Answer:
Two (2) electron pairs
Explanation:
The sharing of electron pairs by atoms forms a type of bond called COVALENT bond. Atoms that form covalent bonding (share electrons) do so in order to fill their outermost electron shells, hence, gain chemical stability.
However, when two atoms like carbon share TWO PAIRS of electrons with each other, a DOUBLE BOND is formed. An example is the double bond formed in Ethylene (2HC=CH2). A total of four valence electrons (a pair from each carbon) are shared between the two carbon atoms.
True a negative change in enthalpy means an exothermic reaction
The result of this would be H₂O.
H₂0, is nothing but water.
A chemical reaction is occurring.
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A cell is NOT part of an atom.... Protons have a positive charge, electrons have a negative charge, and neutrons have no charge, they are in atoms, but a CELL is NOT
The most appropriate word among the group of answer choices to fill in the blank is: a. Random sample surveys.
Sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.
The various types of sampling used by researchers includes the following;
A random sample survey is also referred to as a simple random sample (SRS) and it can be defined as a sampling technique that involves randomly selecting a subset of a larger population. Also, any result obtained through the use of a random sample survey can be generalized and applied to a larger population.
In conclusion, scientists and researchers prefer random sample surveys because their results can be generalized to a larger population.
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