Answer:
Explanation:
A. Ethanoic acid-acetic acid being weak acid dissocated weekly and turns solution to weakly acidic, ph will be between 4-7,
B. Hydrochloric acid - the solution would be acidic- with lots of H+ ions, Ph will be between 1-4,
C. Sodium chloride - solution prodcued netural Na+ and Cl- hence wont affect ph of solution will be equalt to 7.
D. Sodium hydrogen carbonate-NaHCO3 is weak base and the PH will be above 7,
hope these helps you to find your answer
(3) It involves interactions between biotic and abiotic
factors.
Explanation:
An ecosystem involves the interaction between biotic and abiotic factors.
The biotic factors are the living components of the ecosystem. The abiotic factors are the non-living components.
An ecosystem is made up the interaction between living organisms and their environments.
- Ecosystem are combination of the community of lives and the environment.
- The environment contains the non-living abiotic components.
- The organisms are the living components.
- All of this merges together to form of the ecosystem.
learn more:
Ecosystem brainly.com/question/2456852
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Answer:
The last word means acid.
Explanation:
Answer:
Actual yield = 86.5g
Explanation:
Percent yield = 82.38%
Theoretical yield = 105g
Actual yield = x
Equation of reaction,
CaCO₃ + HCl → CaCl₂ + CO₂ + H₂O
Percentage yield = (actual yield / theoretical yield) * 100
82.38% = actual yield / theoretical yield
82.38 / 100 = x / 105
Cross multiply and make x the subject of formula
X = (105 * 82.38) / 100
X = 86.499g
X = 86.5g
Actual yield of CaCl₂ is 86.5g
