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Anna35 [415]
3 years ago
5

Kamir and Alexis are studying the properties of water. They conducted a variety of experiments to determine its physical and che

mical properties. Of the tests the students conducted, which one illustrates a chemical property of water?
A) Salt dissolves in water.
B) Oil and water do not mix.
C) Pencil shavings float on water and do not dissolve.
D) Neutral water react s with carbon dioxide to form an acid solution.
Physics
2 answers:
Mice21 [21]3 years ago
5 0

Answer: D) Neutral water react s with carbon dioxide to form an acid solution.

Explanation: A physical property is defined as the property in which a change in shape, size takes place. No new substance gets formed while measuring physical properties.

Example: A) Salt dissolves in water.  

B) Oil and water do not mix.  

C) Pencil shavings float on water and do not dissolve.

A chemical property is defined as the property in which a change in chemical composition takes place. A new substance is formed while measuring chemical properties.

Example: D) Neutral water react s with carbon dioxide to form an acid solution.

CO_2+H_2O\rightarrow H_2CO_3

solniwko [45]3 years ago
4 0

The answer is D) neutral water reacts with carbon dioxide to form an acid solution

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miskamm [114]

Answer:

Charge = 4.9096 x 10⁻⁷ C

Explanation:

First, we find the resistance of the copper wire.

R = ρL/A

where,

R = resistance = ?

ρ = resistivity of copper = 1.69 x 10⁻⁸ Ω.m

L = Length of wire = 2.16 cm = 0.0216 m

A = Cross-sectional area of wire = πr² = π(0.00233 m)² = 1.7 x 10⁻⁵ m²

Therefore,

R = (1.69 x 10⁻⁸ Ω.m)(0.0216 m)/(1.7 x 10⁻⁵ m²)

R = 2.14 x 10⁻⁵ Ω

Now, we find the current from Ohm's Law:

V =IR

I = V/R

I = 3.27 x 10⁻⁹ V/2.14 x 10⁻⁵ Ω

I = 1.52 x 10⁻⁴ A

Now, for the charge:

I = Charge/Time

Charge = (I)(Time)

Charge = (1.52 x 10⁻⁴ A)(3.23 x 10⁻³ s)

<u>Charge = 4.9096 x 10⁻⁷ C</u>

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You go to the store and buy 3 apples. Each apple has a mass of 4.66 grams. What is the total mass of apples you bought.
solong [7]

its 13.98. it's simple multiplication 3* 4.66= 13.98

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sukhopar [10]
The magnetizing current in a transformer is rich in 3rd harmonic. This is because harmonics are AC voltages and currents with frequencies that are generally higher. 
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Answer:

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