Which element on the periodic table has chemical properties that are most similar to those of carbon?

1 answer:

6 0

Silicon, it's bring brother would be the prime candidate, although its compounds are notably different from those of carbon.

You might be interested in

Calculate the number of molecules in 0.54 grams of Ca(NO3)2

Volgvan

Explanation:

We have to find the number of molecules that are present in 0.54 g of Ca(NO₃)₂.

First we have to convert the mass of our sample into moles of Ca(NO₃)₂. We will use the molar mass of Ca(NO₃)₂ to do that.

molar mass of Ca = 40.08 g/mol

molar mass of N = 14.01 g/mol

molar mass of O = 16.00 g/mol

molar mass of Ca(NO₃)₂ = 1 * 40.08 g/mol + 2 * 14.01 g/mol + 6 * 16.00 g/mol

molar mass of Ca(NO₃)₂ = 164.10 g/mol

mass of Ca(NO₃)₂ = 0.54 g

moles of Ca(NO₃)₂ = 0.54 g * 1 mol/(164.10 g)

moles of Ca(NO₃)₂ = 0.00329 moles

According to Avogadro's number there are 6.022 *10^23 molecules in 1 mol of molecules. We can use that relationship to find the number of molecules that are present in our sample.

6.022 *10^23 molecules = 1 mol

molecules of Ca(NO₃)₂ = 0.00329 moles * 6.022 *10^23 molecules/(1 mol)

molecules of Ca(NO₃)₂ = 2.0 * 10^21 molecules

Answer: there are 2.0 * 10^21 molecules of Ca(NO₃)₂ in 0.54 g of it.

5 0

1 year ago

Each element on the periodic table has a unique set of properties: Metal vs nonmetal; number of protons; atomic mass; number of

igomit [66]

The periodic table arranges elements in increasing
atomic number from left to right and top to bottom.
Horizontal rows on the periodic table are periods.
Elements in the same period have the same number of
electron shells.
Vertical columns on the periodic table are groups.
Elements in the same group have the same number of
valence electrons.

7 0

2 years ago

List two assumptions of the Kinetic Molecular Theory.

Phantasy [73]

These are 3 assumptions that i know for a fact. Hope this helped.

1.Gas particles are continuous, rapid, random motion. They therefore possess kinetic energy, which is energy of motion.

2.There are no forces of attraction between gas particles.

3.The temperature of a gas depends on the average kinetic energy of the particles of the gas.

8 0

4 years ago

Read 2 more answers

A mole of the element U (uranium) and a mole of CO2

ElenaW [278]

<span>An equal number of particles. Hope this helps! :D</span>

4 0

3 years ago

What is the molarity of 40ml of NaOH if it takes 25ml of 0.5 molar HCl to neutralize it?

Oksanka [162]

Answer:

Molarity of 40 ml of NaoH is 0.3125 mL