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OverLord2011 [107]
2 years ago
12

24

Chemistry
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

the answer is b

Explanation:

You might be interested in
Lonic bonds form between oppositely charged
fomenos

answer:

ionic bonds form between oppositely charged ions

explanation:

  • an ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.
  • ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal.
  • a covalent bond involves a pair of electrons being shared between atoms.
4 0
2 years ago
The enthalpy change for converting 1.00 mol of ice at -25.0 °c to water at 70.0 °c is __________ kj. the specific heats of ice
Margarita [4]
Answer is: 6,16 kJ.
1) changing  temperature of ice from -25°C to 0°C.
Q₁ = m·C·ΔT
Q₁ = 18 g · 2 J/g·°C · 25°C 
Q₁ = 900 J.
m(H₂O) = 1mol · 18 g/mol = 18 g.
C - <span>specific heat of ice.
</span>2) changing temperature of water from 0°C to 70°C.
Q₁ = m·C·ΔT
Q₁ = 18 g · 4,18 J/g·°C · 70°C 
Q₁ = 5266,8 J.
C - specific heat of water.
Q = Q₁ + Q₂ = 900 J + 5266,8 J
Q = 6166,8 J = 6,16 kJ.

8 0
2 years ago
Please help :) ill mark you as the brainiest hope you have a good day
Novay_Z [31]

Have a wonderful day :) thanks for the points

7 0
3 years ago
What column do these go into physical or chemical property ??
RSB [31]

Answer:

Explanation:

Chemical properties:

These are the properties which involve the chemical reaction.

For example:

Combustion, flammability, toxicity, enthalpy of formation etc are chemical properties.

Reaction with oxygen ( chemical property)

Conduction of heat ( chemical property)

Not flammable (chemical property)

Physical properties:

The property which not involve any chemical reaction it only involve the physical appearance of substance.

For example:

Density, odor, color, texture etc.

Smooth texture (physical property)

Reddish color ( chemical property)

Sink in water ( chemical property)

6 0
3 years ago
Endothermic/exothermic
ycow [4]
Endothermic is when the compound absorbs energy in the reaction. Exothermic is the opposite: the compound releases energy in the reaction.
4 0
3 years ago
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