A student needs to use sodium nitride in an experiment and finds a chemical with the formula NaNO3 . Is this the correct compound? Why or why not?

A. Yes, NaNO3 is the formula for sodium nitride.
B. No, NaN is the formula for sodium nitride; NaNO3 is the formula for sodium nitrate.
C. No, NaN is the formula for sodium nitride; NaNO3 is the formula sodium nitrite.
D. No, Na3N is the formula for sodium nitride; NaNO3 is the formula for sodium nitrat

Answer:

Silver nitrate

Explanation:

The orbitals are accountable to the law of octaves are: 1s 2s 2p 2p 3s 3p 3d  4s 4p 4d 5s 5p 4f 5d 6s 6p 5f 6d 7s .

The law of octaves introduced by the English chemist named J.A.R Newlands. According to it if we arranged the chemical elements in the periodic table according to their atomic mass then those that have the similar physical and the chemical properties will occur after the each interval of the seven elements.

The last element that is known was the thorium with the atomic mass of 232. Newlands' law of octave was firstly applicable only up to the calcium with atomic mass of 40. Now there are more ninety elements known up to the thorium.

To learn more about law of octaves here

https://brainly.com/question/21672702

#SPJ4

After the complete neutralization reaction occurs, excess hydroxide ion is left unreacted the hydroxide ion of the resulting solution, [OH-] is 0.02 M.

The hydroxide ion concentration is the amount in moles of hydroxide ion in a solution.

The hydroxide ion concentration is written as [OH-].

The equation of the reaction is given below:

1 mole of HBr reacts with 1 mole of KOH

Moles of HBr = 40 mL × 0.1 M = 4 mm moles

Moles of KOH = 60 mL × 0.1 M = 6 m moles

Moles of [OH-] = 6 - 4 = 2 m moles

Volume of solution = 100 mL

\([OH-] = \dfrac{2m\; moles}{100\; mL} = 0.02 M\)

Thus, the concentration of the hydroxide ion, [OH-] is 0.02 M.

Learn more about hydroxide ion

https://brainly.com/question/25883474

#SPJ4

The indicated covalent bond is a sigma(single) bond which is a strong bond and cannot easily break.

A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted to two nuclei. A covalent bond is formed when the electronegativity difference between two atoms is too small for electron transfer to form an ion.

Following are the types of covalent bonds:

CH₃NH₂ is classified as a covalent compound with the IUPAC name methylamine. Each molecule contains one carbon atom, five hydrogen atoms, and one nitrogen atom, all held together by a single covalent bond.

To know more about covalent bonds visit:

https://brainly.com/question/19382448

#SPJ13

\({{\boxed{\mathcal{\red{It \: will \: be \: in \: your\: \: text \: book \: see}}}}}\)

Answer:

8.15103

g

x

Explanation:

dust and gases in space drawn together by gravity; galaxies began to form; stars were born in galaxies; planetary systems (like the solar system) formed around some stars

The substrate concentration required for a reaction rate V0 of 75 nmol/s is 25 μM, which is option E. An enzyme kinetics assay reveals that Vmax = 100 nmol/s and Km = 10 μM. For this assay, the substrate concentration required for a reaction rate V0 of 75 nmol/s is 30 μM.

An enzyme kinetics assay reveals that Vmax = 100 nmol/s and Km = 10 μM. For this assay, the substrate concentration required for a reaction rate V0 of 75 nmol/s is 30 μM. Enzymes are biomolecules that catalyze biochemical reactions, increasing reaction rates while maintaining biological specificity. Enzyme kinetics are the study of these chemical reactions. The Michaelis-Menten equation is widely used in enzyme kinetics to calculate the reaction rate (V0) and the amount of substrate consumed in a reaction. Vmax and Km are two parameters that can be determined using Michaelis-Menten kinetics.

Vmax is the maximal reaction rate reached when all enzymes are saturated with substrate molecules, while Km is the Michaelis constant. It is defined as the concentration of substrate when the reaction rate is half of Vmax. Vmax and Km are constants that depend on the enzyme and the substrate concentration.An enzyme kinetics assay revealed that Vmax = 100 nmol/s and Km = 10 μM. Now, let us calculate the substrate concentration required for a reaction rate V0 of 75 nmol/s. Michaelis-Menten equation provides us the answer, which is given as follows:

V0 = Vmax * [S] / (Km + [S])

Where [S] is the substrate concentration.

Substituting the given values, we get;

75 = 100 * [S] / (10 + [S])

Multiplying both sides by (10 + [S]) and simplifying, we get;

750 + 75[S] = 100[S]

30[S] = 750[S] = 25 μM

Therefore, the substrate concentration required for a reaction rate V0 of 75 nmol/s is 25 μM, which is option E.  

To know more about reaction rate visit:

https://brainly.com/question/28566775

#SPJ11

Answer:

Lawrencium (Lr)

Explanation:

The element with the given electron configuration is Lawrencium (Lr), which has an atomic number of 103.

