Insecticides are <span> Chemical poisons.
</span><span>A. Chemical poison</span>
It is very important that the 2.5 M HCl can be added dropwise, slowly and carefully in order to make a good mixture.
<h3>Why HCl can be added dropwise, slowly and carefully?</h3>
Hydrochloric acid can be added in the solution dropwise and slowly in order to mix with the solution very well. This acid should also be mixed with the solution carefully.
This is because hydrochloric acid is a strong acid which can damaged the skin if it is not carefully pour into the solution so we can conclude that HCl can be added dropwise, slowly and carefully is very important in order to make a good mixture.
Learn more about mixture here: brainly.com/question/24647756
Answer:
Synthetic polymers are human-made polymers, and they are commonly found in a variety of consumer products. Various main chains and side chains are used to make different synthetic organic polymers.
Answer:without predators, to keep prey from producing too many and over eating, the ecosystem suffers as there isn’t enough for the prey themselves to eat.
Explanation:
Answer:
44.8 L of N₂.
Explanation:
We'll begin by writing the balanced equation for the. This is illustrated below:
N₂ + 3H₂ —> 2NH₃
From the balanced equation above,
1 mole of N₂ reacted to produce 2 moles of NH₃.
Therefore, Xmol of N₂ will react to produce 4 moles of NH₃ i.e
Xmol of N₂ = (1 × 4)/2
Xmol of N₂ = 2 moles
Thus, 2 moles of N₂ reacted to produce 4 moles of NH₃.
Finally, we shall determine the volume of N₂ required for the reaction. This can be obtained as follow:
1 mole of N₂ occupies 22.4 L at STP.
Therefore, 2 moles of N₂ will occupy = (2 × 22.4) = 44.8 L
Thus, 44.8 L of N₂ is needed to produce 4 moles of NH₃.