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MrMuchimi
3 years ago
13

what does ice cream melt on a hot day which type of thermal energy transfer does this melting represents

Chemistry
1 answer:
Rzqust [24]3 years ago
6 0
Because the coldness in  the ice cream and the suns gamma rays are hitting the ice cream and then it will start to melt. and that is why ice cream melts.
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How many neutrons are there in 9 molecules of P4 with mass number 31 and proton number 15?
aalyn [17]

A = mass number which is equal to the total number of protons + number of neutrons, Z= atomic number of any element which is also indicates Number of protons or number of electron in the given atom.


The formula to calculate neutron would be :

mass number - proton  

31   - 15     = 16

Thus 16 neutrons are found in one atom of P  

There are 4 atom in one molecule

Thus  

4 atom /1 molecule * 9 molecule * 16 neutron / 1 atom  

= 4*9*16= 576 neutrons


7 0
3 years ago
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A serving of Cheez-Its releases 1.30 x 10^4 kcal (1 kcal = 4.18 kJ) when digested by your body. If this same amount of energy we
kondor19780726 [428]

Answer:

The final temperature is:- 7428571463.57 °C

Explanation:

The expression for the calculation of heat is shown below as:-

Q=m\times C\times \Delta T

Where,  

Q  is the heat absorbed/released

m is the mass

C is the specific heat capacity

\Delta T  is the temperature change

Thus, given that:-

Mass of water = 1.75 mg = 0.00175 g ( 1 g = 0.001 mg)

Specific heat of water = 4.18 J/g°C

Initial temperature = 35 °C

Final temperature = x °C

\Delta T=(x-35)\ ^0C/tex]
Q = [tex]1.3\times 10^4 kcal

Also, 1 kcal = 4.18 kJ = 4.18\times 10^3 J

So, Q = 1.3\times 10^4\times 4.18\times 10^3 J = 54340000 J

So,  

54340000=0.00175\times 4.18\times (x-35)

0.00175\times \:4.18\left(x-35\right)=54340000

x-35=\frac{54340000}{0.007315}

x=7428571463.57

Thus, the final temperature is:- 7428571463.57 °C

3 0
2 years ago
What is the formula for germicide that is sufficient to kill blood-borne pathogens?
Colt1911 [192]
It is 1 ounce. Bloodborne Pathogens can be transmitted when blood or body liquid from a tainted individual enters someone else's body by means of needle-sticks, human chomps, cuts, scraped areas, or through mucous films. Likewise, semen, vaginal discharges and salivation in dental methods are considered conceivably tainted body liquids.
7 0
3 years ago
What type of salt will affect temperature most?
vodka [1.7K]

Answer:

Sodium chloride

Explanation:

7 0
3 years ago
PPLEASE HELP I WILL GIVE BRAINLIEST AND LOT OF POINTS
marysya [2.9K]

Answer:

Hi, even though this is really not a question or an answer to a question.

Explanation:

Do you know if any of this stuff involves 6th grade?

6 0
3 years ago
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