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2 years ago

Large air masses moving across and area are called _____?

Chemistry

2 answers:

faltersainse [42]2 years ago

6 0

Fronts. This includes cold fronts and warm fronts. Hoped this helped!

docker41 [41]2 years ago

6 0

Answer: Air masses

Explanation: An air mass is a large body of air that has about the same conditions throughout. For example, an air mass might have cold dry air. Another air mass might have warm moist air. The characteristics of an air mass depend on where the air mass formed. The air must stay over that location long enough to pick up those characteristics.

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How many grams of hydrochloric acid and required to react completely with 61.8 grams of calcium hydroxide when they produce calc

Keith_Richards [23]

2HCl+Ca (OH)2------>cacl2+2H2O
...now every 2 moles of hcl reacts with 1 mole ca (oh)2.....
2moles of hcl = 2×(36.5)=73 gm..
1 mole of ca (oh)2=40+(17×2)=74 gm..
so ... 61.8 gm of hcl need ...(61.8×73)/74= 60.964864864

7 0

3 years ago

Water (2230 g ) is heated until it just begins to boil. If the water absorbs 5.73×105 J of heat in the process, what was the ini

shutvik [7]

Answer: $38.5^0C$

Explanation:

To calculate the initial temperature of the water:

$q=m\times c\times (T_{final}-T_{initial})$

where,

q = heat absorbed = $5.73\times 10^5J$

$c$ = specific heat of water = $4.18J/g^oC$

m = mass of water = 2230 g

$T_{final}$ = final temperature of water = $100^0C$

$T_{initial}$ = initial temperature of metal = ?

Now put all the given values in the above formula, we get:

$5.73\times 10^5J=2230g\times 4.18J/g^oC\times (100-T_i)^0C$

$(100-T_i)=61.5$

$T_i=100-61.5)=38.5^0C$

Thus, the initial temperature of the water is $38.5^0C$

5 0

3 years ago

Please help with this chemistry problem! thank you

Y_Kistochka [10]

I think i wrote it already
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4 0

2 years ago

Carbon, hydrogen, and oxygen are always found in what type of molecule?

Snowcat [4.5K]

Carbohydrates, proteins, lipids, and Nucleic Acids.

3 0

3 years ago

consider an atom having four distinct neergy levels. if an electron is able to make transitions between, any two levels, how man

ludmilkaskok [199]

Answer:

6 different frequencies

Explanation:

From energy level 1 to 2 is one frequency, from energy level 1 to 3 is one frequency and From energy level 1 to 4 is one frequency. So, we have a total of 3 frequencies for transition from energy level 1.

From energy level 2 to 3 is one frequency and from energy level 2 to 4 is one frequency. So, we have a total of 2 frequencies for transition from energy level 2.

From energy level 3 to 4 is one frequency.

So we have a total of 3 + 2 + 1 different frequencies = 6 different frequencies.

Note that the reverse process for each step produces the same frequency as the step in consideration.

8 0

2 years ago