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Pepsi [2]
2 years ago
10

Do water and ice have the same composition

Chemistry
2 answers:
Molodets [167]2 years ago
7 0
Ice and water are both H2O. Ice has less energy so it is frozen. Water has more energy than ice. They are made up of the same molecules do yes, water and ice have the same composition. Hope this helps! ;)
Dvinal [7]2 years ago
5 0
Yes, because the water and ice are made out of the same thing - one is just frozen
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Determine the specific heat of a material if a 35. Gram sample absorbed 96. Joules of energy as it was heated from 293 K to 313
podryga [215]

The specific heat of a material is 0.137 J/g°C.

<u>Explanation:</u>

The specific heat formula relates the heat energy required to perform a certain reaction with the mass of the reactants, specific heat and the change in temperature during the reaction.

Q = mcΔT

Here m is the mass, Q is the heat energy required, ΔT is the change in temperature and c is the specific heat.

So, if we have to determine the specific heat of the object, then we have to determine the ratio of heat required to mass of the object with change in time, as shown below.

c = \frac{Q}{m\ \times\ delta\ T}

As mass of the object m is given as 35 g and the energy is said to be absorbed so Q = 96 J.

The temperature values given should be changed from kelvin to celsius first. So, initial temperature 293 K will become 293-273.15 = 19.85°C.

Similarly, the final temperature will be 313 - 273.15 = 39.85°C.

Then, ΔT = 39.85-19.85 = 20 °C

Then,

c = \frac{96}{35 \times 20} =\frac{96}{700}  = 0.137 J/g^{o}C

So, the specific heat of a material is 0.137 J/g°C.

6 0
3 years ago
Which statement is correct about the rate of most chemical reactions? It increases when the concentration of reactants decreases
stiv31 [10]

Answer:

It increases when the temperature increases.

Explanation:

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7 0
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The basic building blocks of a protein are
snow_lady [41]


The building  blocks of protein are amino acids.

Amino acids are a class of organic compounds that contain at least one amino group, -NH2, and carboxyl group, -COOH.

Alpha amino acids , RCH(NH2)COOH, are the building blocks  from which proteins are constructed.

The NH group of one amino acid and the COOH  group of the other amino acid are joined together and a peptide bond -CONH-  is formed between the two amino acids and the product is called a dipeptide.





5 0
2 years ago
A compound consists of atoms of two or more elements combined in a _______.
Mice21 [21]

Answer: small, whole-number ratio

Explanation: 1) A compound consists of atoms of two or more elements combined in a small, whole-number ratio. In a given compound, the numbers of atoms of each of its elements are always present in the same ratio

3 0
3 years ago
What happened after the gas syringe was inserted into the flask with the methane gas?
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7 0
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