Answer:
zinc reacts with 2 moles of hydrochloric acid to produce two moles of zinc(ii) chloride and hydrogen gas
Explanation:
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Answer:
Pressure
Explanation:
They are both equal but do not change when the other does
The percent yield of a chemical reaction is calculated by dividing the actual yield (determined through experimentation) by the theoretical yield (calculations). The percent yield is a great way of determining the efficiency of a reaction. For this problem, the percent yield is 83.93% as given by the solution:
% yield = (47/56)*100 = 83.93%
Answer:When making observations during an experiment, Descriptions of any changes in the system following an action and Descriptions of any non-changes in the system following an action a list of possible errors must be included. The correct option is C and D.
Explanation: During a scientific experiment procedures, observation is usually carried out to take into consideration an active information from the natural source. Data can be collected by the observer:
- quantitatively ( by counting and measuring data when numerical values are attached.
- qualitatively ( when the presence or absence of a property is noted). Hence, option C and D are correct.
That’s the correct answer I believe ^
