It should be noted that controlling the rate of a chemical reaction is useful to the professions to improving production.
It should be noted that a chemicalreaction simply means the process by which substances are converted to another substance.
In this case, controlling the rate of a chemical reaction is useful to the professions to improving production.
By finding out how fast products are made, one can develop methods to into such production.
Learn more about chemical reaction on:
(2) They have identical molecular structures and different properties.
(3) They have different molecular structures and identical properties.
(4) They have different molecular structures and different properties.
Answer: Option (4) is the correct answer.
Explanation:
In an molecule there are two oxygen atoms and in a molecule there are three oxygen atoms.
So, there will be different number of electrons involved in the bonding of atoms for both and molecules.
Therefore, both of them will have different structure and reactivity.
Thus, we can conclude that the statement they have different molecular structures and different properties, correctly describes two forms of oxygen, O2 and O3.
boiling point
color
reactivity
________________________________________________________
If a substance cannot be separated physically or chemically, it is __________.
a compound
an element
a solution
a mixture
___________________________________________________________________
If a substance cannot be separated physically, it is __________.
Question 6 options:
a pure substance
heterogeneous
a mixture
an alloy
___________________________________________________________________
How would you classify tap water?
Question 8 options:
a pure substance
a homogeneous mixture
a compound
a heterogeneous mixture
___________________________________________________________________
When sugar and water are mixed they make a solution. Another way to say a solution would be to call it a __________________.
pure substance
homogeneous mixture
compound
heterogeneous mixture
reactivity
solution
mixture
homogeneous mixture
homogeneous mixture
i think the fourth one might be wrong sorry );
Which of the following would NOT be a physical property of matter?
reactivity
________________________________________________________
If a substance cannot be separated physically or chemically, it is __________.
an element
___________________________________________________________________
If a substance cannot be separated physically, it is __________.
an alloy
___________________________________________________________________
How would you classify tap water?
a compound
___________________________________________________________________
When sugar and water are mixed they make a solution. Another way to say a solution would be to call it a __________________.
compound
B. A 2 kg pot at 120°C
C. A 5kg pot at 25°C
D. A 2 kg pot at 25°C
The 2 kg pot at 25°C has the least thermal energy because it has both a smaller mass and a lower temperature than the other options.
The thermal energy of an object is related to both its mass and its temperature. In this case, we are considering iron pots of different masses and temperatures. Given the options, the 2 kg pot at 25°C would have the least thermal energy. This is because it has both a smaller mass and a lower temperature than all the other options listed.
The thermal energy is calculated by multiplying the mass, specific heat, and change in temperature. An object with a smaller mass and lower temperature would therefore have less thermal energy.
#SPJ5
Answer: D. A 2 kg pot at 25C.
Explanation:
Answer:
Molecules in food contain chemical energy that cells use to produce Adenosine triphosphate ATP. Respiration is that the method by that cell get energy within the sort of ATP. Adenosine triphosphate captures energy obtained from the breakdown of food molecules and releases it to fuel alternative cellular processes. ATP, is that the primary carrier of energy in cells. Once energy is required by the cell, it's born-again from storage molecules into ATP.