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jek_recluse [69]
3 years ago
9

The freezing and thawing action of water affects a rock by?

Chemistry
2 answers:
Alex Ar [27]3 years ago
6 0
<span>The water soaks in the cracks of rocks, freezes and expands breaking the rock apart.</span>
Alexxx [7]3 years ago
4 0
The answer is letter b
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xeze [42]
I've prepared some analysis and <span>cucumbers do have many comparable properties to potatoes, tomatoes, and lemons, all of which I know do work. So I would presume that cucumbers would also work. I would recommend trying it yourself to perceive. I'd love to hear the outcomes of your experiment. ;) </span>
6 0
3 years ago
How much heat is absorbed when 447 g of water , Cp = 4.184 J/goC, goes from 25.0 oC to 35.0 oC?
Digiron [165]

Answer:

The answer to your question is  Q = 18702.5 J

Explanation:

Data

mass of water = m = 447 g

Cp = 4.184 J/g°C

Temperature 1 = T1 = 25°C

Temperature 2 = T2 = 35°C

Heat = Q = ? Joules

Process

1.- Write the formula to calculate heat

    Q = mCp(T2 - T1)

2.- Substitution

    Q = (447)(4.184)(35 - 25)

3.- Simplification

    Q = (447)(4.184)(10)

4.- Result

    Q = 18702.5 J

8 0
3 years ago
Name an element in the third period (row) of the periodic table with a total of 4 3p electrons
Wittaler [7]

Answer:

sulfur

Explanation:

sulfur has 4p electrons.

phosphorus has 3p electrons.

The question is asking which one has 4

3 0
3 years ago
Planck’s constant is approximately equal to which of the following?
KonstantinChe [14]
Henlo!
Bohr's model was unable to calculate or it required precise information about position of an electron and its velocity. It is very difficult to calculate velocity and position of an electron at the same time because electron i too small to see and may only be observed if peturbed, for example we could hit the electron with another particle such as photon or an electron, or we could apply electric or magnetic field to the electron. This will inevitably change the position of the elctron or its velocity and direction. Heisenberg aid that more precisely we can define the position of an electron, the less certainity we are able to define its velocity and vice versa. 
In short, first option is correct one

7 0
3 years ago
What is the current in the 30 ohm heating coil of a coffee maker that operates on a 120 volt circuit?
SpyIntel [72]

Answer:

4Amps. i can't see other questions clearly

Explanation:

using  ohms law  \\ v = ir

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  • R=30ohms
  • I=?

I=V/R

I=120/30

I=4amps

8 0
3 years ago
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