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3 years ago

Describe a group of family on the periodic table

Chemistry

2 answers:

lana66690 [7]3 years ago

6 0

Metals are all in the center of the periodic table and are all made up of metals

Elina [12.6K]3 years ago

4 0

Groups/families are the vertical columns, and each group has similar properties. For example group 18 is the noble gases, which are all unreactive.

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Et answer

Molodets [167]

Answer:

do it yourself

mate.

<h2>because doing work yourself and understanding increases your knowledge understand</h2>

<h3>and mark my answer as Brainlist because marking my answer as Brainlist you would not be losing anything and about your answer do yourself</h3>

7 0

2 years ago

There is an old story about a king and his crown. The king hired a goldsmith to make him a crown a pure gold. After the king rec

iren [92.7K]

I've actually used the magnet test to determine if a gold necklace of mine was real or not. If the gold item aka the crown is attracted to a magnet, it is definitely not real gold.if it isn't then its real gold.

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2 years ago

Read 2 more answers

What occurs when a neutron strikes a stable isotope and causes it to become unstable? A. Energy to mass conversion

Vsevolod [243]

Answer:

Why some elements are radioactive (unstable). When the atoms of an element have extra neutrons or protons it creates extra energy in the nucleus and causes the atom to become unbalanced or unstable. Whether radioactive elements can become stable and if so, how. The unstable nucleus of radioactive atoms emit radiation.

Explanation:

hope this helps

6 0

2 years ago

Read 2 more answers

Solve the problem for the moles of oxygen. mol O2 DONE

Elza [17]

Answer: The answer is 0.245

Explanation: That is what it said the answer was

8 0

2 years ago

A gas system contains 2.00 moles of O2 and CO2 gas, has an initial temperature of 25.0 oC and is under 1.00 atm of pressure. If

Ainat [17]

Answer:

$V_2=52.2L$

Explanation:

Hello there!

In this case, by bearing to to mind the given conditions, it is firstly possible to determine the initial volume of the closed system via the ideal gas equation:

$PV=nRT\\\\V=\frac{2.00mol*0.08206\frac{atm*L}{mol*K}*298.15K}{1.00 atm} \\\\V=48.9L$

Which is V1 in the Charles' law:

$\frac{T_2}{V_2} =\frac{T_1}{V_1}$

And of course, T1 is 298.15 (25+273.15). Therefore, by solving for V2 as the final volume, we obtain:

$V_2=\frac{V_1T_2}{T_1}\\\\V_2=\frac{48.9L*(45+273.15)K}{(25+273.15)K} \\\\V_2=52.2L$

Best regards!

8 0

2 years ago