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erik [133]
3 years ago
10

How much energy is required to raise 10 grams of water by 10 degrees Celsius? (in Joules)

Chemistry
2 answers:
Georgia [21]3 years ago
4 0

Answer:

420j

Explanation:

Heat capacity =10*4.2*10

=420j

miv72 [106K]3 years ago
3 0

<u>Answer:</u> The amount of heat required by water is 418.6 J

<u>Explanation:</u>

To calculate the heat absorbed by water, we use the equation:

q=mc\Delta T

where,

q = heat absorbed

m = mass of water = 10 g

c = heat capacity of water = 4.186 J/g°C

\Delta T = change in temperature = 10°C

Putting values in above equation, we get:

q=10g\times 4.186J/g^oC\times 10^oC\\\\q=418.6J

Hence, the amount of heat required by water is 418.6 J

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A solid reactant is placed into a beaker of a warm water. The liquid vigorously bubbles as the solid dissolves into the solution
Andrej [43]

Answer:

Fewer bubbles will be produced because of fewer collisions of reactant molecules

Explanation:

As the solid dissolves into the solution after the liquid has been vigorously bubbled, if the temperature of the liquid is reduced a little, what will happen is that fewer bubbles will be produced as a result of lesser amount of collisions occurring between the reactant molecules

3 0
3 years ago
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A chemical reaction in which compounds break up into simpler constituents is a _______ reaction.
klio [65]
C. decomposition reaction
8 0
3 years ago
A sample of metal has a mass of 16.5916.59 g, and a volume of 5.815.81 mL. What is the density of this metal
Oxana [17]

Answer:

=> 2.8554 g/mL

Explanation:

To determine the formula to use in solving such a problem, you have to consider what you have been given.

We have;

mass (m)     = 16.59 g

Volume (v) =  5.81 mL

From our question, we are to determine the density (rho) of the rock.

The formula:

p = \frac{m}{v}

Substitute the values into the formula:

​p = \frac{16.59 g}{5.81 mL} \\   = 2.8554 g/mL

= 2.8554 g/mL

Therefore, the density (rho) of the rock is 2.8554 g/mL.

5 0
1 year ago
A flexible container at an initial volume of 5.120 L contains 8.500 mol of gas.
SOVA2 [1]

Answer:

30.05 mol

Explanation:

solving the proportion

V1 / n1 = V2 / n2

5.120 L            18.10 L

–––––––– = ––––––

8.500 mol         x

x = 30.05 mol

6 0
2 years ago
How many moles are in 5.0 x 10^25 atoms of iron?
Andreas93 [3]

Hello!

To find the number of moles that are in the given amount, we need to divide the total number of atoms by Avogadro's number, which is 1 mole is equal to 6.02 x 10^23 atoms.

5.0 x 10^25 / 6.02 x 10^23 ≈ 83.0564

Therefore, there are about 83.06 moles of iron (sigfig: 83 moles).

7 0
3 years ago
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