Answer:
1. A
2. D
3. E
4. B
5. C
Explanation:
1. Plants are known as producers since they produce energy for themselves through photosynthesis.
2. The rabbit is a primary consumer since it’s herbivore and only feeds on producers for energy.
3. The tiger is a carnivore, and preys on other consumers for energy.
4. A human is an omnivore since it can gain energy from both producers and consumers.
5. Bacteria are know as decomposers since such category of organisms break down other organisms to gain energy.
I think it’s D the melting point everything else doesn’t really make sense
If 1000 ml (1 L) of CH₃COOH contain 1.25 mol
let 250 ml of CH₃COOH contain x
⇒ x =
= 0.3125 mol
∴ moles of CH₃COOH in 250ml is 0.3125 mol
Now, Mass = mole × molar mass
= 0.3125 mol × [(12 × 2)+(16 × 2)+(1 × 4)] g/mol
= 18.75 g
∴ Mass of CH₃COOH present in a 250 mL cup of 1.25 mol/L solution of vinegar is <span>18.75 g</span>