For example, abiotic factors found in terrestrial ecosystems are sunlight, rain, wind, temperature, soil, pollution, nutrients, pH of soil and water, types of soil.

4 0

3 years ago

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100gm of a 55% (M/M) nitric acid solution is to be diluted to 20% (M/M) nitric acid.

yawa3891 [41]

Volume of H₂O added = 175 ml

<h3>Further explanation</h3>

Given

100 gm of a 55% (M/M) and 20% (M/M) nitric acid solution

Required

waters added

Solution

starting solution

mass H₂O = 45%=45 g

%mass of H₂O in new solution = 100%-20%=80%

Can be formulated for %mass H₂O :

$\tt \dfrac{45+x}{100+x}=80\%\\\\45+x=0.8(100+x)\\\\45+x=80+0.8x\\\\35=0.2x\rightarrow x=175~g$

For water mass=volume(density = 1 g/ml)

So volume added = 175 ml

7 0

3 years ago

Which elements has the largest atomic radius

Debora [2.8K]

It is Francium sonnnnnn

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2. Which electron dot structure represents a nonpolar molecule?

TEA [102]

Answer:

it's d. H:C:C:F

5 0

3 years ago