How many atoms of carbon (C) are present in the reactants of the following chemical equation?
C7H16+O2
CO2 + H₂O
(1 point)
O 7 atoms
16 atoms
O1 atom
O 23 atoms

Eight isomers are possible for the bond-line structures for constitutional isomers with a molecular formula of c4h11n

n-butylamine

sec-butylamine

isobutylamine

tert-butylamine

N-methyl-n-propylamine

N-methylisopropylamineamine

N, N-diethyl amine

N-ethyl-N,N-dimethylamine

one of two or more compounds, radicals, or ions containing the same number of atoms of the same element but differing in structural arrangement and properties That is, they have exactly the same molecular formula, but the atoms are arranged differently.

n-butane and isobutane are examples of structural isomers, as are ethanol and dimethyl ether. Constitutional isomers can also have different functional groups.

Constitutive isomers are molecules with different connections. It resembles a simple bracelet with different orders of red and green beads. The second type is stereoisomers. Stereoisomers have the same connectivity but differ in the spatial orientation of the parts.

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The number of mole of oxygen needed for the reaction is 0.1 mole

We'll begin by writing the balanced equation for the reaction. This shown below:

S + O₂ --> SO₂

From the balanced equation above,

1 mole of S required 1 mole of O₂

The mole of oxygen needed to react with 0.1 mole of sulphur can be obatined as follow:

From the balanced equation above,

1 mole of S required 1 mole of O₂

Therefore,

0.1 mole of S will also require 0.1 mole of O₂

Thus, 0.1 mole of O₂ is needed for the reaction

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Specifying an algorithmic solution to a problem allows us to take advantage of the speed and power of a computer system to automate the solution.

Algorithmic solutions are those that attempt to tackle a problem in a number of steps. To arrange an array in ascending order, for example, a sequenced order of steps is used, so this is an algorithmic solution.

An algorithm is a method of describing the sequential execution of computer issues. It can be compared to a recipe in which the stages for food preparation are specified. The algorithm includes multiple aspects of a program like input, computations, repetitive structures, variable initialization, and mathematical outputs. It is later transformed into flowcharts and programs.

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Answer:

Chromatography is a method of separating out materials from a mixture. Ink is a mixture of several dyes and therefore we can separate those colors from one another using chromatography. When ink is exposed to certain solvents the colors dissolve and can be seperated out.

Answer:

like a element is like water

Answer:

periodic table

The chemical formula of muscovite is given as (KF)₂(Al₂O₃)₂(SiO₂)(H₂O).

The mineral muscovite is very useful in the formation of rocks. It is composed of  aluminum and potassium in the hydrated form and is part of the mica family. It can be found in  igneous, metamorphic, and sedimentary rocks.

Rocks are massive structures which could be found above or below the earth's surface. They are formed by molten magma or by the deposition of materials in layers overtime. Some types of rocks are formed from changes in existing rocks.

The Muscovite could be used in cosmetics as well as to make a paint to shine The chemical formula of muscovite is given as (KF)₂(Al₂O₃)₂(SiO₂)(H₂O). We can see that it contains the elements aluminum, potassium and silicon.

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6.701×10²¹moles of precipitate of iron hydroxide are formed.

Number of moles can be calculated using molar mass and Avogadro's number. The formula of which is,

number of moles=1/molar mass×Avogadro's constant

In the question given , by carrying out the reaction between iron nitrate and sodium hydroxide a precipitate of iron hydroxide is going to be formed.

The moles of iron hydroxide can be calculated by substituting the values in the formula,

1/89.86×6.022×10²³=6.701×10²¹ moles.

Hence,6.701×10²¹ moles of precipitate is formed.

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Volume under the following condition is 280.47 cm³.

Given,

intial volume is 310cm³

temperature is 242K

final pressure is 840mmHg

pressure at STP is 1atm or 760mmHg

we have to find out volume at final pressure

Use Boyle's law

P1 * V1 = P2 * V2

Put the values from the question

760* 310 = 840 * V2

V2 = 760* 310 / 840

V2 = 280.47 cm³

Therefore, volume at final pressure is 280.47 cm³.

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The values of the Graduations for A , B and C will be  0.2 ml,  2ml and 1ml respectively.

Graduated Cylinder - A popular piece of scientific equipment used to measure the volume of a liquid is a graduated cylinder, sometimes referred to as a measuring cylinder or mixing cylinder. Its form is slender and cylindrical. Each marked line on the graduated cylinder indicates the volume of liquid that has been measured.

The clear graduated cylinder is widely used for volume measurements and is regarded to be more accurate than a beaker since it contains permanently marked incremental graduations.

To calculate the value of graduations-

1. Subtract the two values to get the value between the labeled graduations.

2. Determine how many spaces there are between the two graduations. Keep in mind that volume equals space.

3. Divide the number of gaps by the value between the graduations.

For cylinder  A.

