HELOOPP !!!!!! Which chemical equation models a synthesis reaction?

Answer:

C is the correct answer

Explanation:

as temperature increases the pressure also increases

Answer:

C6H6

Explanation:

The molecular formula of a substance can be determined by using the expression:

(CH)n = 78.11g/mol

Where;

C = 12, H = 1

(12 + 1)n = 78.11

13n = 78.11

n = 78.11 ÷ 13

n = 6.008

n = 6

Hence, the molecular formula is as follows:

(CH)6

Molecular formula = C6H6

Answer:

C-14 have 8 neutrons in the nucleus.

Carbon atoms with 8 neutrons have an atomic mass of 14 (6 protons + 8 neutrons = 14), so this isotope of carbon is named carbon-14.

hope it helps :)

Explanation:

Answer:

its d

Explanation:

edge 21

Answer:

Have a nucleus

Explanation:

Pls check..

Answer:

A. weak acid and its conjugate base

Explanation:

A buffer solution can be made with a weak acid and conjugate base or a weak base and conjugate acid.

This may help you:

https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Acids_and_Bases/Buffers/Introduction_to_Buffers

Answer:

the correct answer is option A. decrease

Answer:

Explanation:

Determine the balanced chemical equation for the chemical reaction.

Convert all given information into moles (most likely, through the use of molar mass as a conversion factor).

Calculate the mole ratio from the given information.

I don’t see a list of differing situations, but I can explain what happens:

Edit (to be more specific):

When you release a toy car on a ramp; the potential energy is at its highest point (with little kinetic energy). As the car accelerates downwards, kinetic energy increases. At the bottom of the ramp, there is minimum potential energy, though maximum kinetic energy.

Answer:

the answer is D =decreasing the temperature ️️️

Answer:

5.85 moles of carbon dioxide are created.

Explanation:

The balanced reaction is:

CaCO₃ → CaO + CO₂

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Then you can apply the following rule of three: if by stoichiometry 1 mole of CaCO₃ produces 1 mole of CO₂, 5.85 moles of CaCO₃ will produce how many moles of CO₂?

[tex]moles of CO_{2}=\frac{5.85 moles of CaCO_{3} *1mole of CO_{2} }{1 mole of CaCO_{3}}[/tex]

moles of CO₂= 5.85

5.85 moles of carbon dioxide are created.

Answer:

Falso.

Explanation:

El modelo cuántico (no relativista) de Schrodinger, piensa a los electrones como ondas estacionarias, tal que la amplitud de dichas ondas decae muy rápidamente cuando se "alejaban" del radio atómico. (Es decir, habia poca probabilidad de que los electrones escaparan del radio atomico, y era por ello que se quedaban orbitando cerca del nucleo). Es decir, podríamos pensar en esto como una "nube de probabilidades" más que una nube electronica

La idea de nube electrónica realmente viene de modelos previos, como el de Rutherford o el de Bhor, los cuales eran modelos clásicos.

option c is the correct answer

because the gas there will be evolved and caused the equilibrium to shift to right side

Answer:

The formula of acceleration is final velocity-initial velocity÷time taken

Explanation:

v-u/t

Answer:

acceleration = (vFinal − vInitial)/ (tFinal − tInitial) Where v stands for velocity and t stands for time.

Answer:

0.172 M

Explanation:

Answer:

0.076 atm

Explanation:

Using the combined gas law formula;

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (atm)

P2 = final pressure (atm)

T1 = initial temperature (K)

T2 = final temperature (K)

V1 = initial volume (L)

V2 = final volume (L)

According to the information provided in this question;

P2 = ?

