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Chemistry

1 answer:

BigorU [14]3 years ago

5 0

The steepest slope is B.

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A cheetah has been clocked at 112 km/h over a 100-m distance. What is this speed in m/s?

Serhud [2]

M/sec = 112 km / 1 hr / 1 min / 1000 meters
hr / 60 min / 60 sec / 1 km

So the answer is = 31.1 meters/sec

8 0

3 years ago

A 46.2 mL,0.568 M calcium nitrate solution is mixed with 80.5mL of 1.396M calcium nitrate solution.Calculate tge concentration o

Ne4ueva [31]

Answer:

1.09 M

Explanation:

Let's define the equation that will be used to calculate the final concentration of the resultant calcium nitrate solution. In order to calculate it, we need to find the total number of moles of calcium nitrate and divide by the total volume of the resultant solution:

$c=\frac{n}{V}$

This equation firstly helps us find the number of moles of calcium nitrate. Multiplying molarity by volume will yield the moles. Adding the moles from the first component to the second component will provide us with the total number of moles of calcium nitrate:

$n_{Ca(NO_3)_2}=46.2 mL\cdot0.568 M+80.5 mL\cdot1.396 M=138.62 mmol$

Now, the total volume of this solution can be found by adding the volume values of each component:

$V_total=46.2 mL+80.5 mL=126.7 mL$

Finally, dividing the moles found by the total volume will yield the final molarity:

$c_{final}=\frac{138.62 mmol}{126.7 mL}= 1.09 M$

6 0

3 years ago

The picture below shows a specific nuclear reaction occurring. What best describes the unlabeled particle shown at the bottom of

neonofarm [45]

Maybe it A but im not sure

4 0

3 years ago

A bond created from the sharing of electrons between two atoms is a(an) ______ bond.

lora16 [44]

Covalent example ch4 where carbon is covalently bonded with all 4 hydrogens

5 0

3 years ago

How did knowing the number of valence electrons in one

Orlov [11]

Explanation:

Knowing the number of valence electrons in one of the alien elements helps in identifying it because the number of valence electrons can help categorize the alien element. Similar elements have the same valence electrons and knowing the category of the element can help further analyze the element.

5 0

3 years ago

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