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Feliz [49]
3 years ago
7

Write a balanced chemical equation for dissolving calcium chloride in water.

Chemistry
1 answer:
jarptica [38.1K]3 years ago
3 0

CaCl2(s) -> Ca^2+(aq)+Cl(aq)

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No matter how well how much you accomplish, or how much good you put into the world, you will always have haters. An unfortunate aspect of life is that some people hate when others do well.It’s just a way of life.some people just are jealous but dont let people brake you down.

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In the lab you find four bags; each contains 5.00 g of a different gas at STP. The gases are O2, CH4, CO2, and He. Which bag has
hichkok12 [17]

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lesser the molar mass of the gas higher the no. of moles included in a certain mass sample. ie at STP more volume is required for the gas having less molar mass.

He has the smallest molar mass.

Therefore bag of He is the biggest.

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3 years ago
Which of the following is an ion with a correct charge ?<br><br> O 4-<br> Ne8+<br> Ca2+<br> Na1-
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Ca2+ is an ion with a correct charge.

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This law relates a planet's orbital period and its average distance to the Sun.
Tanya [424]

Answer:

These are Kepler's Laws of Planetary Motion

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3 years ago
It takes about 38 m3 of boards and plywood to build an average-size, single-family home. Can an average-size, single-family home
Alexeev081 [22]

A) The answer to whether an average-size, single-family home be built with one day’s output from the saw mill is; No, it can't be built from one days output

B) The number of days will it take for the saw mill to produce enough lumber to build a neighborhood of 100 average-size homes is; 1100 days

A) From research, the average size capacity saw mill usually produces around 1500 board feet of boards per day.

Now, converting board ft to cubic meter gives;

1 board feet = 1/424 m³

Thus; 1500 board feet = 1500 * 1/424 ≈ 3.54 m³

Now, we are told that it takes 38 m³ of boards and plywood to build an average size single family home.

Since one days output = 3.54 m³

It is less than the volume required for the average sized house and so the daily output will not be sufficient.

B) Number of days to produce enough boards and plywood for the average sized family home = 38/3.54 ≈ 11 days

Thus, for 100  homes;

Number of days = 100 * 11 = 1100 days

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2 years ago
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