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ExtremeBDS [4]
4 years ago
5

How does solar activity affect Earth?

Chemistry
1 answer:
Umnica [9.8K]4 years ago
8 0

When the sun becomes active, the occurrences of phenomena such as solar flares, coronal mass ejection become frequent. The amount of high-energy particles and extreme shortwave radiation released, such as X-rays and UV, will also increase. These phenomena affect the ionosphere of the Earth's atmosphere the most.

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How many liters of water are needed to dissolve 75.0 grams of NaOH to prepare a 1.00-M solution?​
Pepsi [2]

Answer:

About 500

Explanation:

Bc i used my calc

4 0
3 years ago
What is the volume of 18.9 g of a liquid that has a density of 0.956 g/ml
Alex_Xolod [135]
The volume is 19.76987448 by taking the known variables mass=18.9g and density=0.956g/ml
To get volume you divide the mass by the density which gives you about
19.77 ml in volume
6 0
3 years ago
What would be the mass of 9.03*10^21 molecules of hydrobromic acid
Fynjy0 [20]

Answer:

2.11 g hydrobromic acid (correct to 3SF)

Explanation:

Molecular formula of hydrobromic acid = C2H5BrO2

mass of C2H5BrO2 = 140.96g

Beginning with what we're given, 9.03*10^21 we then make a conversion by using Avegadro's number which is 6.02*10^23 per mole (Oct. 23 at 6:02 am is national mole day :) Then, we need to convert out of moles, 140.96g hydrombromic acid per mole.

It looks like this:

9.03*10^21 molecules • (1 mol C2H5BrO2 / 6.02*10^23 molecules) • (140g C2H5BrO2 / 1 mol) = 2.1144 g C2H5BrO2

3 0
3 years ago
Is sodium oxide an acidic oxide or a basic oxide
valkas [14]

Answer:It a Basic oxide

Plz trust Me

Explanation:

5 0
3 years ago
Read 2 more answers
100 points! Please help, will name brainliest. Thank you :)
Ludmilka [50]

Answer and Explanation:

We need to remember the formulas:

- pOH = -log[OH-]

- pH = -log[H+]

- pH + pOH = 14

When given the concentration of OH-, denoted as [OH-], we can plug that value into the equation pOH = -log[OH-] to find the pOH. Once we have found the pOH, we can then subtract that value from 14 to determine the value of pH.

4 0
3 years ago
Read 2 more answers
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