If you look at ionic compound, they are formed by a metal and a nonmetal. A metal is a positive ion after losing electron(s) and a nonmetal is a negative ion after gaining electron(s). Since there are both + and -, they are now electrically neutral.
Answer:
A molecular formula tells us what atoms and how many of each type of atom are present in a molecule.
Explanation:
If only one atom of a specific type is present, no subscript is used.
For atoms that have two or more present, a subscript is written after the symbol for that atom.
Molecular formulas do not indicate how the atoms are arranged in the molecule.
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A density of the substance is an intrinsic property. Each substance has its own value of density, and it is constant. Since density is equal to mass over volume, a graph of mass vs volume would have a constant slope equal to density. So, it will be a linear graph. The mass is in the y-axis, and the volume is on the x-axis. Locate V = 16 mL on the x-axis, project it upwards until it intersects with the linear graph, then, move towards the left to determine the corresponding y-value, represented by the mass.
Answer:
D. His device would not be successful because radio waves do not have enough energy to kill the bacteria.
Explanation:
D- If there is a color change that is indicative to that being a chemical change.
A, B, and C are examples of physical changes.
