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Valentin [98]
2 years ago
10

If you want to melt ice into liquid water, does the ice absorbs heat or release heat? Is this endothermic or exothermic?

Chemistry
2 answers:
Ede4ka [16]2 years ago
7 0

Answer:

absorbs heat, which makes it endothermic.

Explanation:

Basically melting ice is it in windows or Mac reaction makes the ice absorbs heat energy which causes a change to occur

kherson [118]2 years ago
3 0

Answer:

Endothermic

Explanation:

This would be an endothermic reaction, due to the fact that the water would be signifigantly warmer then the ice cube, which causes it to melt.

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4Fe + 302 → 2Fe2O3
frez [133]

Answer:

2 -> O and Fe

Explanation:

5 0
3 years ago
The diameter of a hydrogen atom is approximately 1.06 ✕ 10−10 m, as defined by the diameter of the spherical electron cloud arou
mylen [45]

Answer:

a) 10.0 mm

b) 8.7 x 10¹³ times

Explanation:

Atom diameter = 1.06 x 10⁻¹⁰ m  ________________ 100%

Nucleus diameter = 2.40 x 10⁻¹⁵ m ______________   x

x = 2.26 x 10⁻³ %

The nucleus diameter is equivalent to 2.26 x 10⁻³ % of the total atom size.

a) The Empire State Building model:

1 ft = 304.8 mm

1454 ft = 443179.2 mm

443179.2 mm______ 100%

        y           ______   2.26 x 10⁻³ %

              y = 10.0 mm

In this model,  the diameter of the nucleus would be 10.0 mm.

b) Sphere volume: V =(4 · π · r³ )/3

V atom = (4 . π .( 0.53x10⁻¹⁰)³ )/3

V atom = 6.2 x 10⁻³¹ m³

V nucleus = (4 . π .( 1.2x10⁻¹⁵)³ )/3

V nucleus = 7.2 x 10⁻⁴⁵ m³

V atom / V nucleus = 6.2 x 10⁻³¹ m³ / 7.2 x 10⁻⁴⁵ m³

V atom / V nucleus = 8.7 x 10¹³

The atom is  times 8.7 x 10¹³ larger in volume than its nucleus.        

6 0
3 years ago
The electrolysis of molten NaCl is an industrial process. What does the electrolysis produce?
saveliy_v [14]

Answer:

it is D

Explanation:

NaOH and chlorine gas

Electrolysis of Aqueous NaCl Since water can be both oxidized and reduced, it competes with the dissolved Na+ and Cl– ions. Rather than producing sodium, hydrogen is produced. ... The net process is the electrolysis of an aqueous solution of NaCl into industrially useful products sodium hydroxide (NaOH) and chlorine gas.

3 0
3 years ago
WILL MARK BRAINLIEST!! URGENT CORRECT ANSWERS NEEDED
atroni [7]
I hope this helps you;);

6 0
3 years ago
Which substance contains a bond with the greatest ionic character?
agasfer [191]
Hello!

The correct answer is 1. KCI.

I really hope this helped you out! c:
4 0
3 years ago
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