2 ml- 1ml  = 1ml

Number of spaces = 5

∴1/ 5 = 0.2

Graduation = 0.2ml

For cylinder B -

20-10 = 10

number of spaces = 5

∴10/ 5 =2

Graduation = 2ml

For cylinder C-

10-5 = 5

Number of spaces= 5

∴5/5 = 1

Graduation = 1ml

Hence , Graduations for A , B and C will be  0.2 ml,  2ml and 1ml respectively.

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Your question is incomplete. Please find the missing image below.

When sodium oxide is dropped into a buffered solution, the buffer's weak acid component consumes the added hydroxide ion.

A buffer must contain a weak acid and its conjugate base. There are several ways to make a solution containing these two components: buffers can be made from weak acids or bases and their salts.

When the solution contains a buffer, the hydroxide (OH-) ions react with the weak acid in the buffer solution instead of with water, likely to result in water and A- ions.

Thus, the buffer's weak acid absorbs the extra hydroxide ions from the solution.

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Answer:

C. the car is moving slowly

Answer:

Answer:

.

Explanation:

Taking into account the Gay-Lussac's law, the new pressure of the chamber is 569.295 kPa.

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of shocks against the walls increases, that is, the pressure increases.

That is, the gas pressure is directly proportional to its temperature: when there is a constant volume, as the temperature increases, the gas pressure increases, and when the temperature decreases, gas pressure decreases.

Gay-Lussac's law can be expressed mathematically as follows:

P÷T= k

Considering an initial state 1 and a final state 2, it is fulfilled:

P₁÷T₁= P₂÷T₂

In this case, you know:

Replacing in Gay-Lussac's law:

450 kPa÷ 298 K= P₂÷ 377 K

Solving:

(450 kPa÷ 298 K)× 377 K= P₂

569.295 kPa= P₂

Finally, 569.295 kPa will be the new pressure.

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I gotta say it's D cause all of those all react differently towards another chemical.

Mass of CaCl2 = 10 g.

Volume of solution = 1 L.

To determine the solubility, the concentration of CaCl2 solution has to be determined.

The formula for calculating the Molarity (conc. in mol/L) is:

Molarity = Number of Moles of the solute/Volume of solvent in L

The number of moles of solute is determined using the formula:

Number of moles = Mass in g/Molar mass in g/mol = 10g/110.98 g/mol = 0.09 mole.

Now, Molarity = 0.09/1 = 0.09 M

So, the concentration of CaCl2 is 0.09M

CaCl2 dissociates into Ca2+ and 2Cl− ions as shown below.

CaCl2→Ca2+ + 2Cl−

The concentration of Cl− ions in the solution = 2×0.09M =0.18M.

Substitute these values in the expression for the solubility product

Ksp = [Ag+][Cl−] = s×(s+0.18)

Since the value of Ksp is very low, the value of s will be negligible compared to 0.052, and hence,

(s+0.18) ≈0.18

Ksp = s×0.18

1.8×10^−10 =0.052 s

s = 1.8×10^−10/0.18

s = 10 x 10^-10 or 1 x 10^-9M

Therefore, the solubility of AgCl in the given CaCl2 solution is 1x10^-9 M

The amount of moles of a solute that can dissolve in a solvent before it becomes saturated is known as molar solubility. The amount of solute that dissolves in a liter of solution is most frequently expressed as the number of moles. As a result, it is typically expressed as "M" and measured in moles/liter.

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Statement that potassium reaches its equilibrium potential when there are equal concentrations of potassium inside and outside the cell is false.

Equilibrium potential of potassium at which the electrical and concentration forces are balanced for a potassium ion is not when there are equal concentrations of potassium inside and outside the cell.

Equilibrium potential for potassium ion is negative, because there is difference between concentration of ions of potassium inside and outside the cell.

The sodium-potassium pump releases three Na+ ions, while in the same time two K+ ions exit the cell. For this process one molecule of ATP is consumed.

The concentration of sodium is high outside the cell (extracellular fluid) and the concentration of potassium is high inside the cell (cytoplasm).

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The ph of solutions 8 is 4.75 and the PH of solution 9 is 9.25.

The pH of a solution is a measure of hydrogen ion concentration, which in turn is a measure of its acidity. Pure water dissociates slightly into equal concentrations of hydrogen and hydroxyl (OH−) ions.

Now,

CH3COOH + NaOH  ->  CH3COONa + H2O

pH = p Ka + log [CH3COONa] /[снз соон]

4.15 +( log 0.10m x 5 mL/ (0.1 Mx 10 mL) - (0.10 x5))

pH= 4.75

Calculated value is less than experimental value.

For solution 9:

NH4NO3 + NaOH ->  Na No3 + H2O + NH3

pH = P ka + log( [NH3] [NH4+])

= 9.25 + log ((0.10Mx5 mL) (0.1M x 10.0 mL -0.10 mx 5.0ml).

