1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
padilas [110]
3 years ago
10

A woman informs her engineer husband that "hot water will freeze faster than cold water." He calls this statement nonsense but h

e does so in a polite sensitive manner. She answers by saying that she has actually timed the freezing process for ice trays in the home refrigerator and found that hot water does indeed freeze faster. As a friend, you are asked to settle the argument and preserve family harmony. Is there any logical explanation for the woman's observation
Chemistry
1 answer:
ankoles [38]3 years ago
8 0

Answer:

Explanation:

It could be as a result of evaporation from the hot water causing it to have less mass than usual. Evaporation will allow the volume of the hot water to decrease and by so doing will cool faster than cold water which is at a higher mass. This is how I will explain my observations to them.

You might be interested in
10. Liquid changing to gas only at the surface is called
mina [271]

Answer:

Evaporation

Explanation:

Though it doesn't require high temperatures to do so

3 0
3 years ago
A)
Andrews [41]

sorry what us this i don't get it

7 0
3 years ago
2Fe(s) +3H2SO4(aq) →Fe2(SO4)3(aq) +3H2(g)When 10.3 g of iron are reacted with 14.8 moles of sulfuric acid, what is the percent y
Elden [556K]

Answer:

1040%

Explanation:

To solve this question we must convert the mass of Iron to moles in order to find limiting reactant. With limiting reactant we can find the theoretical moles of hydrogen and theoretical mass:

Percent yield = Actual yield (5.40g) / Theoretical yield * 100

<em>Moles Fe -Molar mass: 55.845g/mol-:</em>

10.3g * (1mol / 55.845g) = 0.184 moles of Fe will react.

For a complete reaction of these moles there are necessaries:

0.184 moles Fe* ( 3 mol H2SO4 / 2 mol Fe) = 0.277 moles H2SO4.

As there are 14.8 moles of the acid, <em>Fe is limiting reasctant.</em>

The moles of H2 produced are:

0.184 moles Fe* ( 3 mol H2 / 2 mol Fe) = 0.277 moles H2

The mass is:

0.277 moles H2 * (2.016g/mol) = 0.558g H2

Percent yield is:

5.40g / 0.558g * 100 = 1040%

It is possible the experiment wasn't performed correctly

7 0
3 years ago
A(n) has a definite volume but no shape of its own.
tatuchka [14]

Answer:

liquids

Explanation:

8 0
3 years ago
Which of the following items are true of early nuclear science?
ValentinkaMS [17]
The items that are true of early nuclear science are "the first nuclear reactions were done in the 1880s" and "the first nucleus split was uranium-235." <span>The answers are letters A and D. It is impossible that nucleus was lost during the reaction as it will not follow the law of mass conservation.

</span>
7 0
3 years ago
Other questions:
  • Need Help Please, ASAP:
    8·2 answers
  • An ideal gas has a density of 1.10×10−6 g/cm3 at 1.00×10−3 atm and 80.0 ∘c. identify the gas.
    7·1 answer
  • Potential energy that is related to an object's height above the ground is known as ________ potential energy. A. chemical B. el
    7·2 answers
  • What is the percentage of nitrogen in the fertilizer urea ((nh2) 2co)
    13·1 answer
  • Avoiding an accident when driving can depend on reaction time. That time, measured in seconds from the moment the driver see dan
    14·1 answer
  • Una muestra de 2,5000 (g) de piedra caliza, se disuelve y se precipita el Calcio como oxalato de Calcio (CaC2O4), este precipita
    9·1 answer
  • !!!! If you need more information just let me know.
    9·1 answer
  • Organize the following list of elements from highest to lowest Ionization Energy:
    11·1 answer
  • Hot glassware has a red glow to it<br> O True<br> O False
    12·2 answers
  • How many cl- ions are there in 2. 50 kg of barium chooride.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!