The 2 represets 2 nitrogen gas atoms
Agree with the statement like most of human achievements chemistry has been used as well as misused.
Science help in development of culture and promoting human civilization but human misused this achievements in their self interest. Like innovation of nuclear power system helps in increasing nation's development but at the same time man is misusing this atomic energy for making powerful bomb.
Explanation:
Human achieved their success in various field with the help of science and technology. Every aspects of things has two side. Its depend upon us which one we will take off. Specifically chemistry the hard core science contributes a lot in upgrading civilization like innovation of nuclear power system which can reduce the use of other conventional energy resources which is much needed for our future generation.
But our so called society and civilization use this technological and scientific achievements in a negative way and produce nuclear bomb to fulfill their self interest.
Answer
to do homework or not
Explanation:
you can figure it out in one second
Answer:
25.0g is the mass of sulfur
Explanation:
The sulfur and the oxygen are 50:50. That means there is 1 mole of S per mole of O.
To solve this question we need to convert the mass of O to moles, as moles of O = Moles of S, we can find the moles of S and its mass:
<em>Moles O = Moles S:</em>
12.5g O * (1mol / 16g) = 0.781 moles
<em>Mass S:</em>
0.781 moles * (32g / mol) =
<h3>25.0g is the mass of sulfur</h3>
Answer:
Answer is: Keq = [CO₂].
Explanation:
Balanced chemical reaction: CaCO3(s) ⇄ CaO(s) + CO₂(g).
The equilibrium constant (Keq) is a ratio of the concentration of the products to the concentration of the reactants.
Pure liquids (shown in chemical reactions by appending (l) to the chemical formula) and solids (shown in chemical equations by appending (s) to the chemical formula) not go in to he equilibrium constant expression, only gas state (shown in chemical reactions by appending (g) to the chemical formula) reactants and products go in to the equilibrium constant expression