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If you were building a device that used a chemical reaction to preserve food like those used in refrigerators what kinds of reactions would you experiment with A. exothermic B. combustion C. e?
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What chemical reaction produces the sun and energy?
These are not chemical reactions but thermonuclear reactions.
The initial reactions in photosynthesis are know as the?
The initial reactions in photosynthesis are the light dependent reactions and the light independent reactions
Which of the following photosynthetic reactions describe the reactions in which photolysis occurs?
Photochemical Reactions, ONLY.
What are reactions that absorb energy from the environment?
Reactions that absorb energy from the environment are referred as endothermic reactions.
What are true reactions of the Sun?
They are fusion reactions, and The force to get the reactions to occur comes from gravity.
List 5 types of chemical reactions and an example of each?
Single replacement: A + BC ==> AC + BDouble replacement: AB + CD ==> AD + CBSynthesis: A + B ==> CDegradation: C ==> A + BCombustion: CnH2n+2 + 2nO2 ==> nCO2 + 2nH2O
What are some examples of an experiment?
Experiment can be scientific or psychological. They can use samples and observations to gain insight or mix chemicals together to demonstrate reactions.
What allows chemical reactions to take place under controlled conditions?
a controlled experiment
In the Miller-Urey experiment what was used as energy source to drive chemical reactions?
Electrical discharge
How do you experiment properties of sodium chloride?
- Measuring the physical properties- Making many chemical reactions with NaCl
What is a flat bottomed flask used for in chemistry?
Some uses are:- experiment of chemical reactions- distillation- rotating evaporators
What terms applies to the part of the experiment when the mice were first shocked and ran around excitedly looking for an escape route?
Alarm reactions phase a+
What do you use to help you make observations during a scientific experiment?
Use a pen and paper, observe the reactions in the experiement and record it in minor ditails.
What made the first cells possible?
Chemical reactions were the basis of all cells but Stanely miller came up with an experiment which made cells possible.
What term applies to the part of the experiment when the electrical shock began the mice became excited and their heart rates and respiration increased?
Alarm reactions phase a+
A psychiatrist is performing a study in which the reactions of human subjects driving during rush hour traffic are observed and recorded by cameras Is this experiment ethical?
Yes, the observation of humans in public places is legal.
Why would an experiment not demonstrate the law of conservation of mass?
The only experiments that do not maintain mass are some nuclear experiments whereby mass becomes energy. All chemical reactions must maintain the conervation of mass.
