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Ilya [14]
2 years ago
14

SOMEONE PLZZ help me on this chemistry test I need to pass it to be able to get my grade up :(((

Chemistry
1 answer:
iVinArrow [24]2 years ago
6 0

Answer:

s-2 p-6 d-10 f-14

Explanation:

s orbital max can fit 2 electrons

p orbital max can fit 6 electrons

d orbital max can fit 10 electrons

f orbital max can fit 14 electrons

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Calculate the Ph of:
andrey2020 [161]

Answer:

pH= 3.82

Explanation:

Sodium ethanoate or sodium acetate (CH3COONa) ionises completely.

Ethanoic acid or acetic acid (CH3COOH), ionises partially because it is a weak acid.

4 0
3 years ago
If I use the dropper to add 10 mL of drink mix to 50 mL of water, what is the
Yuliya22 [10]

Answer:

16.7%

Explanation:

From the question given above, the following data were obtained:

Volume of drink mix = 10 mL

Volume of water = 50 mL

Percentage of drink mix =?

Next, we shall determine the total volume of the solution. This can be obtained as follow:

Volume of drink mix = 10 mL

Volume of water = 50 mL

Total volume of solution =?

Total volume of solution = (Volume of drink mix) + (Volume of water)

Total volume of solution = 10 + 50

Total volume of solution = 60 mL

Finally, we shall determine the percentage of the drink mix in the solution. This can be obtained as follow:

Volume of drink mix = 10 mL

Total volume of solution = 60 mL

Percentage of drink mix =?

Percentage of drink mix = Vol. of drink mix / total volume × 100

Percentage of drink mix = 10/60 × 100

Percentage of drink mix = 16.7%

4 0
3 years ago
What is an extinction event
aliya0001 [1]
An extinction event is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms. It occurs when the rate of extinction increases with respect to the rate of speciation. -Wikipedia
4 0
3 years ago
A complex absorbs photons with an energy of 4.10×10^−19 J. What is the wavelength of these photons? If this is the only place in
MaRussiya [10]

Answer:

483 nm corresponds to blue light hence the complex will appear orange.

Explanation:

Using the formula;

E= hc/λ

Where;

E = energy of the photon

h = Plank's constant (6.6*10^-34Js)

c = Speed of light (3*10^8 ms-1)

λ = wavelength

λ = hc/E

λ = 6.6*10^-34 * 3*10^8/4.10×10^−19

λ = 4.83 * 10^-7 or 483 nm

483 nm corresponds to blue light

Using the colour wheel approach, if a complex absorbs blue light, then it will appear orange.

6 0
2 years ago
Environmental pollution with chemicals <br> how does it affect countries and economies
netineya [11]

Answer:

The most recent Global Burden of

Disease (GBD) study estimates that air pollution – indoor and outdoor combined – was the cause of 5.5 million premature deaths

globally in 2013. Air pollution also has further consequences on human health, leading in particular to an increasing number of

respiratory and cardiovascular diseases. Moreover, it affects crop yields and the environment, with impacts on biodiversity and

ecosystems, amongst others. These impacts have significant economic consequences, which will affect economic growth as well as welfare

Explanation:

5 0
2 years ago
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