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Illusion [34]
3 years ago
9

What is weathering?

Chemistry
2 answers:
Monica [59]3 years ago
7 0

Answer:

C the breaking down of rock

Gnesinka [82]3 years ago
3 0

Answer: option C. the breaking down of rock

Explanation: weathering is the breaking down of rock by the action of rain, temperatures and biological activities.

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Can someone please describe what they’re seeing in this picture?
Oduvanchick [21]

Answer:

In the given figure, There are two atoms -

  • Sodium ( Na )
  • Chlorine ( Cl )

sodium has one electron in valence shell and to get noble gas configuration ( stability ) it need to donate the outer most electron.

whereas,

chlorine has 7 electrons in valence shell and to get noble gas configuration ( stability ) it need to get one more electron.

in this condition Na ( sodium ) donates it's outermost electron to Cl ( chlorine ) and both became stable.

but now sodium has more number of protons than the electrons hence it get positive (+) charge and chlorine has more electrons than the protons hence it get negative (-) charge

so, they get stick to each other by strong electrostatic force acting on the charged atoms and forms a salt " NaCl " ( sodium chloride ) .

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

5 0
2 years ago
A balloon of helium gas in Alabama has a volume of 22.4 L at 26°C and a 1.03 ATM how big with a balloon get if is transported to
Dimas [21]

Answer:

The final volume of the balloon is = 28.11 L

Explanation:

Initial pressure P_{1} = 1.03 atm = 104.325 K pa

Initial temperature T_{1} = 26 °c = 299 K

Initial volume V_{1} = 22.4 L

Final temperature T_{2} = 22 °c = 295 K  

Final pressure P_{2} = 0.81 atm = 82 K pa

We know that

\frac{P_{1} V_{1} }{T_{1} } = \frac{P_{2} V_{2} }{T_{2} }

Put all the values in above formula we get

\frac{(104.325)(22.4)}{299} = \frac{(82)(V_{2} )}{295}

V_{2} = 28.11 L

This is the final volume of the balloon.

8 0
3 years ago
Which instrument is used to measure mass?
alexdok [17]

Answer:

Balance

Explanation:

hope i helped

7 0
3 years ago
The scientific theory is called
Aliun [14]

Answer:

is a well-sustantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.such fact- supported theories are not "guesses" but reliable accounts of the real worlds.

3 0
3 years ago
If 45.0 mL of a 0.0500 M HNO3, 10.0 mL of a 0.0500 M KSCN, and 30.0 mL of a 0.0500 M Fe(NO3)3 are combined, what is the initial
jeka94

Answer:

the  initial concentration of SCN- in the mixture is 0.00588 M

Explanation:

The computation of the initial concentration of the SCN^- in the mixture is as follows:

As we know that

KSCN \rightarrow K^ + SCN^-

As it is mentioned in the question that KSCN is present 10 mL of 0.05 M

So, the total milimoles of SCN^- is

= 10 × 0.05

= 0.5  m moles

The total volume in mixture is

= 45 + 10 + 30

= 85 mL

Now the initial concentration of the SCN^- is

= 0.5 ÷ 85

= 0.00588 M

hence, the  initial concentration of SCN- in the mixture is 0.00588 M

5 0
3 years ago
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