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borishaifa [10]
3 years ago
10

What type of graph, that isn't a bar graph, would be used to show 3 different classes choices of a favourite program and how eac

h class ranked them 1st-3rd and how many chose that option out of that class.
Chemistry
1 answer:
Makovka662 [10]3 years ago
3 0

Answer:

12 classes types of bar

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Answer: To show the number of atoms present.

Explanation: As in CO² (Carbon dioxide), there is a small 2 next to the symbol "O" (oxygen) to explain that there are two oxygen atoms.

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At 20.°C, a 1.2-gram sample of Mg ribbon reacts rapidly with 10.0 milliliters of 1.0 M HCl(aq). Which change in conditions would
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Answer: (2) decreasing the concentration of HCl(aq) to 0.1 M

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2. Reactant concentration: The rate of the reaction is directly proportional to the concentration of reactants.

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(2) Decreasing the concentration of HCl(aq) to 0.1 M will decrease the reaction rate due to lesser concentration.

(3) Using 1.2 g of powdered Mg will increase the reaction rate due to large surface area.

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Which is true about a chemical reaction
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I think A. is the answer
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