The answer is C, hydrogen gas. This is because in single replacement reactions, the single element (here Magnesium) replaces whichever element in the compound it corresponds to. Because Mg loses electrons since it’s a metal, it will replace the element which also loses electrons, which is Hydrogen here. So when they switch places, MgCl2 and H2 are made— and H2 is the hydrogen gas.
Answer:
Browser
Browser: A software application used to locate and display Web pages. The two most popular browsers are Microsoft Internet Explorer and Netscape Navigator
C) Nucleus...... Hope it helps, Have a nice day :)
Answer: C: experimentation is the best way to obtain knowledge
Explanation: When experimenting you will learn new things and better understand things from it.
Answer:
The actual yield from this reaction is 92.39 grams CaCl2
Explanation:
Step 1: Data given
% yield = 80.34 %
Expected amount of Calcium chloride (CaCl2) = 115 grams
Step 2: The balance equation
CaCO3 + 2HCl → CaCl2 + CO2 + H2O
Step 3: Calculate actual yield
% yield = 80.34 % = 0.8034 = actual yield / theoretical yield
actual yield = 0.8034 * 115.0 grams
actual yield = 92.39 grams
The actual yield from this reaction is 92.39 grams CaCl2
