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Lynna [10]
3 years ago
12

A hot cup of water has fewer molecules than a hot tub of water. This same cup of

Chemistry
2 answers:
Mrac [35]3 years ago
6 0

Answer:eeded to change the temperature of one gram of a substance one degree ... iron(specific heat=0.12 cal/g C) and a cup of water both have the same temperature. ... If you drop a hot rock into a pail of water,the temperature of the rock and the water ... Therefore, water molecules have higher specific heat capacity than metals

Explanation:

Mnenie [13.5K]3 years ago
5 0

Answer:

Answer:eeded to change the temperature of one gram of a substance one degree ... iron(specific heat=0.12 cal/g C) and a cup of water both have the same temperature. ... If you drop a hot rock into a pail of water,the temperature of the rock and the water ... Therefore, water molecules have higher specific heat capacity than metals

Explanation:

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Distinguish between atom molecules, and ions
NNADVOKAT [17]

Explanation:

Atoms are the smallest unit of matter that can't be broken down chemically. Molecules are groups of two or more atoms that are chemically bonded. Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.

7 0
3 years ago
A buffered solution has a pH of 7.5. What would happen to the pH if a small
musickatia [10]

Answer:

Dear user,

Answer to your query is provided below

When small amount of acid was added to buffered solution, pH will change very less.

Explanation:

Buffer solution resists change in ph on adding small amount of acid or base but when we calculate the value of buffer capacity we take the change in ph when we add acid or base to 1 lit solution of buffer.This contradicts the definition of buffer solution.

5 0
3 years ago
Ultraviolet radiation has a frequency of 6.8×1015 Hz. What is the energy associated with this frequency?
stellarik [79]

Use Planck's equation (E=hv) to solve.  where <span>frequency (v) of ultrviolet radiation is 6.8 × 1015 1/s.  </span><span> </span>The variable h is a constant equal to 6.63 × 10-34 J·s
E= <span>(6.8 × 1015 1/s)x(</span>6.63 × 10-34 J·s)


5 0
3 years ago
Nitrosyl fluoride has the chemical formula NOF. Nitrogen has five valence electrons, oxygen has six, and fluorine has seven. Com
alexira [117]

Answer:

Watch the attached image, please.

Explanation:

To complete the Lewis structure for this covalent compound, you have to draw all the atoms with their valence electrons.

The drew has the nitrogen in the center and the fluoride and oxygen in the sides.

Each one of these atoms has to complete the octet rule, which is the ruler who says that all the atoms want to reach to have eight electrons to feel "stable".

For that reason, you have to arrange the atoms to comply with this rule.

3 0
3 years ago
Two voltaic cells are to be joined so that one will run the other as an electrolytic cell. In the first cell, one half-cell has
stiks02 [169]

Au³⁺ metal ion is reduced in the Au/Cr cell and Co²⁺ metal ion is reduced in the Co/Zr cell

<h3>What is a voltaic cell?</h3>

A voltaic cell is a cell that generates electricity by a spontaneous redox reaction.

It is an electrochemical cell, also known as a galvanic cell and  

Electrical energy is created by converting chemical energy.

Examples of voltaic cells include the dry cell, nickel-cadmium cell, lead storage cell, and fuel cells.

The half-cell reactions for each cell are given by

Au^{3+}(aq) + 3e^- \rightarrow Au(s) ; E° = 1.50 V

Cr^{3+}(aq) + 3e^- \rightarrow Cr(s) ; E° = –0.74 V

Co^{2+}(aq) + 2e^- \rightarrow Co(s) ; E° = –0.28 V

Zn^{2+}(aq) + 2e^- \rightarrow Zn(s) E° = –0.76 V

Thus, Au³⁺ is reduced in the Au/Cr cell and Co²⁺ is reduced in the Co/Zr cell

Learn more about Voltaic cell:

brainly.com/question/24002834

#SPJ4

4 0
2 years ago
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