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Sedbober [7]
3 years ago
7

PLZ HELP, BRAINLIEST TO WHOEVER GIVES WORK TOO!!​

Chemistry
1 answer:
Flura [38]3 years ago
5 0

Answer:

1.15 hours

Explanation:

If they are going 100 kilometers an hour, and they need to go 115 k, then do 115/100 which is 1.15 which is the time

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Which is the product of that reaction
ki77a [65]

Answer:

B

Explanation:

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Which graph shows the pressure-temperature relationship for a gas at a fixed volume?
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The answer is

C. Graph A

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How many grams of FeCl 3 are in 250. mL of a 0.100 M solution?
Naddika [18.5K]

Answer:

The correct answer is option B

Explanation:

$Molarity=\frac{Weight}{Molecular \,weight} \frac{1000}{V(in \, ml)}

Given values,

Molarity of $FeCl_3=0.100M$

Volume of solution, $V=250ml$

Molecular weight of $FeCl_3=162.2$

Substituting this values in Molarity formula, we get

$0.1=\frac{weight}{162.2} \times\frac{1000}{250} $\\$\Rightarrow 16.22=weight\times4$\\$\Rightarrow weight=\frac{16.22}{4} $\\$\therefore weight=4.06g$

5 0
4 years ago
Which of the following is a quantitative observation of the frog?
Nataliya [291]
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6 0
3 years ago
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Calculate the percent errorin a length measurementof 4.45cm if the correct value is 4.06
FinnZ [79.3K]

Answer:

9.6 %

Explanation:

<u>Step 1: How to define  percent error ? </u>

⇒ % error is the difference between a measured value and the known or accepted value

⇒Percent error is calculated using the following formula:

⇒%error  =  | Experimental value-theoretical value/theoretical value |  x100%

⇔ this can be written as well as : error = (| Experimental value/ theoretical value | - | Theoretical value / Theoretical value | ) x100%

<u>Step 2: Calculate % error</u>

In this case, this means :

%error = ( |(4.45 cm - 4.06cm ) / 4.06cm | ) x100%

%error = 0.096 x100%

%error =9.6 %

3 0
3 years ago
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