An example of a scalar is <u>speed</u> and an example of a vector is <u>velocit</u>y.
<em>Distance</em> is also a <em>scala</em>r.
<em>Acceleration</em> and <em>displacement</em> are <em>vectors</em> because they have both magnitude and direction.
The other options do not fit because:
velocity/acceleration = vector/vector
velocity/displacement = vector/vector
distance/speed = scalar/scalar
The structure of the alkyl bromides used in a malonic ester synthesis of ethyl 2-methyl-4-pentenoate are as drawn in the attached image.
<h3>Ethyl 2-methyl-4-pentenoate by Malonic ester synthesis.</h3>
The malonic ester synthesis is a chemical reaction characterized by the alkylation of diethyl malonate or a similar ester of malonic acid at the carbon alpha (directly adjacent) to both carbonyl groups, and subsequently converted to a substituted acetic acid.
Hence, it follows from the structure of Ethyl 2-methyl-4-pentenoate that the alkyl bromides used are Ethyl bromide and methyl bromide.
Read more on Malonic ester synthesis;
brainly.com/question/17237043
Ca.
Hydrogen and Carbon combined
Zn = zinc which is a metal, not a carbon atom
Cl=chlorine, just not a carbon atom
Sn isn’t a carbon atom.
I Am positive that it is Ca because Ca means carbon
Answer: When the air particles inside the balloon become colder, they slow down and do not hit the inside of the balloon as often, so the balloon's volume decreases.