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DaniilM [7]
3 years ago
8

Potassium is located in the first group of the periodic table. Use this information to answer each question.

Chemistry
2 answers:
melamori03 [73]3 years ago
3 0

Explanation:

potassium is metal

potassium 1

good conductors of thermal heat

LuckyWell [14K]3 years ago
3 0
Potassium is a metal, it has one valence electron, and conductors of heat and electricity
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Which statement best describes a mole ?
pentagon [3]
<span>
It contains 6.02 mc001-1.jpg 1023 grams of sodium chloride.

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5 0
3 years ago
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In preparation for a demonstration, your professor brings a 1.50−L bottle of sulfur dioxide into the lecture hall before class t
solmaris [256]

Answer:

4.81 moles

Explanation:

The total pressure of the gas = Pressure at which gauge reads zero + pressure read by it.

Pressure at which gauge reads zero = 14.7 psi

Pressure read by the gauge = 988 psi

Total pressure = 14.7 + 988 psi = 1002.7 psi

Also, P (psi) = P (atm) / 14.696

Pressure = 1002.7 / 14.696  = 68.2297 atm

Temperature = 25 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T = (25 + 273.15) K = 298.15 K  

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Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

68.2297 atm × 1.5 L = n × 0.0821 L.atm/K.mol × 298.15 K  

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4 0
3 years ago
How many valence electrons are in oxygen?
Sunny_sXe [5.5K]
 i think it is 6 valence electrons 
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3 years ago
Can someone help me with this please
never [62]

Answer: B. 1:2

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The formula of the compound formed is BeCl2.

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3 years ago
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Vikentia [17]

Answer:

Mantle

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Hope that help <3

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