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1 year ago

Write a balanced equation for the reaction of Zn(H₂O)₄²⁺ in aqueous NaCN.

Chemistry

1 answer:

bonufazy [111]1 year ago

7 0

Na is spectator ion , it is not present in final solution.

What is a full balanced equation?

The global balance equations (also known as full balance equations) are a set of equations that characterize the equilibrium distribution (or any stationary distribution) of a Markov chain, when such a distribution exists.

Cyanide will form a 4 co ordinate complex .

Charge of cyanide = -1 , whereas water has no changes

Zn( H₂o)₄]²⁺ (aq) + 4 CN⁻ (aq) [ Zn (CN)₄]² (aq) + 4Ho

As Na is spectator ion , it is not present in final solution.

Learn more about balanced equation

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GrogVix [38]

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(Sorry if this isn’t grade 6 writing just put it into ur own words)

3 0

2 years ago

A sample of fluorine gas exerts a pressure of 900 mmHg. When the pressure is changed to 1140 mmHg, the volume is 250 mL. What wa

UNO [17]

Let's use Boyle's Law here. P1*V1 = P2*V2
Given: (assuming that there are decimals at the end for Sig Figs)
P1 = 900.mmHg
P2 = 1140.mmHg
V1 = ???
V2 = 250.mL

900.mmHg* ??? = 1140.mmHg * 250.mL
??? = 1.27*250.mL
??? = 318.mL

Therefore, the original volume is 318mL.

8 0

2 years ago

The process of generating electricity from dams and nuclear power plants is very different, but some of the energy transformatio

Alexxx [7]

Answer:

Kinetic energy to mechanical energy, and mechanical energy to electrical energy.

Explanation:

From the Law of conservation of Energy, which state that energy can neither be created nor destroyed but can be transformed from one form to another. Energy transformation is essential in science and technology, in the process of generating electricity from dams and nuclear power plants

some of the energy transformations are the same, the energy transformations occur in both dams and nuclear power plants is Kinetic energy to mechanical energy, and mechanical energy to electrical energy. Kinectic energy is the energy in motion which means the dams is a running water and posses a Kinectic energy then it's is been convert to mechanical energy (which is the macroscopic energy) then to electrical energy by producing light.

3 0

2 years ago

Read 2 more answers

1.5 atm is the same pressure as... (1 atm 760 mmHg)

Darina [25.2K]

<h3>Answer:</h3>

1100 mmHg

<h3>General Formulas and Concepts:</h3>

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Chemistry

Gas Laws

Pressure

Stoichiometry

Using Dimensional Analysis

<h3>Explanation:</h3>

Step 1: Define

[Given] 1.5 atm

[Solve] mmHg

Step 2: Identify Conversions

1 atm = 760 mmHg

Step 3: Convert

[DA] Set up: $\displaystyle 1.5 \ atm(\frac{760 \ mmHg}{1 \ atm})$
[DA] Multiply/Divide [Cancel out units]: $\displaystyle 1140 \ mmHg$

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

1140 mmHg ≈ 1100 mmHg

3 0

2 years ago

How many moles are there in 987 grams of Ra(OH)2? id also love to know the simplest equation for converting moles --> so i co

OlgaM077 [116]

Mole = $\frac{mass}{molar mass}$

Mass of Radium Hydroxide = 987g
Molar Mass of $Ra(OH) _{2}$ = ((226) + (2 * 16) + (2 * 1))
= 260 g / mol

∴ Moles of $Ra(OH) _{2}$ = $\frac{987 g }{ 260 g / mol }$
= 3.796 mols

6 0

2 years ago