A. The electron moves from a lower to a higher energy orbital
Answer:
B
Explanation:
it is not A because the particles are compressed
it is not C because only liquids and gases can take shape of a container
and its not D because all particles move in a random motion but stay toghether if they are a solid
Answer:
Mass, m = 37900 grams
Explanation:
Given that,
The density of a brand of gasoline is 0.737 g/mL at 25°C
We need to find mass of gasoline would fill a 13.6 gal tank.
Density is defined as mass per unit volume.
We know that, 1US gal=3.78L
So,
1US gal = 3785.41 mL
13.6 US gal = 51481.6 mL
So,
or
m = 37900 g (in three significant figures)
So, the mass of the gasoline is 37900 grams.
Answer:The answer is B: conduct a controlled experiment
Explanation:
The accuracy of any measurement is best estimated from the perecentage error.
It gives the precision of the any quantity that is measured. It is calculated by determining the difference between the measured value and the theoritcial value. Measured values are those that are determined by the experiment
