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AlexFokin [52]
2 years ago
14

How much heat is required to change temperature of 10 g of water from 4 °C to 8 °C? (Water has a specific heat of 4.18 )?

Chemistry
1 answer:
Andrews [41]2 years ago
5 0

Answer: 167.2 J

Explanation:

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Given 16.2 grams of substance Y, if the substance absorbs 2722 joules of energy and the specific heat of the substance is 9.22 J
snow_tiger [21]
Since the substance absorbs heat, it is expected that the temperature will rise. The formula for the internal energy of a substance is given by the equation:

ΔU = mCpΔT

where:

ΔU = internal energy
m = mass of substance
Cp = specific heat capacity of substance
ΔT = change in temperature

ΔU = 2722 Joules = 16.2 grams (9.22 J/g-°C) (Tf - 26°C)

This gives a final temperature of Tf = 44.22 °C
4 0
3 years ago
X, Y & Z represents 2, 12 & 17 relatively a. Write the electronic configuration of x, y, and z b. Place the elements in
olasank [31]

The electronic configuration of x, y, and z.

x=1s^2

Y= 1s^22s^22p^63s^2

Z= 1s^22s^22p^63s^23p^5

<h3>What is an electronic configuration?</h3>

Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.

a.

x=1s^2

Y= 1s^22s^22p^63s^2

Z= 1s^22s^22p^63s^23p^5

b.

x= Period 1 and group18

Y=Element is in period 3 and Group 2

Z=Element is in period 3 and group 17.

c.

X, Y & Z represents Helium, magnesium, and chlorine.

Learn more about the electronic configuration here:

brainly.com/question/19589767

#SPJ1

3 0
2 years ago
Write word equations for the reactions of a) magnesium with chlorine b) potassium with oxygen c) sodium with bromine d) carbon w
IRINA_888 [86]
A) Magnesium + Chlorine -> Magnesium chloride ( Mg + Cl2 -> MgCl2)

b) Potassium + Oxygen -> Potassium oxide
( 2K + O2 -> K2O )

c) Sodium + Bromine -> Sodium bromide
( 2Na + Br2 -> 2NaBr)

d) Carbon + Oxygen -> Carbon dioxide
( C + O2 -> CO2 ) This reaction occurs when heated.

4 0
3 years ago
When producing a soluble salt in a reaction between an acid and an alkali, how can you prepare dry solid crystals from the solut
igor_vitrenko [27]

Answer:

aqueous solution

Explanation:

7 0
3 years ago
New York State is located in which two hemispheres? How do you know this?
Helen [10]
Well, every location is located in two hemispheres. New York is in the north western hemisphere. North of the equator and west of the prime meridian
3 0
3 years ago
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