Answer:
C. A rocket traveling to the Moon
There are two major types of anatomy. Gross (macroscopic) anatomy is the study of anatomical structures that can be seen by the eye, such as the external and internal bodily organs. Microscopic anatomy is the study of tiny anatomical structures such as tissues and cells.
Answer:
The oxidation number of a monatomic (composed of one atom) ion is the same as the charge of the ion. For example, the oxidation numbers of K+, Se2−, and Au3+ are +1, -2, and +3, respectively. The oxidation number of oxygen in most compounds is −2.
Explanation:
C) Elements combine in different ways to create many more than 92 compounds.
Explanation:
The number of elements we have relates to the compound formation in that, elements combine in different ways to create many more than 92.
Elements are distinct substances that cannot be split up into simpler substances. Such substances are only made up of one kind of atom.
Compounds are substances that are made up of two or more kinds of atoms joined together in a definite grouping.
- Several millions of compounds are known because elements can combine in different ways.
- The number of elements do not increase because new elements are discovered, it is because elements have several ways by they combine.
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The dimension of a/b where x is the distance and t is the time is T
Given the expression
x = at + bt²
where
x is the distance
t is the time
Based on the homogeneity principle, the expression on the left-hand side must be equal to that on the right. Hence;
x = at
Since x is the distance and distance is measured in metres, the dimension equivalent will be the length 'L'
Since t is the time and time is measured in seconds, the dimension equivalent will be the seconds 'T'
Similarly;
x = bt²
Next is to get a/b;
Hence the dimension of a/b is T
