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Elements and Compounds

Questions about the properties and characteristics of elements as observed in nature and in compounds. Chemical formulas are also converted to and from symbols in covalent or ionic bonds. All the questions you want to ask about the elements and the compounds they form.

500 Questions

How many atoms are in 2HNO3?

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There are 10 atoms in two nitric acid molecules. Namely they are two hydrogen atoms, two nitrogen atoms and six oxygen atoms.

What are 5 things that create CO2?

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Animals, including human beings when exhaling (breathing out)

Volcanoes erupting

Combustion of fossil fuels . (Cars Airplanes etc.,)

Industrial reduction of metal ores ( iron ore reduction)

Is sodium safe to eat or touch?

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As the elemental metal NO!!!! Reason, it is extremely reactive with any oxygen containing compound. e.g. water, oxygen , human flesh.

As the sodium cation, we do need it in our diets. It can be ingested from vegetative matter, such as strawberries.

How is KCl a salt?

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Any substance that is formed from a metal cation (K^(+)) and an acid anion (Cl^(-) is a (chemical) salt.

Other (chemical) salts are , calcium carbonate(CaCO3) , copper sulphate (CuSO4) ,

There are many more chemical salts.

Casually they are referred to as 'salt'.

NB Table salt used at home is sodium chloride (NaCl) it is a chemical salt, but casually referred to a 'salt';.

What is bromine called?

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Bromine is the official name for BROMINE.

It is an halogen element.

However, it does form bromides, bromates, when combined with other elements.

What is the formula and compound name for P4H10?

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This compound is hypothetical and is not possible it is P4O10

Ammonium oxalate formula?

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(NH4)2 C2O4

However, it is best understood when structurally showen .

(NH4)-O(O=)C-C(=O)O-(NH4)

Is steel an element or a compound?

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It is neither an element not a compound.

Steel is an alloy. An alloy is a mixture of a metal and another element.

In the case of steel, it is principally iron (an element), with about 0.2% to 2,0% carbon ( an element), mixed in.

Other elements can be mixed in , e.g. chromium to form Stainless Steel, or Tungsten to form hard wearing steel.

How many moles of CaCl2 are in 250 ml of CaCl2 solution?

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It depends on the concentration of the solution.

If you know the concentration(molarity) then use the equation.

moles = [conc] x vol(mL) / 1000

NB The '1000' isusedto convert the concentration units of moles per litre (molL^-1) to mL.

Is oxygen a reactant?

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Yes , oxygen is a reactant but with different properties , if oxygen misses you cannot burn fire .

How many atoms are there in a molecule of hydrogen?

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A molecule of hydrogen, also known as molecular hydrogen, is composed of two atoms of hydrogen. This diatomic molecule is represented by the chemical formula H₂, indicating the two hydrogen atoms are bonded together.

How many molecules does alcl3 dissociate into?

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It does NOT form molecules.

When AlCl3 'breakdown ' it form the IONS Al^(3+) & 3 Cl^(-)

AlCl3(s) IS a molecule.

Who are the characters in compound by a SA Bodeen?

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The main characters in "Compound" by S.A. Bodeen are Eli and his family. The story follows Eli as he and his family are forced to live in an underground bunker, known as the compound, after a nuclear attack. The story explores the dynamics and psychological impact this confinement has on the family members.

Is it true that Realism has always been an important element in writing?

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Realism has been an important element in writing, particularly in literature, as it aims to depict reality and the human experience in a truthful and accurate manner. However, not all writing incorporates realism as some genres, such as fantasy or science fiction, rely on elements of imagination and speculation. Ultimately, the importance of realism in writing depends on the specific goals and themes an author wishes to explore.

Why is nitrous oxide dangerous?

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If you take too much nitrous oxide you risk falling unconscious and/or suffocating from the lack of oxygen. People have died this way. Dizziness, which might make you act carelessly or dangerously. Heavy regular use of nitrous oxide can lead to a deficiency of vitamin B12 and to a form of anaemia.

Is chlorine blue?

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Chlorine is a yellow-green gas at room temperature.

Does iron react with potassium hydroxide?

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no but you may find that an irish leprechaun will jump into your window to try and make it react with his pot of gold

Is selenite a element?

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NO!!!!

However, the corresponding element is 'Selenium'.

What are the properties of graphite that can be linked together to form a short story?

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  • Graphite's layered structure: The hexagonal arrangement of carbon atoms in graphite layers allows for easy sliding over one another, making it an excellent lubricant for machines and pencil writing.

  • Electrical conductivity: Graphite's delocalized electrons make it a good conductor of electricity, making it useful in various applications such as batteries and electronics.

  • High melting point: Graphite has a high melting point of about 3,600°C, allowing it to withstand high temperatures and be used in high-temperature applications like crucibles and refractory materials.

What literary element is haste makes waste?

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"Haste makes waste" is an example of a proverb, which is a short, well-known saying that offers a piece of advice or wisdom. This particular proverb suggests that rushing or acting too quickly can lead to mistakes or inefficiency.

What is the common name for dinitrogen monoxide?

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The common name for dinitrogen monoxide is nitrous oxide, often known as laughing gas.

Which is an element in Momaday's writing that helps identify it as Postmodern?

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One element in Momaday's writing that helps identify it as Postmodern is his use of fragmented narrative structures, where he incorporates multiple perspectives and non-linear storytelling techniques. Additionally, his exploration of cultural identity, especially in the context of Native American history and tradition, reflects postmodern themes of deconstruction and reevaluation of historical narratives. His blending of different genres and styles, such as blending poetry with prose, also contributes to the postmodern nature of his writing.

What is the name of CS Forester's 1938 novel?

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The name of CS Forester's 1938 novel is "A Ship of the Line."

Which formal element most directly reflects the contrast of ideas in an Italian sonnet?

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The volta, or the shift in the sonnet's argument or theme at line 9, most directly reflects the contrast of ideas in an Italian sonnet. This turn often introduces a new perspective or resolution that contrasts with the previous lines, emphasizing the poet's skill in juxtaposing contrasting ideas within the form.

What age clientele is Element Clothing geared to?

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Element Clothing typically caters to a wide range of age groups, but it is most popular among teenagers and young adults in their late teens to mid-20s.