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2 years ago

14

Calculate the amount of heat energy is needed to raise the temperature of 5.00 grams of lead from 25.0 to 35.0 degrees Celsius,

if the specific heat capacity of lead is 0.129 J/g/C.

1 answer:

grandymaker [24]2 years ago

3 0

Answer: 6.45 Joules

Explanation: I just did it

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A certain electrolyte solution contains 1 gram of salt for every 8 grams of sugar and every 200 grams of water. If the sugar to

12345 [234]

Answer:

The resulting solution contains approximately 666 g of water.

Explanation:

In the initial solution we have:

1g salt : 8g sugar : 200g water

This means that the ratios are:

$\frac{salt}{sugar} = \frac{1}{8} \\\\\frac{sugar}{water} = \frac{8}{200} =\frac{1}{25}$

In the final solution we have:

5g salt: xg sugar: yg water

The new ratios are:

$\frac{salt}{sugar} = \frac{3}{8} \\\\\frac{sugar}{water} = \frac{1}{50}$

Now we can calculate the amount of sugar in the final solution:

$\frac{salt}{sugar} = \frac{5}{x} =\frac{3}{8} \\\\X = 13.333 g$

Finally, we calculate the amount of water:

$\frac{sugar}{water} = \frac{13.333}{y} = \frac{1}{50} \\y = 666.667 g$

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3 years ago

Write the symbols of following elements. a. Phosphorus b. Bromine c. Silver d. Sodium

Vikki [24]

Answer:

a. P

b. Br

c. Ag

d. Na

Explanation:

The Periodic Table says so

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2 years ago

Water boils at 100Â°C at sea level. If the water in this experiment did not boil at 100Â°C, what could be the reason?

slavikrds [6]

The water isn’t at sea level

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Limiting factors for an Antelope include:

cricket20 [7]

Answer:

D all the above

Explanation:

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1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d8

MAXImum [283]

Answer:

Pd (palladium).

Explanation:

46 electrons total, this is representative of the Pd (palladium) element.

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