Answer:Salt
Explanation:
In chemistry a salt is produced from a neutralization reaction, when an acid react with a base.
HCl(aq) + NaOH (aq) ----> NaCl (aq) + H2O(l)
A salt consists of the positive ion (cation) of an acid and the negative ion (anion) of a base.
H+(aq) + Cl-(aq) + Na+(aq) + OH-(aq) -------> Na+Cl-(aq) + H2O(l)
When the water is evaporated, the negatively charged chlorine ions combine with the positively charged sodium ions to form a solid salt.
3.264 g of ZnCl2 is 0.02394 moles. From the formula for ZnCl2, this is also the moles of Zn you should have gotten.
Atomic mass of Zn = 1.565 g is the theoretical yield you should have gotten
percent recovery = 1.468 g / 1.565 g * 100
Answer:
The answer is 2.3
Explanation:
The model for the population of bacteria is growing by
P= 100 x e^.60t
where P is the number of colonies and t is measured in hours.
Now, we need to find after how many hours will 400 colonies be present
So, Putting value of P = 400 in the above model and obtain the value of t
-> 400 = 100 x e ^.60t
-> 4 = e^.60 t
Take the natural log of ln on both sides
--> ln 4 = ln e ^.60 t
--> ln 4 = .60t
t= ln 4 / .60
T= 2.3
Answer:
Permanent hardness (mineral content) is generally difficult to remove by boiling. If this occurs, it is usually caused by the presence of calcium sulfate/calcium chloride and/or magnesium sulfate/magnesium chloride in the water, which do not precipitate out as the temperature increases
Explanation:
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Answer:
1.Ask the research question
2. Do the background research
3. Create a Hypothesis
4. Test with an experiment
5. Analyze Data and Draw Conclusions
6. Results Align with Hypothesis or Results Align Partially or not at all with Hypothesis
7. Share results
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Explanation:
