Answer and Explanation:
Meteorologists use meteorological data to assess current temperature and precipitation rates and even make projections of these rates in future times. If high temperature rates combined with low rainfall can cause catastrophic fires to occur, then analyzing data on these factors and making projections on them is essential to prepare for those fires.
It’s 7.0 I just had the apex practice test
Atoms make up the mass of all materials
Atoms cannot be created or destroyed
So in a balanced chemical equation, all atoms are accounted for, and therefore all mass is accounted for and conserved.
Answer:
Gallium-72
Explanation:
The elements are identified by the number of protons of the atom, which is its atomic number.
In this case the number of protons 39 (atomic number 39) permit you to identify the element as gallium.
Now, to identify the isotope you tell the name of the element and add the mass number.
The mass number is the sum of the protons and the neutrons
In this case, the number of neutrons is the original 39 plus the 2 added suddenly, i.e. 39 + 2 = 41, so the mass number is 31 + 41 = 72
Therefore, the isotope is gallium - 72.
The answer to this is "D" The reason it is not "C" is because some steroids are used to treat medical issues, and others are used for the purpose of repairing the muscle faster after working out such as anabolic steroid
