The chemical equation is balanced correctly.
Which compound is represented by X?
C6H1₂O6(aq)-enzyme2X +2CO₂(g)

Answer:

In a chemical reaction, only atoms are present in the reactant and can end up with molecules. No new atoms are created and no more atoms are destroyed. In a chemical reaction, reactants contact with each other and the bond between atoms in the reactant is broken and atoms rearrange and form new bonds to make the product.

Explanation:

The total mass of sodium chloride is 58.44 g/mol.

The mass of sodium is 22.99 g/mol.

To find the percent sodium in sodium chloride can be found by dividing the amounts.

Therefore, the percent sodium is 39%.

The number of moles of oxygen required to completely react with 54 g of aluminum is 1.5 moles.

moles = reacting mass/molar mass

moles = 54/27

moles = 2 moles

From the given reaction of oxygen and aluminum;

4Al +  30₂   →   2Al₂O₃

4 moles of Al ----------> 3 moles of oxygen

2 moles of AL --------> ? moles of oxygen

= (2 x 3)/4

=  1.5 moles

Thus, the number of moles of oxygen required to completely react with 54 g of aluminum is 1.5 moles.

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C₂H₂ has  the greatest percent by mass of carbon (92.3%)

Given

Hydrocarbons

Required

The greatest percent by mass of Carbon

Solution

Proust states the Comparative Law that compounds are formed from elements with the same Mass Comparison so that compounds have a constant composition of elements

% A in AxBy = (x.Ar A/MW AxBy) x 100%

C₃H₄ = 3.12/40 x 100%=90%

CH₄ = 12/16 x 100% = 75%

C₂H₄=2.12/28 x 100% = 85.7%

C₂H₂=2.12/26 x 100% = 92.3%

Answer:

metallic bond but not completely sure

Explanation:

Answer:

a) The predominant Brownstead-Lowry acid- base is perchloric acid

b) A conjugate acid base pair is HClO4 and ClO4^-

c) forward reaction is favored and equilibrium position lies towards the far right

Explanation:

The molecular equation is;

HClO4(aq) + NaH2PO4(aq) -----> H3PO4(aq) + NaClO4(aq)

The net ionic equation of the reaction is;

H^+(aq) + H2PO4^-(aq) ----> H3PO4(aq)

The predominant Brownstead-Lowry acid- base is perchloric acid .

A conjugate acid base pair is HClO4 and ClO4^-

Since the both species; perchloric acid and sodium dihydrogen phosphate are both highly soluble in water yielding ions and also dissociate to a large extent in solution, the forward reaction is favoured leading to the formation of phosphoric acid. Remember that phosphoric acid does not easily dissociate in solution hence the forward reaction is faster than the reverse reaction and the equilibrium position lies towards the far right.

The approximate distance from the far edge of one lobe to the far edge of the other is 2,100,000 light-years.

This distance measures the outer space between the edges of the two lobes in a given time.

The approximate distance from the far edge of one lobe to the far edge of the other in a solar system is about 2,100,000 light-years.

Thus, the approximate distance from the far edge of one lobe to the far edge of the other is 2,100,000 light-years.

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Answer: The greatest use of groundwater is for agriculture.

Explanation: The greatest use of groundwater is for agriculture, which accounts for about 70% of all groundwater use globally. Agriculture relies on groundwater to irrigate crops and to provide water for livestock. Groundwater is also used for drinking, industry, and recreation, but these uses are comparatively smaller than its use in agriculture.

Answer:

[A] Plant shoots are positively phototropic and negatively gravitropic. [B] Plant shoots are negatively phototropic and positively gravitropic. [C] Plant shoots are negatively hydrotropic and positively gravitropic. [D] Plant shoots do not display any major tropisms.

Answer:-Gravitropism. It is a type of tropism where plants show some growth in response to gravity. ...

Chemotropism. There are few chemical substances, which are actively responsible for bringing a curvature movement in plant organs. ...

Thigmotropism. ...

Hydrotropism. ...

Thermotropism.                                                                                                                     The below mentioned article will highlight the six types of tropic movements in plants.

The six types are: (1) Thigmotropism (Haptotropism) (2) Phototropism (3) Geotropism (4) Thermotropism (5) Chemotropism and (6) Hydrotropism.                A tropism is a growth movement whose direction is determined by the direction from which the stimulus strikes the plant. There are two forms: Positive = the plant, or a part of it, grows in the direction from which the stimulus originates. and Negative = growth away from the stimulus.                         tropism is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the stimulus (as opposed to nastic movements which are non-directional responses).

This problem is providing information about the volume and concentration of HCl as 505 mL and 0.160 M respectively, and it is asking for the water that have to be added to prepare a 0.100-M solution.

In such a way, we work over the assumption of constant moles in dilution processes, so that we are able to write:

\(M_1V_1=M_2V_2\)

Which relates de volume and concentration at the beginning and end of the experiment. This means we can solve for the resulting volume of the solution as a first calculation:

\(V_2=\frac{M_1V_1}{M_2}\\\\V_2=\frac{0.160M*505mL}{0.100M}=808mL\)

Hence, the following amount of water must be added:

\(V_w=808mL-505mL=303mL\)

Learn more:

Answer:

2.13 %

Explanation:

.024 Liter    out of ( .024 + 1.1 liter) = 2.13 %

The number of bonds for an atom can change depending on the chemical reaction it undergoes.

