The model shown is a ball and stick model of a water molecule showing atomic structure of a water molecule consisting of two atoms of hydrogen bonded to an oxygen atom.
<h3>What are models?</h3>
Models are representations in the form of diagrams, pictures, or illustration of concepts, ideas, or structures of other objects.
In science, models are used to represent molecules and atoms of substances.
Some common models used in chemistry to represent the molecules of substances are:
- ball and stick model
- space-filling models
The model shown is a ball and stick model of a water molecule.
The atomic structure of a water molecule consists of two atoms of hydrogen bonded to an oxygen atom.
In conclusion, models are used to represent the structure of other substances or concepts.
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Answer:
Too much iodine can be harmful if you don't need it. You don't need to take iodine (supplements) if you already have a varied and balanced diet.
Explanation:
Iodine is already contained in table salt so you don't need to add any more.
Explanation:
The given data is as follows.
Concentration of acid, [HF] = 2 M
Concentration of salt, [NaF] = 0.472 M
Concentration of base, [NaOH] = 1.00 M
=
So, NaOH being a base will react with the acid that is, HF. And, according to Henderson-Hasselbalch equation we have he following.
pH =
Also, we known that
so,
= 3.1426
Hence, pH =
pH = 2.5155
Thus, we can conclude that pH of the solution is 2.5155.
Well , first you write the formulas of the reactants and the reaction products. and then you balance the equation, making sure the number of atoms of each substance that appear among the reactants is the same that is in the reaction products.
<span>here it goes.. </span>
<span>Hydrogen plus Oxygen yield water. </span>
<span>2H2+ O2--> 2H2O </span>
<span>Nitrogen plus hydrogen yield ammonia. </span>
<span>N2+2H2-->2NH4 </span>
<span>Aluminum bromide plus chlorine yield aluminum chloride and bromine. </span>
<span>2AlBr3+ 3Cl2--> 2AlCl3+3Br2 </span>
<span>Hydrochloric acid plus sodium hydroxide yield sodium chloride plus water. </span>
<span>HCl+NaOH-->NaCl+H2O </span>
<span>Iron plus Lead(2) sulfate react forming iron(2) sulfate plus lead. </span>
<span>Fe+ PbSO2-->FeSO2+2Pb </span>
<span>Potassium chlorate when heated produces potassium chloride plus oxygen gas. </span>
<span>KClO3---> KCl+ 3/2O2 </span>
<span>Sulfuric acid decomposes to form sulfur trioxide gas plus water. </span>
<span>H2SO4-->SO3+H2O </span>
<span>Sodium oxide combines with water to make sodium hydroxide. </span>
<span>Na2O+H2O-->2NaOH </span>
<span>Potassium iodide reacts with bromine forming potassium bromide plus </span>
<span>2KI+ BR2--> 2KBr+ I2</span>