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IRINA_888 [86]
2 years ago
11

Match the molecular shapes to the correct Lewis structures

Chemistry
2 answers:
natali 33 [55]2 years ago
8 0

Answer:

1) trigonal planar

2)tetrahedral

3)trigonal pyramid

4) linear

Solnce55 [7]2 years ago
8 0

Answer:

Match up correct answers:

1) <em>trigonal planar</em>

2) <em>tetrahedral</em>

3) <em>trigonal pyramid</em>

4) <em>linear</em>

Explanation:

(correct answers on <em>portal</em> and <em>edmentum </em>users)

Hope I was helpful, have a great day and good luck :)

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LINKING IN<br> TECHNICAL OBJECTS<br> 1 a) What is linking?
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Answer:

A link is a fastening unit that attaches two parts of an object together

Different types of links have different characteristics

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3 years ago
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Which describes why the magma moves in the direction of
kenny6666 [7]

The magma is heated and becomes less dense by the core moving it toward the crust.

Explanation:

Magma is a molten or partially molten rock form. Magma consists of silicate liquid, although carbonate and sulfide melts occur as well. It moves either to depth or to Earth’s surface and is ejected as lava. Suspended crystals and fragments of un-melted rock get transported in the magma dissolved volatiles may separate as bubbles and some liquid get crystallize during movement.

Several interrelated physical properties determine the characteristics of magma, including chemical composition, viscosity, dissolved gases, and temperature.Magma also form igneous rock.

Therefore the magma is heated and becomes less dense by the core moving it toward the crust.

7 0
3 years ago
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Rutherford used a gold foil experiment and discovered what part of an atom
slamgirl [31]
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During Rutherford's experiment<span> of shooting particles through a sheet of </span>gold foil <span>he had discovered that some were deflected! This had proved that an </span>atom<span> is actually a small dense nucleus surrounded by orbiting electrons!

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7 0
3 years ago
An aqueous solution is 4.44 M nitric acid and the density of the solution is 1.42 g/mL. Calculate the mole fraction of this solu
prohojiy [21]

The mole fraction of HNO3 is  0.225

<u>Explanation:</u>

<u>1.</u>Given data

Density = 1.429 /ml

Mass% = 63.01 g HNO3 / 100g of solution

The mass of 63.01 g is in 100 / 1.142 /ml of solution

Or 63.01 g in 55.7 mL

Molarity = 15.39 moles / L

Mass of water in 100g = 100 - 63.01=36.99 g

So 63.01 grams in 36.99 grams of water

So mass of HNO3 in 1000grams of water = 63.01* x 1000 / 36.99 = 1703

Moles of HNO3 in 1000g = 1703 / 63.01 = 27.03 moles

Molality = 27.03 molal (mole / Kg)

Mole fraction = Mole of HN03 / Moles of water + mole of HNO3

Mole of water = 62/ 18 = 3.44

Moles of HNO3 = 63.01 / 63.01 = 1.000

Mole fraction = 1.000 / 3.44 + 1.000 = 0.225

The mole fraction of HNO3 is  0.225

7 0
3 years ago
Use reactivity series to predict the products of the following reactions. complete and balance the equation
Gre4nikov [31]

Answer:

products and reaction

Explanation:

Products

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2. ZnSO4 and Fe

3. CaCl2 and H2

Reactions

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3.   2HCl + Ca → CaCl2 + H2

4 0
3 years ago
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