3.08 g of NaCl should be added to 0.35 L of a 0.15 M solution of AgNO3 so that it reacts completely with the silver to form AgCl(s).

Solution is a process or action that is used to resolve a problem or issue. Solutions can be found through brainstorming, analysis, research, trial and error, and experimentation.

To calculate how much NaCl should be added to a 0.35 L solution of 0.15 M AgNO3 to completely react with the silver to form AgCl(s), we need to use the stoichiometric ratio of the reactants. The reaction of AgNO3 and NaCl is:
AgNO3 + NaCl → AgCl(s) + NaNO3
The ratio of AgNO3 to NaCl is 1:1, so we need to add an equal amount of moles of NaCl as AgNO3.
To calculate the moles of AgNO3, we need to use the following equation:
Moles = (Concentration)(Volume)
Moles of AgNO3 = (0.15 M)(0.35 L) = 0.0525 moles
Since we need an equal amount of moles of NaCl, we can calculate the amount of NaCl needed as:
NaCl = (0.0525 moles)(58.44 g/mol) = 3.08 g
Therefore, 3.08 g of NaCl should be added to 0.35 L of a 0.15 M solution of AgNO3 so that it reacts completely with the silver to form AgCl(s).

To learn more about solution
https://brainly.com/question/28564792
#SPJ1

Answer:

8.757 x 10^23 molecules

Explanation:

Use Avogadro's number of  6.022 × 10 ^23  molecules per mole.

64g CO2/44.01 g/mol = 1.454 moles of CO2

1.454 x  6.022 × 10 ^23 =

8.757 x 10^23 molecules

Answer:

CH

Explanation:

We have to obtain the mass of carbon and hydrogen in CO2 and H2O respectively.

For carbon in CO2;

0.845 * 12/44 = 0.23 g

For hydrogen in H20;

0.173 * 2/18 = 0.019 g

We convert the masses to moles of carbon and hydrogen

For carbon - 0.23/ 12 = 0.019 moles

For hydrogen - 0.019/1 = 0.019 moles

Dividing by 0.019 moles for carbon and hydrogen we have the emperical formula of the compound as CH

Answer: During succession, new species move into an area and colonize it.

Explanation: Ecological succession refers to the process of change in the composition and structure of an ecosystem over time. It occurs due to the interactions between the biotic (living) and abiotic (non-living) components of an environment. As succession progresses, new species gradually establish and thrive in the area, leading to a change in the species composition. This process can occur over a long period of time, ranging from decades to centuries, depending on various factors such as environmental conditions and the specific type of succession.

Answer:

Explanation:

The two electrons in the outer orbit, together with the other negatively charged electrons, repel each other and that make the diameter of the O^2- ion larger.

Answer:

D

Explain:

Biology because normally everyone just studies under it so that is my answer for you i hope its right.

Your limiting reagent will be copper (II) chloride. The mole ratio is the most crucial tool you'll have to tackle this problem, or any other stoichiometry problem, for that matter.

Keep in mind that in order to make 3 moles of copper from 3 moles of copper (II) chloride, you need 2 moles of aluminum. Unbalanced reaction: Al(s)+HCl(aq) AlCl3(aq)+H2(g). Cl. Balance On the product side there are three Cl atoms and on the reactant side there is one. There is only one hydrogen atom on the reactant side and two on the product side of the reaction Mg + HCl MgCl 2 + H 2. The equation is therefore unbalanced.

Learn more about reagent here-

https://brainly.com/question/28196410

#SPJ4

Your experiment would not work because Taq polymerase needs a tiny bit of DNA to add bases to. Due to the lack of an enzyme that could add new nucleotide bases, your process would not succeed.

The primers are absolutely necessary for a PCR reaction to work. The RNA primers must anneal before the heat-resistant DNA polymerases may start replicating DNA. The DNA polymerase cannot work without the primers, and as a result, no product will be produced.

DNA polymerase requires a primer on which it may add the first nucleotide since it can only add a nucleotide onto an already-existing 3'-OH group. This prerequisite allows the researcher to identify a particular area of the template sequence that they want to amplify.

To learn more about PCR reaction refer to

https://brainly.com/question/17555761

#SPJ4

The mass of iron which is needed to react with 16.0 grams of sulphur is 28 grams

How to balanced the given equation?

The balanced chemical equation for the reaction between iron and sulfur  to form iron sulfide is:

8 Fe + S₈ → 8 FeS

From the balanced chemical equation, we can see that 8 moles of Fe react with 1 mole of S₈ to form 8 moles of FeS.

To determine the mass of iron required to react with 16 grams of sulfur, we first need to calculate the number of moles of sulfur present in 16 grams of S.

