The statement that correctly relates science and its influence on society is : Science can be used to address societal problems, but it is not always successful
for example, science can be used to address food shortage. Through various biotechnology, society doesn't have to be worry about food shortage in the future
hope this helps<span />
<u>Answer:</u> The volume of nitrogen gas at STP is 44.8 L.
<u>Explanation:</u>
The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation for it follows:
...(1)
We are given:
Given mass of = 130.0 g
Molar mass of = 65.01 g/mol
Using equation 1:
For the given chemical equation:
By the stoichiometry of the reaction:
2 moles of produces 3 moles of nitrogen gas
At STP:
1 mole of a gas occupies 22.4 L of volume
So, 2 moles of nitrogen gas will occupy of volume
Hence, the volume of nitrogen gas at STP is 44.8 L.
Answer:
5. Element J has the highest atomic number
6. Elements G and L have the same number of electrons in their outermost shell.
Explanation:
The periodic table of elements is a table which shows the arrangement of the elements in the order of increasing atomic number. Starting from the topmost left-hand side of the table where the element with the least atomic number is placed, and going across the table from left to right and down to the lowest point to the right of the table, where the element with the highest atomic number is located, the atomic number of elements progressively increases.
Looking at the table, it can be seen that the element J is found at the lowest point to the right of the table. Therefore, element J has the highest atomic atomic number.
6. In the periodic table, elements are arranged into groups and periods. The groups are the columns while the periods are the rows. Elements in the same column or group have the same number of electrons in their outermost shell. Therefore, element G and L have the same number of electrons in their outermost shell.
Answer : The specific heat of metal in this case will be 0.411 J/<span>g°C
Explanation : Specific heat can be calculated by using the formula
Q = Cm</span>ΔT
where Q is heat added which is 100 here
C is specific heat which needs to be found
m is mass of the metal
and ΔT is the temperature change
on substituting we get,
100 = x . 60 . 4.05
so, x = 0.411