PH = 9.25

Calculated value is less than experimental value.

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This molecule is called tert-butyl alcohol, also known as tert-butanol and 2-methyl-2-propanol (IUPAC nomenclature).

All carbon atoms are [tex]sp^{3}[/tex] hybridized. The oxygen atom has the same hybridization, with two of the orbitals being taken by the nonbonding electron pairs, and two by the C-O and the O-H bond.

Tert-butanol is a commonly used polar organic solvent, with a boiling point of 83 degrees Celsius and a density of 0.775 g/mL. Because it has an unusually high freezing point (26 degrees Celsius), pure tert-butanol is often solid at room temperature.
It is colorless, but has a characteristic camphorous smell, and is very miscible with water (dry tert-butanol is usually obtained through distillation over potassium or sodium).

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The atoms made up in a car are as old as the car.

Cars are made up from metals and elements which are made up of atoms.

Atoms, which are little bits of matter, are what distinguish one chemical element from the others. A negatively charged core nucleus and one or more orbiting electrons make up an atom. The positively charged nucleus houses one or more protons and neutrons, which are relatively heavy particles.

Any material with mass and volume is considered matter because it occupies space. The observable cosmos is made up of matter, which coupled with energy serves as the foundation for all objective occurrences.

Car is consequently matter comprised of atoms.

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The empirical formula of the compound is CH₄N (N-methyl amide).

A sample of 0. 312g produces 0.458 g CO₂ and 0.374g H₂O.

The nitrogen content of a 0.486g sample is converted to 0.226g N₂.

Unknown :

The empirical formula of the compound = ?

Moles of C = 0.458g/(44g/mol) =  0.010409 mol

Mass of C =  0.010409 mol * 12

                  = 0.1249 g

Moles of H =  (2*0.374g)/(44g/mol) =  0.0415 mol

Mass of H = 0.0416g  

Mass of N in sample =  0.312g - (0.1249g + 0.0415g)

                                   = 0.1456g

Moles of N = 0.1456g/ (14g/mol) = 0.0104 mol

Moles of C : H : N = 0.0104 : 0.0415 : 0.0104

                              = 1 : 4 : 1

So, the empirical formula of the compound, N-methyl amide is CH₄N.

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The reaction is single displacement reaction you may have seen bubbles of gas forming during the redox reaction

This bubbles are due to the side reaction between leftover aluminum wire and acid (H⁺) ion formed by the hydrolysis of copper ion in this reaction single displacement reaction are seen here a single displacement reaction or single replacement reaction or exchange of reaction in which element is replaced by another in a compound and in this reaction redox reaction are seen means oxidation and reduction takes place simultaneously called redox an balanced net ionic reaction that occurs between aluminum metal and acid ions are

Al⁺ + H⁻ in that Al is oxidized and H ion is reduced element in that reaction

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Given,

Mass required to trigger a mouse trap =157grams

Mass of mouse = 4 ounces (oz)

we need to find the largest mass of cheese a mouse should carry to not set off the trap-

Firstly, we need to convert oz into grams

⇒ 4 x 28.3 = 113.2 grams

∴Mass of cheese in grams = 113.2

For the mouse to not set off the trap, mass of mouse + mass of cheese should be less than 157 grams.

⇒113.2 + mass of cheese < 157

⇒ Mass of cheese < 157 - 113.2

Mass of cheese < 43.8 gm

Hence, the mouse should carry a cheese of 43.8 grams to not set off the trap.

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The mouse should carry a 43.8 grams block of cheese in order to avoid setting off.

Given,

A mouse trap requires 157 grams of mass to set off.

Mouse weight is 4 ounces (oz)

To avoid setting off the trap, we need to determine how much cheese a mouse should be able to carry.

First, we must change an ounce into grams.

4 x 28.3 equals 113.2 grams.

The mass of cheese is 113.2 grams.

Mass of mouse plus mass of cheese must be less than 157 grams for the mouse to avoid setting off the trap.

113.2 +  cheese mass equals 157.

157 cheese mass - 113.2= 43.8 g of cheese total.

Hence, In order to avoid setting off the trap, the mouse should carry a 43.8-gram block of cheese.

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Answer:

1. 62 grams 2. Compounds

Explanation:

assuming you want the molar mass, the answer to the 1st question is 62 grams.

The reactants are compounds due to there being 2 or more elements together

Answer:

Capital Formation:

Natural Resources:

Marketable Surplus of Agriculture

Conditions in Foreign Trade:

Explanation:

RbOH, HBr cannot be mixed together to form a buffer solution.

Hence,  RbOH, HBr cannot be mixed together to form a buffer solution.

option C is correct.

The correct question is,

Which one of the following pairs cannot be mixed together to form a buffer solution?

A) NH3, NH4CI

B) NaC2H3O2, HCl (C2H3O-2)

C) RbOH, HBr

D) KOH, HF

E) H3PO4, KH2PO4

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