The molar mass of S is 32.06 g/mol (the atomic mass of S is 32.06). Therefore, the number of moles of S in 16 grams is:

n(S) = m(S) / M(S) = 16 g / 32.06 g/mol = 0.499 mol

The molar mass of 8 moles of iron will be 448 grams

∴56 × 8 = 448 grams

Similarly the molar mass of S₈ will be 256 grams

∴32 × 8 = 256 grams

Therefore,

256gram of Sulphur needs 448 gram of Iron

So 16 gram of sulphur will  ?

cross multiply

The mass of Iron needed =( 16 × 448) ÷256

= 7168 ÷ 256

Hence by solving the above equation we can find the mass of iron which is 28 grams

To know more about chemical reaction visit:- https://brainly.com/question/11231920

#SPJ1

Answer:  A tank that contains moist air at 3 atm is located in moist air that is at 1 atm. The driving force for moisture transfer is the vapor pressure difference, and thus it is possible for the water vapor to flow into the tank from surroundings if the vapor pressure in the surroundings is greater than the vapor pressure in the tank.

Explanation:

The water vapor can flow from into the the tank from surroundings due to the process of diffusion.

Diffusion is defined as the process of movement of molecules which takes place under concentration gradient. It helps in movement of substances in and out from the cell.The molecules move from lower concentration region to a higher concentration region till the concentration becomes equal.

There are 2 main types of diffusion:

1) simple diffusion-process in which substances move through a semi-permeable membrane without the aid of transport proteins.

2) facilitated diffusion- It is a passive movement of molecules across cell membrane from higher concentration region to lower concentration.

There are 2 types of facilitated diffusion one is osmosis and dialysis.

Learn more about diffusion,here:

https://brainly.com/question/14852229

#SPJ2

Answer:

Explanation:

The reasons that cities boomed during the Middle Ages are more employment opportunities, increased trade, and growing interest in culture and art.

Answer:

Explanation:

By the High Middle Ages, towns were growing again. One reason for their growth was improvements in agriculture. Farmers were clearing forests and adopting better farming methods. As a result, they had a surplus of crops to sell in town markets.

Also, as the amount of trade increased between Europe and other continents. Trade began to grow in Europe after the Crusades. Most of this trade was controlled by merchants from Italy and Northern Europe.

All of these types of reactions can be seen as reduction-oxidation reactions except for combination reactions. A chemical reaction occurs when two or more reactants are transformed into one or more products. Combination reactions are one such kind of chemical reaction that may be observed in various situations.

It is characterized by the fact that two or more substances combine to create a new substance.

Types of reactions: There are five major sorts of chemical reactions that scientists have discovered through time. These are :Combination reactions, Decomposition reactions, Single replacement reactions, Double replacement reactions, Redox reactions (reduction-oxidation reactions).

Combination reactions: These reactions are the opposite of decomposition reactions in which one substance is transformed into multiple compounds. When two or more elements or compounds react to create a single product, this kind of reaction occurs.

In general, two or more reactants combine to form a single product in combination reactions. Because the product is formed by the combination of two or more reactants, this reaction is also known as a synthesis reaction. A + B → AB For example:2Na + Cl2 → 2NaClDecomposition reactions: These are the reactions in which a single compound breaks down into two or more elements or compounds. This kind of reaction is also known as a breakdown reaction or a decomposition reaction. AB → A + B .

For example:2H2O → 2H2 + O2Single replacement reactions: These are the reactions in which a single element or ion is substituted for another element or ion in a compound. These reactions are also referred to as substitution reactions. A + BC → AC + B For example:CuSO4 + Zn → ZnSO4 + Cu Double replacement reactions: These reactions occur when two compounds exchange ions.

Double replacement reactions are also known as metathesis reactions. AB + CD → AD + CBCO2 + Ca(OH)2 → CaCO3 + H2ORedox reactions : Redox reactions, or reduction-oxidation reactions, are chemical reactions in which the oxidation states of atoms in molecules change. Oxidation and reduction occur together in redox reactions. A + B → AB Combustion reactions are an example of redox reactions.

For example:2Mg + O2 → 2MgOConclusion:In conclusion, Combination reactions are the type of reactions that cannot be seen as reduction-oxidation reactions. The reactants in a combination reaction combine to create a new substance, whereas in redox reactions, the oxidation states of the reactants change.

To know more about Reactions visit :

https://brainly.com/question/16737295

#SPJ11

Answer:

mixture of nitrogen B

Explanation:

ok

Answer:

Molecule of diatomic nitrogen

Explanation:

di means 2.

Since, 2 Nitrogen atoms are there, they share their electrons and form a molecule of diatomic nitrogen.

Answer:

1

Explanation:

because you are changing the chemical makeup of the water by pulling out the two chemicals

It represents an amine group.

Answer:ABC4

Explanation:

The charge of a atom is not visible in a formula.

The conversion factor from electrino to coulombs is 1.60×10−19.

The term charge refers to a particle that is positively or negatively charged. The electron is a particle that is negatively charged. One of the popular units that could be used when dealing with electrons is the electrinos.

We know that;

1 electrino = 1.60×10−19 C

It then follows that the conversion factor from electrino to coulombs is 1.60×10−19.

Learn more about conversion factor:https://brainly.com/question/28366871

#SPJ1