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bazaltina [42]
2 years ago
9

The initial movement of groundwater into the atmosphere to form clouds is due to what?

Chemistry
2 answers:
earnstyle [38]2 years ago
6 0
This is the water cycle and the process is Evaporation.
Alona [7]2 years ago
6 0

Answer:

b

Explanation:

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Someone please ASAP<br> the options are <br> 1. BF.<br> 2.B4<br> 3.B2F2<br> 3.BF3
arlik [135]

Answer:

B4

Explanation:

good day

6 0
2 years ago
Explain how you would make 450 mL of a .250M NaOH solution?
Neporo4naja [7]

Answer:

Weigh 4.5 grams of sodium hydroxide and add it to the dry volumetric flask of 450 mL followed by small amount of water to dissolve all the NaOH .After this add the water upto tye mark of 450 mL.

Explanation:

Molarity of the solution is the moles of compound in 1 Liter solutions.

Molarity=\frac{\text{Mass of compound}}{\text{Molar mas of compound}\times Volume (L)}

Mass of NaOH = x

Molar mass of NaOH = 40 g/mol

Volume of the NaOH solution =  450 mL =- 0.450 L ( 1 ml = 0.450 L)

Molarity of the solution of NaOH = 0.250 M

Molarity=\frac{1.248 g}{26 g/mol\times 0.9102254 L}=0.528 mol/L

0.250 M=\frac{x}{40 g/mol\times 0.450 L}

Solving for x:

x = 4.5 g

Weigh 4.5 grams of sodium hydroxide and add it to the dry volumetric flask of 450 mL followed by small amount of water to dissolve all the NaOH .After this add the water upto tye mark of 450 mL.

4 0
3 years ago
What is the air speed of a unladen swallow?
Firdavs [7]

Answer: An african or a european swallow?

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3 years ago
Over coffee and croissants at breakfast one day, your friend Reuben (an expert chemist) says this: "Soluble metal oxides form hy
Kitty [74]

Answer:

Explanation:

The product formed will be alkaline solution of potassium hydroxide .

K₂O + H₂O = 2 KOH .

Therefore  K₂O is called basic oxide .

5 0
3 years ago
How many molecules of hydrogen gas (Hz) are needed to produce 9.0 x 1023 molecules of H2O?
VashaNatasha [74]

Answer:

Explanation: Ammonia (NH3) is produced by the reaction of nitrogen gas and hydrogen gas. ... How many grams of fluorine gas are needed to produce 100.00g of AlF3? ... How many molecules of CO2 gas can be produced of 156.24g of benzene, ... (a) If 16.74.g of Fe and 9.0 9 of H2O are allowed to react, how many grams of products.

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2 years ago
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