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3 years ago

Can somebody please help grades are due at the end of the week please please

Chemistry

1 answer:

Helga [31]3 years ago

3 0

Answer:

where's the document

Explanation:

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Why do isotope decay

BaLLatris [955]

Instability

Explanation:

Isotopes decays because they are unstable. Stable isotopes do not decay.

For every atomic nucleus, there is a specific neutron/proton ratio.
This ratio ensure that a nuclide is stable.
For example, fluorine F, is 10/9 stable.
Any nucleus with a neutron/proton combination different from its stability ratio either too many neutrons or too many protons will become unstable.
Such nuclide will split into one or more other nuclei with the emission of small particles of matter and considerable amount of energy.

Learn more:

Radioactive brainly.com/question/10125168

#learnwithBrainly

7 0

3 years ago

Radio waves travel at the speed of light which is 3.00 x 10^8. How many minutes does it take for a radio message to reach saturn

ryzh [129]

Answer:

43.89 min

Explanation:

Given that:-

The speed of light = $3.00\times 10^8\ m/s$

The distance = $7.9\times 10^8\ km$

The conversion of distance in km to distance into m is shown below as:-

1 km = 1000 m

So,

Distance = $7.9\times 10^8\times 1000\ m=7.9\times 10^{11}\ m$

The relation between speed distance and time is shown below as:-

$Speed=\frac{Distance}{Time}$

Thus,

$3.00\times 10^8=\frac{7.9\times 10^{11}}{Time}$

$300000000\times time=10^{11}\times \:7.9\ s$

Time = 2633.33 seconds

Also, 1 s = 1/60 min

So,

Time= $\frac{2633.33}{60}\ min=43.89\ min$

3 0

3 years ago

Why do we need to use moles when we try to determine amounts of reactants and products in a reaction?.

ICE Princess25 [194]

$\huge\fbox{Answer ☘}$

<em>Chemists use the mole unit to represent 6.022 × 10 23 things, whether the things are atoms of elements or molecules of compounds. This number, called Avogadro's number, is important because this number of atoms or molecules has the same mass in grams as one atom or molecule has in atomic mass units. </em>

hope helpful~

8 0

3 years ago

Mixtures can be separated by filtration and distillation. Both methods take advantage of ...

bagirrra123 [75]

<span>differences in the physical properties of the mixture's components</span>

5 0

3 years ago

The boiling point of water is a _____ property and is equal to _____.

Reptile [31]

Answer:

The boiling point of water is a physical property and is equal to 0 C.

The Correct Answer is : C

3 0

3 years ago

Read 2 more answers