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babunello [35]
2 years ago
7

Why can more sugar be dissolved in hot water than cold water (more solute be dissolved in hot solvent then cold solvent)

Chemistry
1 answer:
lesantik [10]2 years ago
4 0
Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. when water is heated, the molecules gain energy and because of that, move faster. as they move faster, they come in contact with the sugar more often, causing it to dissolve faster.
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1. HBr+KOH=? +H2O<br><br> 2. H2SO4+?= (NH4)2SO4 + 2H2O<br><br> 3. ? + Mg(OH)2=Mg(NO3)2+2H2O
igor_vitrenko [27]

Answer:

1.  KBr

2. 2NH4OH

3. 2NO3

Explanation:

You just need to work backwords and take them step by step.

- Please let me know if these are right, if not I will correct them. Also, if you have any questions pertaining to any of this, let me know, and I will be happy to try and answer them.

6 0
3 years ago
What would the formula of an ionic compound made of Aluminum and Oxygen be?
yan [13]

Answer:

Sodium Aluminate

Formula:-

\quad{:}\longrightarrow\sf NaAlO_2

<h3><u>Explore</u><u> </u><u>more</u><u>:</u><u>-</u></h3>

Melting points and boiling points of some ionic compounds

\boxed{\begin{array}{|c|c|c|c|} \cline {1-4}\Large\sf {Ionic\:Compounds} & \sf \Large {Chemical\:Formula} & \Large \sf{Melting\:point_{(k)}} & \Large\sf {Boiling\:point_{(k)}} \\ &&& \\ \cline {1-4} \sf Sodium\:Chloride & \sf NaCl & 1074 & 1686 \\ &&& \\ \cline {1-4} \sf Lithium\:Chloride & \sf \sf LiCl & 887 & 1600 \\ &&& \\ \cline {1-4} \sf Calcium\:Chloride & \sf CaCl_2 & 1045 & 1900 \\ &&& \\ \cline {1-4} \sf Calcium\:Oxide & \sf CaO & 2850 & 3120 \\ &&& \\ \cline {1-4} \sf Magnesium\:Chloride & \sf MgCl_2 & 981 & 1685 \\ &&& \\ \cline {1-4} \end{array}}

8 0
2 years ago
4. If the earth were to heat up by 3 degrees, approximately how much would the sea level rise?
Ksju [112]

The sea level would rise by some 50 meters.

Explanation:

If the earth's temperature increases by 3 degrees the north and south pole would experience the ice melt at high speed.

The life will get difficult on the plains.

The extinction of some species will happen.

The sea level would rise by 50 meters. The increased sea level will cause depletion of habitat from plants and animals.

The floods will occur, land erosion, soil for agriculture land will get contaminated with the salt.

8 0
3 years ago
Which is a chemical property of hydrogen?
koban [17]
The answers this question is A.
6 0
3 years ago
Read 2 more answers
15) The average human is ~60% water, which translates to ~44.3 kg of water. If you eat a Reece's peanut butter cup (105 Calories
EastWind [94]

Answer: D) 2.37°C

Explanation:

4.39x10^5J(\frac{g°C}{4.184J} )(\frac{kg}{1000g})(\frac{1}{44.3kg} ) =2.37°C

3 0
2 years ago
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