Elements and Compounds

'L' ???? There is no such element.

However,

Li = lithium

La = lanthanum

Lu = lutitium

NB Note two letter elemental symbols have first letter a CAPITAL letter and the second letter is small/lower case. This is the recognosed international standard.

Nitrogen's elemental chemical symbol is a capital 'N'. NOT a lower/small case 'n'.

It exists as a diatomic gas in the atmosphere , sumbolised by 'N2'. Structurally, 'N///N' NB '///' represents a truple bond.

A Triple bonded , diatomic gas.

The Earth's atmosphere is 79% of nitrogen.

When salicylaldehyde reacts with neutral ferric chloride, a complex known as ferric salicylaldehyde is formed. This complex typically appears as a deep purple color. The color change is due to the formation of a coordination compound between the salicylaldehyde and the ferric chloride, resulting in the absorption of certain wavelengths of light and the reflection of others, giving rise to the observed color.

Well, isn't that just a happy little question! To find the percent by mass of carbon in C3H8, you first need to calculate the molar mass of carbon in C3H8, which is 3 times the molar mass of carbon. Then, you divide the molar mass of carbon by the molar mass of C3H8 and multiply by 100 to get the percent by mass. Just remember, there are no mistakes in chemistry, only happy accidents!

The weight of 1 gallon of ferric sulfate can vary depending on its concentration. However, typically, the density of ferric sulfate is around 11.34 pounds per gallon. Therefore, 1 gallon of ferric sulfate would weigh approximately 11.34 pounds.

Oh, dude, when elements react, they give away or take electrons to achieve a stable configuration. It's like a high-stakes game of electron trading - one element might be like, "Here, take my electron, I don't need it," while another is all, "Thanks, I'll add this to my collection." So yeah, electrons are the hot commodity in the world of chemical reactions.

Oh, dude, when you mix nitric acid with potassium hydroxide, you get potassium nitrate and water. It's like a little chemistry party where they all switch partners and make new compounds. So, yeah, it's basically a chemical reaction that forms a salt and water.

NO!!!

Sulphur is an element, thereby does NOT contain anything else.

Similarly Carbon is an element and does NOT contain anything else.

However, these two elements can be mixed , when in powdered form, but NOT combined.

Oh, dude, when you mix ammonium hydroxide with iron (III) chloride, you get a chemical reaction that forms a reddish-brown precipitate of iron (III) hydroxide. It's like a little chemistry magic show, but with more safety goggles and less top hats. So, yeah, that's what goes down when those two chemicals get cozy.

11 electrons in a neutrally charged atom of sodium . It is the same number as the number of protons and the Atomic Number.

However, the sodium ion (NOT Atom) has lost one electron , so there are now 11 protons(+), and 10 electrons(-). Hence

11(+)10(-)= 1(+) Hence the sodium ion is written as 'Na(+)'.

In solution it is a colourless oily liquid

As a solid it is a white flaky solid.

The name "chlorine" originates from the Greek word "chloros," meaning greenish-yellow. This is due to the color of chlorine gas, which was first observed by Swedish chemist Carl Wilhelm Scheele in 1774. The element was officially named "chlorine" by Sir Humphry Davy in 1810.

It is a solution. a compound and a mixture.

Ther compound it the waster (H2O) molecules.

The solution is the various minerals that may dissolved in water.

Finally the mixture is the fine particles of mineralsd thayt have not dissolved in the water.

NB THe minerals in their own right may also be compounds. and mixtures of compounds.

Oh, dude, cutting sodium metal with a knife is totally a physical change. It's like slicing a stick of butter, but way more explosive if you're not careful. So yeah, technically correct answer, but like, maybe don't try it at home unless you're looking for a science experiment gone wrong.

Bromine is a better leaving group than chlorine due to its larger atomic size and lower electronegativity. The larger size of bromine allows for better stabilization of the negative charge that forms when it leaves a molecule, making it more stable and easier to depart. Additionally, the lower electronegativity of bromine means it is less likely to retain the departing electron pair, facilitating the leaving group process.

It is a mixture because it has more than one element. In other words it is not a pure substance

No, americium itself is not explosive. Americium is a radioactive element commonly used in smoke detectors and other applications. While it can emit alpha particles and gamma rays, which can be harmful if not properly handled, it does not possess explosive properties.

Fluorine has 7 valence electrons in its outer shell. In order to achieve a full octet, fluorine needs one additional electron to fill its shell. This means that fluorine has 1 bonding electron available to form covalent bonds with other atoms.

Well, darling, the element with 5 nucleons is good ol' Boron. It's got 5 protons and 5 neutrons chilling in its nucleus, making it a total badass in the periodic table. So, if you're looking for an element with just the right amount of nucleons, Boron is your go-to guy.

Oxygen does not typically bond with noble gases such as helium, neon, and argon. Noble gases are stable and inert elements that do not readily react with other elements. Oxygen also does not bond with certain metals, like gold and platinum, under normal conditions.

Depends on the temperature and pressure of these gases.

In the Earth's atmosphere , oxygen occupies approximately 20% of the volume, and nitrogen occupies approxiamtely 79% by volume. The remaining 1% is occupies by water vapour, carbon dioxide, noble(inert) gases, sulphur dioxide, methane, an trace amounts of other gases.

Well, isn't that just a happy little question! Sodium ions are smaller in size compared to other ions, like calcium or magnesium, so they can slip through the ion exchange membranes more easily in a deionization plant. It's all about those tiny differences in size that make sodium ions a bit more slippery in the process. Just remember, every ion has its own special way of moving through the world, creating beautiful water along the way.

Well, darling, changing the number of electrons in an atom would essentially change its charge. More electrons means a more negative charge, while fewer electrons means a more positive charge. It's like adding or removing toppings from a pizza - it changes the flavor, or in this case, the overall chemistry of the atom.

Potassium chloride dissolved in water typically appears as a clear or slightly cloudy solution with no distinct color.