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Leya [2.2K]
3 years ago
9

Select all of the answers that apply. Water _____. has a pH of 0 can dissolve most substances contains dissolved minerals expand

s when it freezes enters the atmosphere through infiltration
Chemistry
2 answers:
Solnce55 [7]3 years ago
6 0

The correct answers are can dissolve most substances, contains dissolved minerals, and expands when it freezes.

aleksandrvk [35]3 years ago
5 0
<span>Water: *can dissolve most substances * contains dissolved minerals *expands when it freezes</span>
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Unbalanced forces can cause an object change its motion in three ways. What are they?
fenix001 [56]
Accelerate, decelerate, and changing directions.
4 0
3 years ago
Explain how a heater warms the air in a room, including the words density, volume, and temperature in your explanation
seropon [69]

Answer:

Explanation:

Convection currents are created when the air above your radiator heats and then cools and is then heated again. This process happens continuously whilst you have your heating on and the current moves the heat around the room making it nice and warm and toasty.

8 0
3 years ago
MULTIPLE CHOICE
adelina 88 [10]

Answer:

C 2

Explanation:

2Nal + Cl2 → 2NaCl + I2

This is balanced equation

6 0
3 years ago
The force of attraction between a divalent cation and a divalent anion is 1.64 x 10-8 N. If the ionic radius of the cation is 0.
Elden [556K]

The radius of the anion is 7.413 nm

<h3>How to calculate the force of attraction between charges</h3>

The force of attraction (F) is given by the formula:

  • F = (1/4π∈r²)(Zc*e)(Za*e)

where:

∈ = permittivity of free space = 8.85*10⁻¹⁵ F/m

Zc = charge on the cation = +2

Zc = charge on the anion = -2

e = charge on an electron = 1.602 * 10⁻¹⁹ C

r = interionic distance

r = rc + ra

where rc and ra are the radius of the cation and anion respectively

F = 1.64 * 10⁻⁸ N

Therefore based on the equation of force of attraction:

1.64 *10⁻⁸ = [1/4π(8.85*10⁻¹⁵)r²](2 * 1.602*10⁻¹⁹)²

r² = 5.63 * 10⁻¹⁷

r = 7.50 nm

Since r = rc + ra

where rc = 0.087 nm

thus, ra = r - rc = 7.50 - 0.087

ra = 7.413 nm

Therefore, the radius of the anion is 7.413 nm

Learn more about ionic radius at: brainly.com/question/2279609

6 0
2 years ago
2. When carbohydrates are oxidized, the C-H bonds of the carbohydrate become C=O bonds of carbon dioxide. Oxidation is defined a
Flauer [41]

Answer:

A) The shared electrons in C-O bonds spend less time close to the carbon nucleus than the shared electrons in C-H bonds.

Explanation:

The electronegativity from H is 2.2, from C is 2.55 and from O is 3.44. This property is the measure of the attractive force between an atom and a pair of electrons.

So, the difference of electronegativity of H and C is smaller than the difference between O and C. Because oxygen is more electronegative, the electrons stay close to it in the bond C=O. So carbon has a partial positive charge in that bond. For the bond C-H, the shared electrons stay closes to carbon.

5 0
3 years ago
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