What is bias in an experiment?
o
a. something that the scientist analyze the data
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b. something that makes the experiment more reliable
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c. something that makes the experimental results clearer
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d. something that pushes the experimental results one way or
another
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  D. Something that pushes the experimental results one way or another

Explanation:

Bias is the tendency of a measurement or outcome to be consistently different from what it would be if all preconceived notions or irrelevant influences were removed. It pushes experimental results one way or another.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.