Atoms can form chemical bonds with other atoms to achieve a more stable state. The number of bonds an atom can form is determined by the number of valence electrons it has. Valence electrons are the outermost electrons that are involved in bonding. When an atom undergoes a chemical reaction, it can either gain or lose electrons, or share electrons with other atoms to form new bonds. As a result, the number of bonds for that atom can change.

For example, when a hydrogen atom (H) and a chlorine atom (Cl) react, they form a hydrogen chloride (HCl) molecule. In this reaction, the hydrogen atom shares one of its electrons with the chlorine atom, forming a covalent bond. As a result, the hydrogen atom goes from having one bond to two bonds, while the chlorine atom goes from having one bond to three bonds.

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d) 22.1 moles of sulfur

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

707 g S (Sulfur)

Step 2: Identify Conversions

Molar Mass of S - 32.07 g/mol

Step 3: Convert

Step 4: Round

Our closest answer is d) 22.1 moles of sulfur

This is due to dividing different rounded values.

Answer:

\(\boxed {\boxed {\sf D. \ 22.1 \ moles \ of \ sulfur}}\)

Explanation:

To convert from moles to grams, we must use the molar mass. This can be found on the Periodic Table.

We are given a sample of sulfur. Look for the symbol S on the table.

This tells us the mass of 1 mole of sulfur. Use this molar mass as a ratio.

\(\frac{32.07 \ g \ S}{1 \ mol \ S }\)

Multiply by the given number of grams (707).

\(707 \ g \ S *\frac{32.07 \ g \ S}{1 \ mol \ S }\)

Flip the fraction so the grams of sulfur will cancel out.

\(707 \ g \ S *\frac{ 1 \ mol \ S }{32.07 \ g \ S}\)

\(707 *\frac{ 1 \ mol \ S }{32.07 }\)

\(\frac{ 707 \ mol \ S }{32.07 }\)

\(22.0455254 \ mol \ S\)

The number we caluclated is the closest to answer choice D: 22.1 moles of sulfur

Answer:

Colony

Explanation:

Answer: Yes, light can bend around corners. ... The ability of light to bend around corners is also known as "diffraction". There are two mechanisms that cause light to bend around corners. Light waves indeed bend around corners because of diffraction, as shown in this illustration.

Explanation:

Answer:3.381 X 10^(-11)

Explanation:

The formula for buoyant force is F = -Volume*density*gravitational acceleration. Convert volume and density to SI units and then apply them in the formula where gravitational acceleration is 9.8m/s^2. Done

Answer:

The magnetic field of an atom, say H (one electron revolving around a proton) is composed of two separate contributions: an orbital magnetic moment and a spin magnetic moment. We get magnetic moments because of electromagnetic induction associated with each type of electron motion. The electron revolving around the proton with a certain angular momentum is related to the associated orbital magnetic moment (and, yes, we model it as a wire loop with current expressed in terms of the orbital velocity). This can be calculated using elementary mechanics. The spin magnetic moment is a little trickier because it is caused by the intrinsic spin of the electron which is a quantum phenomenon; therefore, this spin magnetic moment can only be calculated using quantum mechanics. In the end, we get a certain net magnetic moment associated with this motion of the electron in an atom. It is important to notice that this atom acts as a magnetic dipole (remember, as of yet, magnetic monopoles don't exist!).

If we take a bulk magnet like you might have on your fridge, it would be composed of atoms. Each atom operates as a magnetic dipole, but due to internal atomic structures, the atoms actually align themselves into separate magnetic domains, each with a net magnetic moment (caused my individually adding up those atomic dipole moments). In a common magnet (ferromagnet), these domains all point the same direction and stay that way, creating a permanent bulk magnetic dipole.

So in a way, there is no difference between the magnetic field of an atom and that of a magnet because one is simply a sum of the other, making both magnetic dipoles. Of course, here we see that there's nothing that fundamental about the magnetic force. In reality, the magnetic force is a relativistic effect caused by the movement of a charged particle, making electricity (i.e. charge) the underlying property at work here. Electromagnetic induction is really a shortcut to understand the magnetic force without worrying about relativistic mechanics. If we were to discover magnetic monopoles (i.e. "magnetic" charge), this would re-write a lot that we know about electromagnetism because we couldn't label all magnetic forces as by-products of moving electric charge

Answer:

A. 1.73 m = 172 cm

B. 7,651.27 m = 7.65127 Km

Answer:

The eccentricity of the ellipse is 0.252.

Explanation:

The eccentricity of an ellipse (\(c\)), dimensionless, can be determined by means of the following expression:

\(e = \frac{\bar c}{\bar a}\) (1)

Where:

\(\bar c\) - Distance between the foci, dimensionless.

\(\bar a\) - Length of the major axis, dimensionless.

