B, plant
A pathogen is a bacterium, virus, or other microorganisms that can cause disease. A plant does cause a disease
If you mix Ammonia as well as Hydrogen chloride, you will get ammonium chloride. It is given by NH3 (g) + HCl (g) → NH4Cl(s).
Take 58.5 and divide that by 0.5, we get 117 grams of Sodium Iodide per liter
If you are looking for molarity. Then there are 149.88 grams in one mole of Sodium Iodide. We have 0.78 moles of sodium iodide. Divide that by 0.5 liters (also dm3)
0.78 / 0.5 = 1.56 M
Answer:
C. A Roman numeral placed after the transition metal identifies its
oxidation state.
Explanation:
A. A superscript on the transition metal identifies its oxidation state
in the formula.
This is wrong! Superscript are usually not written in formula of compound and for those that have superscripts, it refers to the oxidation number of the compound as a whole.
B. The subscript of the transition metal in the formula identifies its
oxidation state.
This is wrong! Subscripts shows how many atoms of the element is present.
C. A Roman numeral placed after the transition metal identifies its
oxidation state.
This is correct! Examples include; manganese (II) oxide, Potassium manganate (VII) etc
D. The total charge of the negative ion identifies the oxidation state
of the transition metal.
This is wrong! Because there are cases of other metals or cations being present in the compound aside the transition metal
Answer:
d
Explanation:
it's the only one that seems to make sense