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3 years ago

How is the periodic table organised?

Chemistry

2 answers:

11Alexandr11 [23.1K]3 years ago

7 0

Periodic table is organized on atomic number left to right and rows are periods columns are groups hope it helps

prisoha [69]3 years ago

5 0

The periodic table brings order to information about the chemical elements. The chemical elements are arranged in order of increasing atomic number. The horizontal rows are called periods and the vertical columns are called groups. Elements in the same group have similar chemical properties.

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3 years ago

If told to determine whether or an unknown substance is either salt or sugar what do you do to determine which it is explain?

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3 years ago

Calculate the number of pounds of CO2 released into the atmosphere when a 22.0 gallon tank of gasoline is burned in an automobil

IrinaK [193]

Answer:

391.28771 pounds of carbon-dioxide released into the atmosphere.

Explanation:

Density of the gasoline ,d= 0.692 g/mL

Volume of gasoline in an tanks,V = 22.0 gallons = 83,279.02 mL

Let mass of the gasolin be M

$d=\frac{M}{V}$

M = V × d = 83,279.02 mL × 0.692 g/mL=57,629.081 g

Assume that gasoline is primarily octane (given)

$2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O$

Mass of octane burnt in the tank = M = 57,629.081 g

Moles of octane = $\frac{57,629.081 g}{114.08 g/mol}=505.1637 mol$

According to reaction, 2 moles of octane gives 16 moles of carbon-dioxide.

Then 505.1637 mol of octane will give:

$\frac{16}{2}\times 505.1637 mol=4,041.3100 mol$ of carbon-dioxide

Mass of 4,041.3100 mol of carbon-dioxide:

4,041.3100 mol × 44.01 g/mol = 177,858.05 g

Mass of carbon-dioxide produced in pounds = 391.28771 pounds

391.28771 pounds of carbon-dioxide released into the atmosphe

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3 years ago

Can barium ionically bond with kalium

alexgriva [62]

Answer:

Explanation:

Barium cannot ionically bond with Kalium. Kalium is the Latin name for potassium.

Both Barium and potassium are metals. Metals and Metals do not combine to form ionic compounds. Only metals and non-metals form this bond type.

The reason for this is that ionic bond forms by the transfer of electrons from one specie to another that receives it.
Barium is metal and would freely donate electrons to attain stability.
Kalium is metal and shares similar property.

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