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Natalka [10]
2 years ago
12

HELP!!! WILL MARK BRAINLIEST!!! picture attached below

Chemistry
1 answer:
Hoochie [10]2 years ago
5 0

Answer:

0.2 cm

Explanation:

looking at the ruler, you can see that the diameter is 0.4 cm. to get the radius, just divide by two, which gets 0.2 cm as the radius

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One mole of carbon will have the same number of particles as one mole of hydrogen.
AVprozaik [17]
And the answer is False,it does not have the same number with particles as the one mole of hydrogen.
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3 years ago
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At which point on the roller coaster will the car have the greatest amount of Kinetic energy?
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Please help!! 20 points!! Posted this previously and forgot to change it to 20 points but it is now
spayn [35]

Answer:

0.571 mol

Explanation:

Given data:

Number of moles of NaHCO₃ = 0.571 mol

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Solution:

Chemical equation:

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Now we will compare the moles of CO₂ with NaHCO₃ from balance chemical equation.

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                                    1                :               1

                                 0.571            :            0.571

So number of moles of CO₂  produced are 0.571.

3 0
2 years ago
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the frequency of a given region of the electromagnetic spectrum is more than 3 x 10^19HZ. note that the speed of light is 2.998
Cerrena [4.2K]
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The Frequency given falls in between X-rays and Gamma rays. The wavelength however; is in the Gama ray region.




5 0
2 years ago
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What is the mass of a rectangular cube with dimensions of 3 cm x 2 cm x to 10 cm and a density of 10 g/cm^3
marta [7]

d=m/V so m=Vd

m=60cm^3 * 10g/cm^3=600g

3 0
2 years ago
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