B. what is a real-world example or use of surface area?

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

5 0

Answer:

Surface area : It is the total area of a surface

The surface area is used in many places.

1) If we want to paint a wall, we have to find the total surface area of the wall.

2). If we want to place tiles in our floor we want to find surface area.

3)If we want to roof our houses we have to find the surface area.

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Using the solubility curve, choose all of the statements that are correct.

irinina [24]

Answer:

See explanation below

Step-by-step explanation:

According to the solubility curve attached, let's analyze each sentence to see which one is correct:

"Solubility of NaCl is least affected by temperature"

True. as you can see in the curve, solubility of NaCl remains almost constant at any value of temperature, so in this case, it does not matter the temperature, the NaCl solubility will be the same.

"completely dissolve 60 g of KBr in 100 g of water at 20 °C"

True. As you can see in the graph, solubility of KBr begins at 60 g, so in 20 °C we have something dissolved there. Actually you have like 70 g dissolved there, so, this is true.

"The solubility of KNO3 is the least affected by changes in temperature"

False. The curve for KNO3 is exponencial, so, changes in temperature do actually affect the solubility.

"100 g of KBr will dissolve completely in 100 g of water at 75 °C"

False. According to the curve, 100 g dissolve when we reach more than 100 °C. At 75 °C only about 85 g of KBr is dissolved.

"if you mix 120 g of NaClO3 in 100 g of water at 10 °C, approximately 30 g will not dissolve"

True. In the graph we can clearly see that at 10 °C only about 90 g is being dissolved so, the rest of the mass is still there as mass.

6 0

2 years ago

20 points BRAINLIEST

IRISSAK [1]

Answer: option c or 3 because you gotta take out the 6 so u do -6 which left is negative and right is positive and then get rid of the +2 exponent so up is positive and down is negative so you move -2 which is down.

Step-by-step explanation:

6 0

3 years ago

if you had to come up with a catchy name for a product that keeps houses cool by applying it to your roof what would u call it?

Verdich [7]

Answer:

home aerodome ac

Step-by-step explanation:

3 0

2 years ago

May I please receive help?

Natalija [7]

Answer:

<h2>Line 1 and line 2: ●Parallel ○Perpendicular ○Nether</h2><h2>Line 1 and line 3: ○Parallel ○Perpendicular ●Nether</h2><h2>Line 2 and line 3: ○Parallel ●Perpendicular ○Nether</h2>