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zubka84 [21]
4 years ago
11

guyys .... please this is really urgent.....................short definition for sea breeze and land breeze.......10 points

Chemistry
1 answer:
Tema [17]4 years ago
4 0
Sea breeze: “A breeze blowing towards the land from the sea, mostly during daytime.”

Land breeze: “A breeze blowing towards the sea from the land, mostly at night.”
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What is a molecular formula?
polet [3.4K]
The symbolic representation of its compound and its composition. 

or a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound. 
ANSWER IS B
5 0
3 years ago
Calculate the mass of MNO2 needed to produce 25.0 g of Cl2
Vedmedyk [2.9K]
I will solve this question assuming the reaction equation look like this:
<span>MnO2 + 4 HCl ---> MnCl2 + Cl2 + 2 H2O. 
</span>
For every one molecule of MnO2 used, there will be one molecule of Cl2 formed. If the molecular mass of MnO2 is 87g/mol and molecular mass of Cl2 is <span> 73.0 g/mol, the mass of MnO2 needed would be:
Cl mass/Cl molecular mass * MnO2 molecular mass=
25g/ (73g/mol) * (87g/mol) * 1/1= 29.8 grams</span>
7 0
3 years ago
Read 2 more answers
Name two fluid technologies that make use of air
nika2105 [10]

Answer: Refrigerator and fire extinguisher

Explanation: Refrigerator:An evaporator fan draws air from the refrigerator and blows it over the evaporator coils. The liquid refrigerant absorbs heat from the air and the air blows back into the refrigerator at a lower temperature, cooling the refrigerator. The liquid refrigerant starts to vaporize as it heats up and moves to the compressor.

Fire extinguisher:They work by smothering the fire: when you put a layer of powder or foam on the fire, you cut the fuel off from the oxygen around it, and the fire goes out. Carbon dioxide (CO2) extinguishers contain a mixture of liquid and gaseous carbon dioxide (a nonflammable gas).

7 0
3 years ago
Which of the following BEST states the Law of Conservation of Matter?
DochEvi [55]

Answer: there is not any correct answer but the law of conservation of matter states that the sum of the mass of the reactants should be equal to that of the product

4 0
4 years ago
What are [Ba2+] and [CrO42−] in a saturated BaCrO4 solution if the Ksp of BaCrO4 is 1×10−10?
Sholpan [36]
1)  Chemical equation of the equilibrium

BaCrO4⇄ Ba (2+) + CrO4 (2-)

2) Ksp equation

Ksp = [Ba(2+)] [CrO4 (2-)]

where Ksp = 1.0 * 10^ - 10 and [Ba(2+)] = [CrO4(2-)] = x

3) Calculations

1.0 * 10^ -10 = x * x

=> x^2 = 1.10 * 10^-10

=> x = √[1.0 * 10^ -10] = 0.000010

Answer: [Ba(2+)] = [CrO4(2-)] = 0.00001 M
4 0
3 years ago
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