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3 years ago

Study the reaction and read the statement.

Chemistry

1 answer:

My name is Ann [436]3 years ago

4 0

Answer:

6.3 × 10–^4

Explanation:

Hello there!

In this case, since the rate laws are written in terms of the rate constant and the concentration of the species contributing to the rate of reaction, as this one is second order in Xe and first order in F2, the rate law would be:

$r=k[Xe]^2[F_2]$

Thus, by plugging in the rate constant and concentrations, we obtain:

$r=(0.025\frac{1}{M^2*s} )(0.25M)^2(0.4M)\\\\r=6.3x10^{-4}M/s$

Best regards!

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Balance this redox reaction occurring in acidic media:

Lelu [443]

Add 7 water atom to the right hand side to adjust the quantity of oxygen. Increase Cr(+3) by two to adjust the quantity of Cr. Duplicate Cl-by two to adjust the quantity of chlorine molecules.
Cr2O7[2-](aq) +2 Cl[-](aq) < - >2 Cr[3+] (aq) + Cl2(g)+7H2O
Presently adjust that charges.
you have - 4 charges on the left hand side, while +18 charges on the right hand side, there for include 14H+ the left hand side to adjust the charges
Cr2O7[2-](aq) +2 Cl[-](aq)+14H+ < - >2 Cr[3+] (aq) + Cl2(g)+7H2O
take note of that the oxidation number of hydrogen in water is +1

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3 years ago

Which factor causes chemical weathering it for science

VMariaS [17]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

Which of the following equations has correct formulas and also is a balanced equation?

aliya0001 [1]

Answer : The correct option is, (B)

Explanation :

Balance equation : Balanced equation are those equation in which the number of atoms of each element and the total charge must be same on products side and reactants side.

In the given options, only option (B) equation has correct formula and also a balanced equation.

$2Be+O_2\rightarrow 2BeO$

while the other options has incorrect formulas and also an unbalanced equations.

The correct equation for option A is, $CaCO_3\rightarrow CaO+CO_2$

The correct equation for option C is, $2Mg+O_2\rightarrow 2MgO$

The correct equation for option D is, $KCl+HNO_3\rightarrow HCl+KNO_3$

Hence, the correct answer is, (B) $2Be+O_2\rightarrow 2BeO$

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3 years ago

Which type of rock forms as a result of cooling and crystallization?

Dovator [93]

Answer:

Igneous rock is the type of rock that forms as a result of cooling an crystallization

Explanation:

Rocks are either sedimentary, igneous or metamorphic based on the chemical composition and the mode of formation.
Igneous rocks are formed as a result of the cooling and crystallization of magma from volcanic eruptions.
Igneous rocks are either intrusive, which form deep in the crust or extrusive which form on the surface of the earth.
Sedimentary rocks are formed as a result of deposition, and cementation of sediments.
Metamorphic rocks, on the other hand, are formed from the sedimentary and igneous rocks during the rock cycle.

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3 years ago

On the basis of the information above, what is the approximate percent ionization of HNO2 in a 1.0 M HNO2 (aq) solution?

enot [183]

Answer:

The answer is "2%"

Explanation:

Equation:

$HNO_2\ (aq) \leftrightharpoons H^{+} \ (aq) + NO_2^{-}\ (aq) \\\\\ K_a = 4.0\times \ 10^{-4}$