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Angelina_Jolie [31]
3 years ago
11

Convert 8.4 • 10^16 molecules of CO2 to moles

Chemistry
1 answer:
Degger [83]3 years ago
8 0

Answer:

0.00000000000000084

Explanation:

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What is the pH of a solution with an OH- ion concentration of 4.01E-4?
Ber [7]

Answer:

[H]=10^-4 when ph=4 higher

[H]=10^-5 when ph =5 lower

Explanation:

brains

8 0
3 years ago
how many coefficients need to be changed to make this chemical equation balanced? Zn + HNO3 --> Zn (No3)2 + H2
mestny [16]

Coefficient 2 should be placed in the equation before the nitric acid in the reactant so that the chemical reaction becomes balanced.

The given chemical reaction is,

Zn + HNO3 --------> Zn (No3)2 + H2

Here, the elements Hydrogen, Nitrogen, and Oxygen are unbalanced.

These elements are altogether found in HNO₃ on the reactant side and are found as nitrate and hydrogen gas on the product side.

To balance the equation, the coefficient 2 is to be added in the reactant side so that 2 moles of Hydrogen, Nitrogen, and Oxygen would be balanced with 2 moles of Nitrate and two moles of Nitrogen.

On adding 2 on reactant side, we get

Zn + 2HNO3 -----------> Zn(NO3)₂ + H₂

This gives us a balanced equation and thus the equation could be balanced this way.

Therefore, coefficient 2 is to be added to make the equation to be balanced.

To know more about the balanced equation, click below:

brainly.com/question/26694427

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8 0
1 year ago
How many valence electrons does aluminum (AI) have available for bonding?<br> 1<br> 2<br> 3<br> 4
faltersainse [42]
The answer would be 3
5 0
3 years ago
Which statement is true of the particles that make up a substance?
Ket [755]

Answer: particle in gas have more energy than the particles in a liquid

<h3 />

Explanation: this is because the amount of energy is directly proportional to how random the system is. gaseous molecules are in a more constant random motion than the liquid molecules

5 0
3 years ago
The molar solubility of cui is 2. 26 × 10-6 m in pure water. Calculate the ksp for cui.
nataly862011 [7]

Ksp(the solubility product constant) = [Cu⁺] [I⁻]

So, the Ksp for Cui would be:

Ksp = (2.26 × 10⁻⁶) (2.26 × 10⁻⁶) = 5.11 x 10⁻¹²

<h3 />

Formula used:

K = K_{sp} = [A^+]^a [B^-]^b, where

Ksp = solubility product constant

A⁺    = cation in an aquious solution

B⁻ = anion in an aqueous solution

a, b = relative concentrations of a and b

<h3><u>Definition</u></h3>

The equilibrium constant for a solid material dissolving in an aqueous solution is the SOLUBILITY PRODUCT CONSTANT, Ksp. It stands for the degree of solute dissolution in solution. A substance's Ksp value increases with how soluble it is.

Take into account the general dissolving response (in aqueous solutions) below:

                           aA(s)⇔cC(aq)+dD(aq)

The molarities or concentrations of the products (cC and dD) must be multiplied in order to find the Ksp. Any product that has a coefficient in front of it must be raised to the power of that coefficient (and also multiply the concentration by that coefficient).

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7 0
1 year ago
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