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3 years ago

Why in summer water vapour rises upwards????????????? please I want the answer very fast

1 answer:

4 0

Humidity is the end result of a huge amount of water vapor in the air. Now water vapor is caused by heat. Since the sun is extremely strong during the summer, then a lot of heat would be produced due to the sun's rays. This in turn would produce water vapor that can be found in the air. A lot of water vapor in the air causes humidity. Now we all know that heat rises so water vapor, being a result of heat, would also rise as well.

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What is the molarity if 6664 grams of boron iodide is dissolved in 5.25 liters of water?

Virty [35]

Answer:

3.24 mol/L

Explanation:

Given that:

mass of Boron triiodide = 6664 grams

molar mass of BI_3 = 391.52 g/mol

Recall that:

number of moles = mass/molar mass

∴

number of moles = 6664 g /391.52 g/mol

number of moles = 17.02 mol

Also;

Molarity = moles for solute/liter for solution

= 17.02 mol/5.25 L

= 3.24 mol/L

4 0

3 years ago

The phrase “the danger is in the dose” is sometimes used when describing poisonous (toxic) chemicals. What does this mean?

Lostsunrise [7]

It means it depends on how much of the chemical you have. For ex. if 1 drop of snake venom might not kill you, but 20 drop could definitely kill you. Hope this helps!

6 0

3 years ago

Which of the following statements is true?

azamat

P waves can travel through liquids and solids.

4 0

3 years ago

Write a balanced equation for the double-replacement neutralization reaction described, using the smallest possible integer coef

g100num [7]

<u>Answer:</u> The balanced chemical equation is given below.

<u>Explanation:</u>

Double-displacement reaction is defined as the reaction in which exchange of ions takes place. The general equation representing this reaction follows:

$AB+CD\rightarrow CB+AD$

The balanced chemical equation for the reaction of barium hydroxide and perchloric acid follows:

$Ba(OH)_2(aq.)+2HClO_4(aq.)\rightarrow Ba(ClO_4)_2(aq.)+2H_2O(l)$

By Stoichiometry of the reaction:

1 mole of barium hydroxide reacts with 2 moles of perchloric acid to produce 1 mole of barium chlorate and 2 moles of water molecule.

Hence, the balanced chemical equation is given above.

8 0

3 years ago

Calculate the molarity of a solution prepared by dissolving 11.5 g naoh in enough water to make 1.5 l of solution. 1. 7.6 m 2. 2

zhuklara [117]

Molarity of a solution = (number mol of solute)/ (volume of the solution)

1) Molar mass NaOH= M(Na)+M(O)+M(h)= 23.0+16.0+1.0=40.0 g/mol
2) 11.5 g NaOH *(1mol Naoh/40.0 g NaOH)=0.288 mol NaOH
3)Molarity (NaOH solution) =(0.288 mol)/(1.5 L)=0.192 M≈0.19 M

6 0

4 years ago

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