If we know that \(\bar c = 5.2\) and \(\bar a = 20.6\), then the eccentricity of the ellipse is:

\(e = \frac{5.2}{20.6}\)

\(e = 0.252\)

The eccentricity of the ellipse is 0.252.

Answer:

I think it's atomic number?

Explanation:

Really sorry if that's wrong

When the element comes near an atom having seven valence electrons, no reaction will occur.

The name of the element is Neon.

The electron configuration of elements shows how the total number of electrons present in the atoms of the elements are arranged in the orbitals around the nucleus.

In other words, the electron configuration of elements indicates the total number of electrons on its neutral atom, and hence the atomic number of elements.

In this case, the electron configuration is \(1s^2 2s^2 2p^6\). The total number of electrons is 10. Hence, the atomic number of the element is 10. The element with atomic number 10 is Neon (Ne).

Neon represents one of the inert elements on the periodic table. They possess octet electron configuration and as such, are not reactive ordinarily. Thus, if an atom of neon comes near an atom with seven valence electrons, no reaction will occur.

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Answer:

d. Heat is released from the reaction

Explanation:

A negative enthalpy change indicates that it is an exothermic reaction. Exothermic reactions release heat.

Heat is released from the reaction and a negative enthalpy change indicates that it is an exothermic reaction. Exothermic reactions release heat.

When energy is released as heat or light, the reaction is said to be exothermic. An exothermic reaction releases energy into the environment as opposed to an endothermic process, which absorbs energy from its surroundings.

Every cell undergoes this necessary exothermic process, which gives our cells the energy they need to continue carrying out all of the fundamental bodily tasks. Our body's sugar molecules break down into carbon dioxide and water molecules, as well as releasing energy.

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Answer

b. Oil, water, chloroform.

Explanation

Between water, chloroform, and oil, chloroform is the most dense substance (1.5 g/cm3), followed by water which has a density of 1.0 g/cm3. The least dense substance is oil with density of 0.9 g/cm3. Therefore, the oil will be at the top, followed by water, then chloroform will be at the bottom.

The fluids layered from top to bottom are oil, water and chloroform. Therefore, the correct option is option B.

A fluid is defined as a substance that has the ability to flow and conform to its surroundings. They can be found in both liquids and gases, among other forms. Liquids, like water, have a specified volume but no clear shape, whereas gases, like the air, have neither a specific volume nor shape. We need fluids to survive every day. Since water makes up the majority of the fluid in our bodies, they are essential for our survival. Fluids are also essential in many industrial processes, such as manufacturing, energy production, and transportation.

Therefore, the correct option is option B.

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Answer:

A. See-Saw

Explanation:

A see-saw is not an inclined plane but it is a lever.

A screw, ramp and a slide are all inclined planes

Simple machines help to make doing work easier. They simply help to amplify effort.

There are different types of simple machines;

An inclined plane is a simple machine made up of a plane fixed at one end and then tilted at the other.

Answer:

42 L

Explanation:

de los parámetros en la pregunta;

V1 = 358L

T1 = 152 ° C + 273 = 425 K

P1 = 470 mmHg × 1 atm / 760 mmHg = 0.6atm

V2 =?

P2 = 6 atmósferas

T2 = 500 K

P1V1 / T1 = P2V2 / T2

P1V1T2 = P2V2T1

V2 = P1V1T2 / P2T1

V2 = 0,6 × 358 × 500/6 × 425

V2 = 107400/2550

V2 = 42 L

Combustion is the process in which CO₂ is react with reactant. Heat of combustion of ethane is 1560 kilo joule per mole.

Combustion is the process in which oxygen is react to form heat or energy. There are three types of combustion as follows

spontaneous combustion

rapid combustion

explosive combustion

Combustion is a chemical reaction between substances, mostly including oxygen and usually followed by the generation of heat and light in the form of flame.

Combustion is the other word for burning. In a combustion reaction, a fuel is heated and it reacts with oxygen and their is energy released.. The fire triangle require the three things for combustion - a fuel, heat and oxygen.

Thus, combustion of ethane gives 1560 kilo per joule energy.

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The molecules in a complex ion that bind to the central atom are called ligands. These ligands provide both electrons in the bond, which is called a coordinate covalent bond.

The bond between the central metal ion and the ligands in a complex ion is called a coordinate covalent bond or a dative bond. In this type of bond, both electrons in the bond are donated by one of the atoms, typically the ligand, to form a shared electron pair with the central metal ion. This shared electron pair is used to create the bond between the two atoms, and the resulting compound is a coordination complex or a coordination compound. The number of coordinate covalent bonds formed by the ligands with the central metal ion is known as the coordination number of the complex ion.

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Answer:

10 moles of O2

Explanation:

Balanced Equation:

CH4 + 2O2=CO2+2H2O

Now,

According to Stoichiometry,

In the reaction,

           1 mole CO2 is produced by 2 moles of O2

∴5 moles of CO2 is produced by (2 X 5) moles of O2

                                                       = 10 moles of O2

Therefore, to produce 5 moles of CO2, 10 moles of Oxygen is needed.