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Vika [28.1K]
3 years ago
12

3. Define the following:

Chemistry
1 answer:
Travka [436]3 years ago
3 0
The answer will be a
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What are the chemical symbols for the two elements found in iron oxide
Gnom [1K]
For Iron: Fe

For Oxygen: O

These are the two chemical symbols for the two elements found in Iron Oxide.
7 0
3 years ago
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The gas in the piston is at constant temperature. A student increases the pressure on the piston from 2 atm to 3 atm. The observ
Vesna [10]

Answer: row 1, the volume decreases when the pressure increased

Explanation:

7 0
3 years ago
How many grams of MgCl2 (molar mass = 95.20 g/mol) will be formed from 25.6 mL of a 0.100 M HCL solution reacting with excess ma
lorasvet [3.4K]
The balanced equation for the above reaction is as follows;
Mg + 2HCl ---> MgCl₂ + H₂
stoichiometry of HCl to MgCl₂ is 2:1
we have been told that Mg is in excess therefore HCl is the limiting reactant 
number of HCl moles reacted - 0.100 mol/L x 0.0256 L = 0.00256 mol
according to molar ratio, number of MgCl₂ moles formed - 0.00256/2 
Therefore number of MgCl₂ moles formed - 0.00128 mol
mass of MgCl formed - 0.00128 mol x 95.20 g/mol = 0.122 g
3 0
3 years ago
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Chemical energy is a form of A. kinetic energy only. B. both potential and kinetic energy. C. neither potential nor kinetic ener
svetlana [45]

wrong. If its for the study island its potential energy only.

6 0
3 years ago
Transpiration meaning and examples
FinnZ [79.3K]

Explanation:

Transpiration is the movement of water through plants using the xylem and also their loss from plants surfaces.

Water is a lost from plants from the leaves and the stomata. This water is usually replaced by the absorption of water by the root.

  • Transpiration is an important part of the water cycle in the biosphere.
  • Significant amount of water is lost from plant in the process of transpiration.
  • Transpiration water condenses in the atmosphere to form rain clouds.

An example of transpiration when water loses water from their leaves.

7 0
3 years ago
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