Answer:
H2 is Molecular hydrogen. It is a molecule of hydrogen that consists of two hydrogen atoms bonded together by one single bond (also known as a sigma bond). A subscript also denotes how many of a particular atom is in a molecule, thus H2 has two hydrogens. 2H, on the other hand, denotes two moles of elemental hydrogen.
Vacancy. the consonant being v, the beginning aca, and end ncy. So, V-aca-ncy.
The mode stands for the number in a series found the most.
In this series you have:
three 4s
two 17s
one 27
one 29
one 20
one 24
and one 34
The mode, or number most found, is 4.
Answer:
2. The two main reasons immigrants came to the United States are:
(i) Political Freedom
(ii) Economic opportunities
3. The five areas where Kennedy says that immigrants have made important contributions include:
(i) agriculture
(ii) religion
(iii) education
(iv) arts
(v) entertainment
Explanation:
J.F Kennedy, a former President of the United States of America was in full support of the immigration reform. During such reforms, he was in opposition of the distinction that was created between native-born and naturalized citizens. He stated that "There is no place for second-class citizenship in America".
In his essay, "A Nation Of Immigrants", he clearly highlighted the reasons immigrants came into United States. Also, he further explained how immigrants have contributed and affected the United States.
His book contributed to the debate on immigration reform.