P1 = 0.250 atm

V2 = 496 L

V1 = 300 L

T2 = 200K

T1 = 400K

Using P1V1/T1 = P2V2/T2

0.250 × 300/400 = P2 × 496/200

75/400 = 496 P2/200

0.1875 = 2.48P2

P2 = 0.1875 ÷ 2.48

P2 = 0.076 atm

Answer:

H30+ First H20 Second N03 Third HNO3 Fourth

Explanation:

Explanation:

when Magnesium is reacted with Aluminum oxide, Aluminum being a less reactive metal than magnesium, is replaced by magnesium

Al2O3 + 3Mg - 3MgO + 2Al

hence reaction takes place

Explanation:

she could waited for the saturated vapour pressure to equal the prevailing atmospheric pressure

ergo boiling to take place seeing as she had gotten the first indication that boiling had started

Answer:

72.58 g/mol

Explanation:

mark me brainless if I am ✅

The relationship between the rate of diffusion and the molar mass is given by Graham's law.  A gas diffusing 1/6 times faster than hydrogen will have a molar mass of 72.58 g/mol. Thus, option d is correct.

Graham's law states the inverse relationship between the rate of diffusion and the square root of the molar mass of the gas. It is given as,

Rate = 1 ÷ √M

The molar mass of the gas that diffuses 1/6 times faster than hydrogen is calculated as,

R₁ ÷ R₂ = √ (M₂ ÷ M₁)

Here,

The molar mass of hydrogen = M₁

The molar mass of unknown gas = M₂

Rate of diffusion of hydrogen gas = R₁

Rate of diffusion of unknown gas = R₂ = 1 / 6 R₁

Substituting values:

R₁ ÷ 1/6 R₁ = √M₂ ÷ 2

6 × 1.414

= 8.485

= 84.85 g/mol ≈ 72.58 g/mol

Therefore, option d. 72.58 g/mol is the molar mass of unkown gas.

Learn more about Graham's law here:

https://brainly.com/question/19589867

#SPJ5

Answer: Initial pH is 13.243

12.83

1.3

40ml

7

Explanation:

Just finished the test.

Answer:

V¹N²= V²N²

here V¹= ?

N¹= 6.00

V²= 175ml

M²= 0.2M

So V¹= (V²N²)/N² = (175 x 0.2)/6

V¹ = 5.83 ml

Explanation:

Therefore diluting 5.83 ml of 6.00M NaOH to 175 m l ,we get 0.2M Solution.

5.83 ml of 6.0 M NaOH is required to prepare 175 ml of 0.20 M NaOH  by dilution according to the concept of molar concentration.

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.For the mentioned example volume of 6 M NaOH is found out as,

M₁V₁=M₂V₂

∴V₁=0.20×175/6=5.83 ml

Thus, 5.83 ml of 6 M NaOH  is required to prepare 175 ml of 0.20 M NaOH  by dilution.

Learn more about molar concentration,here:

https://brainly.com/question/21841645

#SPJ2

Answer:

CaC2 + 2H20 ⇋Ca(OH)2 + C2H2

Explanation:

CaC2 + A H20 ---> Ca(OH)2 + A C2H2

This is calcium carbide reacting with water to produce calcium hydroxide and ethyne commonly called acetylene.

Let's now balance the equation.

CaC2 + 2H20 ⇋Ca(OH)2 + C2H2

Answer:

one quarter of the original amount, so 0.25 g

Explanation:

Answer:

C

Explanation:

Answer:

A BIG DI*CK

Explanation:

Answer:

4260ml

Explanation:

Answer:

Explanation:

The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.

Answer:

pH 3

Explanation:

The lower the pH the more acidic. The higher is more bleachier.

Answer:

3 atoms

Explanation:

"In one mole of Barium, there are 3 x [tex]N_{A}[/tex] barium and chlorine atoms, where [tex]N_{A}[/tex] is Avagadro's Number, 6.022 x [tex]10^{23}[/tex] " - anor277 via Socratic

Answer:

Its pressure will be 0.54 atm at 100 K.

Explanation:

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 collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

Gay-Lussac's law can be expressed mathematically as the quotient between pressure and temperature equal to a constant:

[tex]\frac{P}{T} =k[/tex]

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

[tex]\frac{P1}{T1} =\frac{P2}{T2}[/tex]

In this case:

Replacing:

[tex]\frac{1.75 atm}{323 K} =\frac{P2}{100 K}[/tex]

Solving:

[tex]P2= 100 k*\frac{1.75 atm}{323 K}[/tex]

P2= 0.54 atm

Its pressure will be 0.54 atm at 100 K.