Answer:
24.309
Explanation:
Let A, B, and C represent the three isotopes.
For isotope A:
Mass number = 23.99
Abundance = 78.99%
For isotope B:
Mass number = 24.99
Abundance = 10.00%
For isotope C:
Mass number = 25.98
Abundance = 11.01%
Atomic mass of Mg =?
Atomic mass = [(Mass of AxA%)/100] + [(Mass of BxB%)/100] + [(Mass of CxC%)/100]
Atomic Mass = [(23.99x78.99)/100] + [(24.99x 10)/100] + [(25.98x11.01)/100]
Atomic number = 18.950 + 2.499 + 2.860
Atomic mass of Mg = 24.309
Explanation:
From the question , arranging the organization levels from largest to smallest we have
<h3>Organism , organ system , organ , tissue , cell .</h3>
Hope this helps you
Answer:
A. Reactants
Explanation:
A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
Explanation:
He needs 2.3 dkg
dkg is a unit of mass and represents dekagrams.
The relationship between dkg and g is given as;
1 dkg = 10g
This means he needs 2.3 * 10 = 23 g of graphite.
Since he already has 460g of graphite, he doesn't need any additional graphite.
Answer:
you sound like a cool guy, ill email ya one of these days
Explanation:
