Answer:
62.5 km/hr
Explanation:
Speed can be found by dividing the distance by the time.
s=d/t
We know the car travelled a distance of 125 kilometers in 2 hours. Therefore:
• d=125 km
• t= 2 hr
Substitute the values into the formula.
s= 125 km/ 2 hr
Divide
s= 62.5 km/ hr
The speed of the car is 62.5 kilometers per hour.
The answer to this item is the first choice, MOLECULES. The molecules are the smallest particles of both the compounds and even the biatomic elements. They are made up of atoms that are being held together through chemical bonds of different types depending on the type of atoms that shared the electrons.
Answer: Option (B) is the correct answer.
Explanation:
Expression for the given decomposition reaction is as follows.
Let us assume that x concentration of 
is present at the initial stage. Therefore, according to the ICE table,
Initial : x 0
Change : - 0.1 
Equilibrium : (x - 0.1) 0.2
Now, expression for 
of this reaction is as follows.
Putting the given values into the above formula as follows.
x = 0.12
This means that 
= x = 0.12 atm.
Thus, we can conclude that the initial pressure in the container prior to decomposition is 0.12 atm.
Answer:
Lost pigment of marker when dipped in alcohol
Explanation:
dependent viable = output
so it's the output of what happens after the input.
- she put the marker in the water which is the independent variable, that's the input
- the output or the result of that decision is having lost pigment in the marker
