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AveGali [126]
3 years ago
13

The energy to move water And allow it to change from a to a gas or solid ultimately comes from the

Chemistry
1 answer:
rosijanka [135]3 years ago
4 0

Answer:

Explanation:

Solid

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Which element has fewer than 4 dots In its Electron dot diagrams
nadya68 [22]

Answer:Strontium (Sr) and Gallium (Ga)

Explanation:

Strontium (Sr) and Gallium (Ga) are the elements which have fewer than four dots in the electron dot diagrams. Explanation: Electron dot diagrams are the diagrams which represent the valence electrons in an element. The electrons are represented by the dots in these diagrams.

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When a H atom and a Cl atom react to form a HCl molecule,
seraphim [82]

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There are three subatomic particles found inside atoms. Two of the subatomic particle have a charge of positive or negative. The
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Neutrons don't have a charge. They are neutral

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Read 2 more answers
A 36.0−g sample of an unknown metal at 99°C was placed in a constant-pressure calorimeter containing 70.0 g of water at 24.0°C.
Dimas [21]

Answer: 0.52849 j /g °C

Explanation:

Given the following :

Mass of metal = 36g

Δ Temperature of metal = (28.4 - 99)°C = - 70.6°C

Mass of water = 70g

Δ in temperature of water = (28.4 - 24.0) = 4.4°C

Heat lost by metal = (heat gained by water + heat gained by calorimeter)

Quantity of heat(q) = mcΔT

Where; m = mass of object ; c = specific heat capacity of object

Heat lost by metal:

- (36 × c × - 70.6) = 2541.6c - - - - (1)

Heta gained by water and calorimeter :

(70 × 4.184 × 4.4) + (12.4 × 4.4) = 1288.672 + 54.56 = 1343.232 - - - - (2)

Equating (1) and (2)

2541.6c = 1343.232

c = 1343.232 / 2541.6

c = 0.52849 j /g °C

8 0
3 years ago
Semimetals is a term which refers to
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I guess you could call them that. In chemistry, we call them Metalloids though.
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2 years ago
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