A precipitation reaction is one in which dissolved substance react to form a solid product.
What are the examples of precipitation reaction ?
AgNo3+ CaCl2→AgCl + Ca(No3
Fehling's test .
Precipitation reaction are useful to test whether substance present in a solution .
Precipitation is used to remove metal ions from aqueous solution .
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The answer should be C. I dont know know if you have misspellings or not
Answer:
are produces are in a month.
Explanation:
Quantity of eggs produced by the chicken in a month = 284 dozens
1 dozen = 12 eggs
Number of eggs in a month:
are produces are in a month.
Answer: The correct answer is (B).
Explanation:
Hypothesis is a predictive statement which relates two or more phenomena.
- It is tested to observe or to see whether it is true or false with the help of scientific means.
- it relates dependent and independent factors with each other
Theory is a tested and proved framework which explains single or multiple observed phenomena
- It is thoroughly proved and tested through experiments and observations.
- it is strongly supported by scientific evidences and observations.
Hence, a hypothesis is a prediction for a specific situation, while a theory is used to make predictions for many similar situations.
Answer:
1.22 g/cm³
Explanation:
Density = mass ÷ volume
Mass = 10.04 grams
Volume = 8.21 cubic centimeters
Density = mass ÷ volume
= 10.04 ÷ 8.21
= 1.2228989037758 g/cm³
Approximately
1.22 g/cm³ to 2 significant figure.
The final answer should be approximated to 2 significant figure because the mass and volume of the objective given is in 2 significant figure