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Andreyy89
2 years ago
5

Which of the following is an example of chemical weathering?

Chemistry
1 answer:
Nonamiya [84]2 years ago
4 0

Answer:O B. Weak acid breaks down minerals by reacting with them.

Explanation:

Chemical weathering is the process whereby rain water which sometimes can be acidic ( As rain falls down it reacts with CO2 in the atmosphere and form acid rain), This  reacts  with the minerals contained in rocks, dissolves and degrades  them further to form entire  new minerals.

An example of a rock that is greatly affected by overexposure of  acid rain is  limestone containing calcite  which easily degrades by acid rain.

Other processes whereby Chemical weathering can occur are through reaction with water and oxygen.

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Regular table salt is sodium chloride, NaCl. It is a bonding of an Na+ ion and a Cl- ion. Which of these ions is bigger?
fenix001 [56]

Answer:

in the periodic table we can see that the ions of Cl is greater than the ions in Na

3 0
3 years ago
A 20-ohm resistor is the loud connected to a voltage source of 220 volts. what current will flow through the conductor
grandymaker [24]
200 volts of current will flow through the conductor. 
5 0
3 years ago
A blank is scientific knowledge established through direct observation and remains constant. Scientific knowledge can change whe
KIM [24]

The words that complete the blanks are hypothesis and experimentation.

<h3>What is scientific knowledge?</h3>

The process by which scientists obtain information and establish knowledge is;

Observation ---> hypothesis ------> experiments ------> Theory -------> Law.

Thus after the process of observation what we have is merely a scientific hypothesis that needs to pass through the process of rigorous experimentation before it is proven to be true.

Thus the words that complete the blanks are hypothesis and experimentation.

Learn more about scientific knowledge:brainly.com/question/10601194

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4 0
2 years ago
An order is given to administer methylprednisolone, an anti-inflammatory drug, by IV at a rate of 36 mg every 30. min . The IV b
tigry1 [53]

Answer:

0.0192 mL per min.

Explanation:

IV rate = 36 mg per 30 min.

IV concentration = 125 mg per 2.0 mL

36 mg per 30 min. IV rate = 36/30 = 1.2 mg per min

If 125 mg methylprednisolone is present in 2.0 mL of the IV nag, how many mL would contain 1.2 mg?

      = 2x1.2/125

                        = 0.0192 mL

<em>Therefore, the flow rate of the IV must be </em><em>0.0192 mL per min</em><em>. in order to be able to deliver 36 mg per 30 min.     </em>

7 0
2 years ago
What does HNO3 produce when it is placed in a water solution ​
jeka57 [31]

Nitric acid does NOT react with water, water disassociates the molecules into those ions (above). ... Water,Being a polar solvent,…makes HNO3 ionise or dissociate or simply break down into Hydronium ions, i.e,H+ or H3O+ ions and nitrate NO3- ions..that's all.

-Google

4 0
2 years ago
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