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Alekssandra [29.7K]

2 years ago

6

I am accessible in most locations on Earth, but certain areas have much more of me. I am perpetually renewed and cause little or

no waste or pollution since I am not fuel. Technology used to harness/convert me is expensive and I still only work most of the day.

2 answers:

Alik [6]2 years ago

5 0

The answer is Solar power

Troyanec [42]2 years ago

3 0

Answer:

Solar Power

Explanation:

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What effect does heating a solid to a hightemperature have have on its crystal lattice ??

kotegsom [21]

Arrangement of atoms or group of atoms in a three dimensional ordered pattern in a crystal is said to be a crystalline lattice. They are arranged in a specific pattern with high symmetry. The heating of the crystal at high temperature will result in the increase of vibrational kinetic energy of the atoms in the crystal and this will result in the breaking of lattice apart and due to the breaking of lattice apart the ions will flow freely.

Thus, the heating of a solid at high temperature will lead to the lattice breaks apart and ions will flow freely.

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3 years ago

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Sodium hydroxide (NaOH) and elemental sodium (Na)

Olegator [25]

Answer:

If the question is which can make a buffer, then NH3, NH4Cl should be correct. Because Ammonium (NH4) is conjugate acid of NH3 so they can form an equilibrium which is basically a buffer whose purpose is to resist pH change.

Explanation:

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2 years ago

4. How many moles of gold (Au) are in a pure gold nugget having a mass of 25.0 grams.

ikadub [295]

<h3>Answer:</h3>

0.127 mol Au

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

<u>Math</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Reading a Periodic Table
Moles

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Given] 25.0 g Au

[Solve] moles Au

<u>Step 2: Identify Conversions</u>

[PT] Molar Mass of Au - 196.97 g/mol

<u>Step 3: Convert</u>

[DA] Set up: $\displaystyle 25.0 \ g \ Au(\frac{1 \ mol \ Au}{196.97 \ g \ Au})$
[DA] Multiply/Divide [Cancel out units: $\displaystyle 0.126923 \ mol \ Au$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.126923 mol Au ≈ 0.127 mol Au

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2 years ago

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Develop the relationship between reducible and irreducible representation of C2v point group taking H2O as example and 3N cartes

Pavel [41]

Answer:

hshdhdhdhdbebdbduzhshsjuuu66s8s8d

Explanation:

bdhdhdfhshdudhdhd7x6x8xjdjdjdjdjdid8dijdjdjdhdhdj

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2 years ago

The SI unit of pressure is the ______________.

steposvetlana [31]

The answer is Pascal

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3 years ago

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