs are used when data are continuous. Bar graphs are not good for categorical data.

Which describes the complex carbohydrate cellulose?

Cellulose is a polysaccharide consisting of a linear chain of several hundred to many thousands of linked glucose units. Cellulose is an important structural component of the cell walls of plants and many algae.

What will happen if a person does not consume the minimum daily requirement of carbohydrates?

When you don’t get enough carbohydrates, the level of sugar in your blood may drop to below the normal range (70-99 mg/dL), causing hypoglycemia. Your body then starts to burn fat for energy, leading to ketosis. Symptoms of hypoglycemia include: Hunger.

Which statement best describes both insulin and glucagon?

They both store energy, but only glucagon is a carbohydrate. They are both hormones that regulate blood-sugar levels. They are both hormones that help fight disease.

Which statement best describes the action of glucagon quizlet?

Which statement best describes the action of glucagon? Liver cells convert glycogen to glucose, raising blood sugar. Hormonal release is constant and is not effected by sensory input. Antidiuretic hormone is a posterior pituitary hormone.

Which statement best describes the relationship between activation energy and rate of reaction?

Answer. The statement which best describe the relationship between activation energy and rate of reaction is (2) Reducing the activation energy can increase the rate of a reaction.

Which best describes how an enzyme affects the rate of a chemical reaction?

Which best describes how an enzyme affects the rate of a chemical reaction? It lowers the activation energy of the reaction.

What is positive catalyst give example?

A positive catalyst, or just catalyst for short, are substances that help hasten a chemical reaction. Some typical examples include biological catalysts Amylase, Maltase, Protease, and Lipase; as well as popular chemicals like sulfuric acid and manganese dioxide.

What is the difference between positive catalyst and negative catalyst?

Positive catalyst: A catalyst which increases the rate of reaction is called positive catalyst. Such catalyst decreases activation energy by accepting a smaller path, so rate of reaction is increased. Negative catalyst (Inhibitor): A catalyst which decreases or retards the rate of reaction is called negative catalyst.

What is negative catalyst with example?

Negative catalysis (Inhibitor or retarder): Chemical reactions are sometimes retarded by the presence of a foreign substance this substance is known as a negative catalyst. Examples: Phosphoric acid serves as negative catalyst for the decomposition of H2O2. Alcohol act as negative catalyst for the oxidation of Na2SO3.

When a product act as a catalyst then it is called as?

(iv) Induced catalyst: When the product of any chemical reaction acts like the catalyst of any other chemical reaction then it is called induced catalyst. Enzyme.

What is the function of positive catalyst?

Positive Catalysts It increases the rate of reaction by lowering the activation energy barriers such that a large number of reaction molecules are converted into products, thereby the percentage of yield of products increases.

Is Delta H affected by a catalyst?

Explanation: Catalysts work by reducing the activation energy of a reaction, by providing an alternative reaction pathway. Catalysts do not alter the enthalpy change, ΔH , of a reaction.

What is true catalyst?

Explanation: A catalyst is a substance that increases the rate of a reaction, typically by lowering the activation energy required to initiate a reaction. The catalyst does not affect the equilibrium of a reaction, and is not consumed during the reaction.