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balu736 [363]
3 years ago
5

During an experiment a student measured the mass of a copper wire to be

Chemistry
1 answer:
Aleksandr-060686 [28]3 years ago
5 0
Quantitative data because it involves a number (quantity)
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The density of water at 400C is 0.992 g/mL What is the volume of 27.0 g of water at this temperature?
pantera1 [17]

Answer:

Volume of water at this temperature is 27.2 mL

Explanation:

We know that density=\frac{mass}{volume}

Here density of water is 0.992 g/mL

Here mass of water is 27.0 g

So volume=\frac{mass}{density}

                         = \frac{27.0g}{0.992g/mL}

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7 0
3 years ago
Please help with this question​
Anastasy [175]

Answer:

215 amu

Explanation:

In the reactants:

There is 1 iron atom, 3 chlorine atoms, 6 hydrogen atoms and 3 oxygen atoms:

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  • H: 1 × 6 = 6
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56 + 105 + 6 + 48 = 215 amu

Hope this helps!

8 0
2 years ago
How many moles at of a gas will occupy 2.5 L at STP?
Eduardwww [97]

Answer/Explanation

am not sure but I think its

Standard temperature = 273K

2.50 LTemperature

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3 years ago
Please Help Weak Acid Base Problems!!!
DiKsa [7]

Answer:

The procedure for calculating the pH of a solution of a weak base is similar to that of the weak acid in the sample problem. However, the variable x will represent the concentration of the hydroxide ion. The pH is found by taking the negative logarithm to get the pOH, followed by subtracting from 14 to get the pH.

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3 years ago
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timofeeve [1]

Answer:

the right answer is:

Explanation:

How to Balance: NaHCO3 + HC2H3O2 = NaC2H3O2 + CO2 + H2O|

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