1. A hypothesis and a theory are related because

A.a Theory is always used to develop a hypothesis

B.They are both developed in the absence of observations.

C. the data collected when a hypothesis is tested can support a theory.

D. an experiment is done before the formation of both a hypothesis and a theory.*****

2.which word describes the energy in an exergonic reaction?

A. created

B. relased****?

C.absorbed

D. destroyed

3. whcich describes the progress of photosynthesis?

A. carbon dioxide + water ->glucose + oxygen

B.glucose+oxygen ->carbon dioxide+ water

C.water+oxygen -> glucose+carbon dioxide****?

D. glocose+ carbon dioxide-> water+ oxygen

4.The role of an enzyme in a chemical reaction is to change which of the following?

A. the type of rection

B. the activation energy of the reaction

C. the pH at which the reaction occurs***?

D. the temperature at which the reaction occurs

they didnt give me anytihng this year no book no nothing'

noperonis

1. Incorrect

2. Correct
3. Incorrect
4. Incorrect

mhm can you explain because im bearly learning how to this stuff

What does your text say about the first question?

Don't you understand my question?

1. If you got information from an experiment, you can use that to support what?

3. Plants do use water, but they don't take oxygen, they use something else. Try again.

4. An enzyme in a chemical reaction doesn't change the pH, it changes something else. Try again.

3. soo b.?

3. Nope, plants use water, but not oxygen. They release glucose after the photosynthesis. Try again!

1. The correct answer is D. an experiment is done before the formation of both a hypothesis and a theory.

To understand why this is the correct answer, let's first define what a hypothesis and a theory are:

- A hypothesis is a proposed explanation or prediction for a phenomenon or observed data. It is a tentative statement that can be tested through experiments or observations.

- A theory, on the other hand, is a well-substantiated explanation of certain aspects of the natural world. It is based on a large body of evidence and has been extensively tested and confirmed through experimentation and observation.

The relationship between a hypothesis and a theory is that a hypothesis is formulated as a possible explanation for a specific observation or phenomenon. It is then tested through experimentation and observation to determine its validity. If the data collected during these tests supports the hypothesis and consistently aligns with its predictions, it can contribute to the development or support of a theory.

Therefore, the correct answer is D. an experiment is done before the formation of both a hypothesis and a theory, as experiments are conducted to test the validity of a hypothesis and gather the necessary data for the development or support of a theory.

2. The correct answer is B. released.

In an exergonic reaction, energy is released. An exergonic reaction is a chemical reaction that releases energy as it progresses. This energy release occurs due to the breaking of chemical bonds in the reactants and the formation of new bonds in the products.

Therefore, the correct term to describe the energy in an exergonic reaction is "released."

3. The correct answer is A. carbon dioxide + water -> glucose + oxygen.

The progress of photosynthesis, which is the process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose (a sugar) and oxygen, can be described by the following equation:

carbon dioxide + water -> glucose + oxygen

During photosynthesis, plants use energy from sunlight to convert carbon dioxide and water into glucose, which is a form of stored energy, and oxygen is released as a byproduct.

Therefore, option A correctly describes the progress of photosynthesis.

4. The correct answer is B. the activation energy of the reaction.

An enzyme is a protein molecule that acts as a catalyst in a chemical reaction. It speeds up the rate of a reaction by lowering the activation energy required for the reaction to occur. Activation energy is the energy required to initiate a chemical reaction and break existing bonds in reactant molecules.

Enzymes accomplish this by binding to specific substrates (reactant molecules) and facilitating their conversion into products. They provide an alternative pathway for the reaction that has a lower activation energy, making it easier for the reaction to occur.

Therefore, the correct role of an enzyme in a chemical reaction is to change the activation energy of the reaction. It does not change other factors such as the type of reaction, pH, or temperature at which the reaction occurs (options A, C, and D).