Cell reactions in a fuel cell:
Oxidation at the anode (-): Oxidation of hydrogen gas to water occurs at the anode. Reduction at the cathode (+): Reduction of oxygen gas to OH ions occurs at the cathode.
Leading up to this, calcium gave up 2 valence electrons and thus was denoted as a cation. These 2 electrons were transferred to bromine, which received an overall negative charge because of the addition of 2 valence electrons in its valence shell, and thus formed a negatively charged ion, an anion.
Both formed an ionic bond, due to the electrostatic charge of attraction between the 2 oppositely charged ions. If many ions of Ca and Br are present and numerous ionic bonds have formed it will undergo an arrangement which is that of an ionic lattice, type of structure.
The answer is c how much mass per unit of volume is in a substance
Most living things are made up of one cell and they are called unicellular<span>organisms. Many other living things are made up of a large number of cells that form a larger plant or animal. These living things are known as </span>multicellular organisms<span>.</span>
Explanation:
to convert a decimal into a fraction you can write a fraction with the decimal number as the numerator and 1 as the denominator.
then multiply each the numerator and the denominator by 100.
then simplify that fraction