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Q: The energy needed to get a reaction started is the A. adhesion energy. B. activation energy. C. cohesion energy. D. chemical energy.
A: B. activation energy.
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Original conversation
User: The energy needed to get a reaction started is the A. adhesion energy. B. activation energy. C. cohesion energy. D. chemical energy.

Weegy: B. activation energy.
jd123|Points 90|

User: A well-tested explanation that explains a lot of observations is A. a hypothesis. B. an inference. C. a theory. D. a controlled experiment

User: A substance that speeds up the rate of a chemical reaction is called A. a catalyst. B. a lipid. C. a molecule. D. an element.

Weegy: A substance that speeds up the rate of a chemical reaction is called a catalyst.
debnjerry|Points 42526|

User: A student sees a bee on a flower. The student wonders how the bee finds flowers. This student is displaying the scientific attitude of A. creativity. B. curiosity. C. open-mindedness. D. skepticism.

Weegy: This student is displaying the scientific attitude of B. curiosity.
sipichapie|Points 4737|

User: Isotopes are atoms of the same element with the same number of protons and a different number of A. electrons. B. molecules. C. neutrons. D. ions.

Weegy: The answer is: D. with the same number of protons but different number of neutrons. [smile]
koaley|Points 6262|

User: What is the process that changes one set of chemicals into another set of chemicals? A. cohesion B. hydrogen bonding C. chemical reaction D. dissolving

User: A scientist working in which area of biology is MOST likely to study DNA? A. information and heredity B. cellular basis of life C. matter and energy D. interdependence in nature

Weegy: C. matter and energy
kummer5|Points 70|

User: A solution is a A. combination of isotopes. B. chemical reaction. C. mixture in which the substances are evenly spread out. D. mixture in which undissolved substances do not settle out.

Weegy: C. mixture in which the substances are evenly spread out.
jd123|Points 90|

User: What does a reviewer do during peer-review? A. Focus on mistakes in spelling. B. Change data to support results. C. Check for mistakes and bias. D. Repeat the experiments in the article.

Weegy: The answer is C) check for mistakes and bias
Butterflybaby|Points 1026|

User: The work of scientists usually begins with A. testing a hypothesis. B. careful observations. C. creating experiments. D. drawing conclusions.

Weegy: A. Testing a hyptohesis
MrG|Points 2298|

User: Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts? A. compound B. isotope C. nucleus D. enzyme

Weegy: A. compound is a substance formed by the chemical joining of two or more elements in definite amounts.
wiwit|Points 688|

User: The process by which organisms keep everything inside their bodies within certain limits is called A. homeostasis. B. evolution. C. metabolism. D. photosynthesis.

Weegy: A
Caddy83|Points 70|

User: Which of the following is NOT a function of proteins? A. store and transmit genetic information B. help to fight disease C. control the rate of reactions D. move substances into or out of cells

User: Which of the following is NOT a basic method used by ecologists to study the living world? A. experimenting B. animal training C. modeling D. observing



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Asked 1/8/2013 10:26:44 AM
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