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wariber [46]
3 years ago
5

Data collected that describes the quality of the data set is called _______ data.

Chemistry
1 answer:
Nitella [24]3 years ago
3 0

Answer:

1. Qualitative.

2. Comparative investigation.

3. Mode.

Explanation:

1. Data collected that describes the quality of the data set is called qualitative data. This data type are non-numerical in nature i.e they are categorical. Some examples are excellent, poor, gender, religion etc.

2. An investigation where you compare objects to find a relationship is a comparative investigation. For example, a researcher trying to find out which bag is heavier by determining their weight.

3. If the number 5 occurs with the most frequency in the data set, it is called the mode.

For example, given A = (1, 5, 2, 5, 1, 5 4, 5). The mode is 5 because it appeared the most i.e four (4) times.

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Consider the reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and hydrogen gas. If 3.29 mol of m
gregori [183]

Answer:

1.645 moles of excess reactant that is of magnesium metal are left over.

Explanation:

Moles of magnesium metal = 3.29 mol

Moles of HCl = 3.29 mol

Mg(s)+2HCl(aq)\rightarrow MgCl_2(aq)+H_2(g)

According to recation, 2 moles of HCl reacts with 1 mol of magnesium metal, then 3.29 moles of HCl will react with :

\frac{1}{2}\times 3.29 mol=1.645 mol of magnesium metal

Moles of HCl left = 3.29mol - 3.29 mol = 0

Moles of magnesium metal left = 3.29 mol - 1.645 mol = 1.645 mol

1.645 moles of excess reactant that is of magnesium metal are left over.

7 0
2 years ago
What effect would you expect this to have on CO2 levels in the atmosphere?
VLD [36.1K]

expect what to have?!?!?!?

5 0
2 years ago
What is the difference b/w thermodynamic cycle and mechanical cycle
const2013 [10]
In a mechanical cycle, mechanical energy (mostly the the rotation) is used to get the desired result. The form of energy remains the same. 
<span>In a thermodynamic cycle heat is converted to mechanical energy. That is to say there is conversion of energy.</span>
4 0
3 years ago
Which type of decomposer only breaks down living and dead plant material ​
Sphinxa [80]

well, worms break down dead plants and bacteria can break down animal flesh and plants. Hope this helps :)

4 0
3 years ago
When the temperature of a substance increases, do the intermolecular forces change? why or why not?
xeze [42]

Answer:

If the temperature rises much more, the individual particles will have enough energy to overpower the intermolecular forces, causing the particles to disperse and the material to become a gas (assuming that their chemical bonds are not so weak that the compound decomposes from the high temperature).

Explanation:

Hope this helps!

Please mark me as Brainlinieast.

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