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malfutka [58]
2 years ago
13

Is calcium more reactive than lead?

Chemistry
2 answers:
exis [7]2 years ago
5 0

Answer:

Yes Calcium is more reactive than Lead.

Explanation:

I am Lyosha [343]2 years ago
5 0

Answer:

Yeah.

Calcium is in group II and lead is in group IV.

Since reactivity decreases from left to right of the periodic table, calcium reacts severely than lead

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List one benefit and one limitation of using scientific models.
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“Models are developed when a scientist’s creativity and insight are combined with data and observations about many similar scenarios”. Models are used for a lot of things in science. As we know everything has advantages and disadvantages, and the same applies to models. Models help us illustrate the concept and formulate hypothesis. When models are used, the scientists are able to notice patterns and develop and revise representation that become a useful model, which makes their scientific knowledge stronger and helps them understand more about the nature of science. Models are a simplified representation. One of the biggest advantages of the model is, that it allows you to have a look at things which are too small such as atoms or too big such as the solar system.

 

Although, having many benefits, models have quite a number of disadvantages. Models sometimes oversimplify the process therefore leading to a misunderstanding. As models are supposed to be a simplified representation, they will not be complex, which means they will lack detail. For Example “our particle model explains many things about matter, it is not comprehensive — for example, it cannot predict why certain materials have different electrical properties. We could add further refinements that are outside the scope of this course to enable it to do so, but it would make our model so complicated that it would no longer be useful to us”

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2 years ago
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Answer:

Explanation:

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8 0
2 years ago
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PLS HELP! If I have 17 moles of gas at a temperature of 67°C, and a pressure of 5.34 atmospheres, what is the volume of the gas?
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Answer: If I have 17 moles of gas at a temperature of 67°C, and a pressure of 5.34 atmospheres, what is the volume of the gas? write down all the givens of the problem

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Answer:  An ionic bond is a bond that forms between ions with opposite charges.

Explanation:

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For example, sodium has electronic distribution as 2, 8, 1 and chlorine has electronic distribution as 2, 8, 7.

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Hope this helps!
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