the answer is option D "people emphasized obtaining knowledge through scientific experiments" (on plato)
Answer:
Project scope statement?
Explanation:
it's good one just do research on it
The balanced chemical equation for the formation ammonia is
N2(g) + 3H2(g) ----> 2NH3(g) .
The balanced chemical equations explains that the same number of each element exist as reactants and products. The coefficients in a balanced equation must be the simplest whole number ratio. Mass is always conserved in chemical reactions.
For the formation of ammonia, the chemical equation is
N2(g) + H2(g) ----> NH3(g)
Balancing the chemical reaction, we can write,
N2(g) + 3H2(g) ----> 2NH3(g) .
This equation shows two nitrogen entering the reaction together and two hydrogens entering the reaction together. Since NH3 is multiplied by a coefficient of 2 there are now 2 nitrogen and 6 hydrogens. The 6 hydrogens come from the 2 multiplied by the subscript of 3. This is the balanced chemical reaction.
To learn more about Balanced chemical equation please visit:
brainly.com/question/14072552
#SPJ4
The extent of sewage treatment required mostly depends on the control of suspended solids and BOD of the sewage. Hence, option C is correct.
<h3>What is Inorganic matter?</h3>
Inorganic matter is substances of mineral origin that are not characterized by primarily carbon-based structures.
Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable for discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges.
The main goal of wastewater treatment facilities is to protect humans and the ecosystem from harmful and toxic elements found in wastewater.
Hence, option C is correct.
Learn more about the Inorganic matter here:
brainly.com/question/17163874
#SPJ1
The simplest molar ratio in which lithium reacts with nitrogen is 6 moles of lithium to 1 mol of nitrogen.
What is molar ratio?
A molar ratio examines the ratio that exist between two chemical compounds showing the amounts in moles of the compounds involved in a chemical reaction.
Molar ratio = amount of a constituent in moles ÷ total amount of all constituents in a mixture in moles
Given:
Mass of lithium (Li) = 4.2 g
Mass of nitrogen (N2) = 2.8 g
Total amount of mass = 7g
Moles = molecular weight ÷ mass of water
Moles of lithium (Li) = 4.2 ÷ 7 = 0.60 mol
Moles of nitrogen (N₂) = 2.8 ÷ 7 = 0.10 mol
Therefore, ratio Li : N₂ = 0.60 : 0.10 = 6 : 1
6 Li + N₂
The balanced equation between lithium and nitrogen, to form lithium nitride = 6 Li + N₂ → 2 Li₃N₆L i + N₂ → 2Li₃N
In summary, the simplest molar ratio in which lithium reacts with nitrogen is 6:1
Learn more about molar ratio here: brainly.com/question/14677248
#SPJ1