Which of the following is an example of a chemical change? A. melting solid gold B. burning hydrogen gas C. breaking a sheet of glass D. dissolving sugar in water

Answers

Answer 1

Answer: The answer is B. Burning hydrogen gas

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Consider the situation. Scientists have developed an explanation of a phenomenon from several verified hypotheses. The explanation has been confirmed through numerous experimental tests.Which option best describes this explanation?

A. research question
B. scientific theory
C. scientific law
D.hypothesis

I think its B or D.

Answers

Answer:

B. scientific theory

Explanation:

The scientific theory explains the phenomenon observed in the natural world. It is based upon the scientific method. To arrive at the scientific theory a hypothesis is formed, experiments are designed and conducted, resulted evaluated, analyzed and conclusions are reached. scientific theory are based upon experiments that are tested under controlled conditions.

scientific theory

hope this helps :)

Describe the path of a carbon atom through the process of cellular respiration? PLEASE HELP!!!!

Answers

chill man chilllllllllllllllllllllllllllllll

A potential energy diagram is shown.
What is the activation energy of this reaction?

Answers

Answer:

Ea = 35 kJ.

Explanation:

Activation energy (Ea) is the difference between the potential energy of intermediate "activated complex/ peak" and reactants.

Ea = P.E. of products - P.E. of reactants = 65 kJ - 30 kJ = 35 kJ.

kindly find the attached image.

4 examples of bases

Answers

Answer:

Caustic Soda

Limewater

Milk of Magnesia

Bleach

Explanation:

How do you solve for limiting reagent with a balanced chemical equation? What are the steps?

Answers

Balance first the chemical equation given if it's unbalance before moving on to first step of mathematical computation.

What would happen if there no decomposers

Answers

producers would not have enough nutrients .

all the other categories above the decomposers would die off, the decomposers help get rid of the dead organisms and if there were no decomposers then there would be dead organisms and bones everywhere.

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