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Sergio039 [100]
4 years ago
6

Mercury is an element. Which of the following would be the same for all atoms of mercury?

Chemistry
2 answers:
Flura [38]4 years ago
8 0

The number of protons

for all atoms of mercury will remain the same while different isotopes may have different number of neutrons.

Explanation:

Atoms should have equal numbers of protons and electrons. In our example, an atom of thirty six|chemical element, it should contain thirty six electrons since it contains 36 protons. Electrons are organized around atoms in a very special method.

ycow [4]4 years ago
6 0

Answer:

The number of protons

for all atoms of mercury will remain the same while different isotopes may have different number of neutrons.

Explanation:

Atoms should have equal numbers of protons and electrons. In our example, an atom of thirty six|chemical element, it should contain thirty six electrons since it contains 36 protons. Electrons are organized around atoms in a very special method

Read more on Brainly.com - brainly.com/question/964897#readmore

Explanation:

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Write a balanced nuclear equation for the beta decay of protactinium
PSYCHO15rus [73]
_{91}^{231}Pa --\ \textgreater \  _{92}^{231}U + _{-1}^{0}e
7 0
3 years ago
At 25 celsius, 1.00 ,ole of O2 was found to occupy a volume of 12.5 L at a pressure of 198 kPa. What value of the gas constant i
mr Goodwill [35]

Answer:

R=8.301\frac{L*kPa}{mol*K}

Explanation:

Hello,

In this case, assuming oxygen as an ideal gas, it is described by:

PV=nRT

Whereas the gas constant R is required, therefore, it is computed as shown below:

R=\frac{PV}{nT} =\frac{198kPa*12.5L}{1.00mol*(25+273.15)K} \\\\R=8.301\frac{L*kPa}{mol*K}

Best regards.

4 0
3 years ago
Calculate the standard cell potential of the following cell at 25°C. Sn(s) | Sn2+(aq) || Cu2+(aq) | Cu(s).
Semmy [17]

Answer:

0.48 V

Explanation:

Usually in the cell notation, the left side shows oxidation. So,

Oxidation half reaction:

Sn_{(s)}\rightarrow Sn^{2+}_{(aq)}+2e^-    E^o_{ox}=-E^o_{red}=-(-0.14\ V)=0.14\ V

Reduction half reaction:

Cu^{2+}_{(aq)}+2e^-\rightarrow Cu_{(s)}    E^o_{red}=0.34\ V

E^o_{cell}=E^o_{ox}+E^o_{red}= (0.14+0.34)\ V=0.48\ V

4 0
3 years ago
14 point. Please help need this ASAP.
mezya [45]
What are you asking
7 0
3 years ago
(pls help !!) question is in image
Anastaziya [24]

Answer:

the second option is correct

Explanation:

maybe I think b is correct

6 0
2 years ago
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