Answer:
he average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance
Analytical
Analytical chemistry seeks to determine the composition of substances.
The correct answer for the question that is being presented above is this one: "A a naturally occurring, inorganic solid that has a crystal shape and a definite chemical composition." The correct definition of minerals is that it is a naturally occurring, inorganic solid that has a crystal shape and a definite chemical <span>composition</span>
Answer:
The speed of the car is 75 km per hour
Explanation:
Speed is distance over time so 150 km divided by 2 hours is 75km per hour.
Please mark brainliest!!! Thanks.