The charges of ions that Sulfur (S), Potassium (K), Boron (B), Iodine (I), and Bromine (Br) are most likely to form are -2, +1, +3, -1, and -1, respectively. This is determined by their positions on the periodic table.
The charge of an ion that a certain atom is most likely to form is dependent on its position on the periodic table. Elements on the left side of the periodic table (like potassium) tend to lose electrons and form positive ions, while elements on the right side (like sulfur, iodine, bromine) tend to gain electrons and form negative ions.
The charge of a sulfur (S) ion is usually -2 because sulfur, being in Group 16, tends to gain two electrons to reach a stable electronic configuration. The charge of a potassium (K) ion is usually +1. This is because potassium, which is in Group 1, usually loses one electron to achieve a stable electron configuration. The charge of a boron (B) ion is usually +3 because boron, being in Group 13, tends to lose three electrons in order to reach stability. The charge of an iodine (I) ion is usually -1 because iodine, which is in Group 17, tends to gain one electron to reach stability. Lastly, the charge of a bromine (Br) ion is usually -1, because bromine, also in Group 17, tends to gain one electron to attain a stable electronic configuration.
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Answer:
Sulfur (S) is
-2
Potassium (K) is +1
Boron (B) is +3
Iodine (I) is -1
Bromine (Br) is -1
Explanation:
come close together and stick to each other
B.
escape into the surrounding air
C.
connect to each other in a rigid structure
D.
stop moving relative to each other
Answer:
come close together and stick to each other
Explanation:
The difference between three phases of a matter is the intermolecular interactions and thermal energy.
In case of gas, the intermolecular interactions are weak and thermal energy is high. So molecule move randomly, far from each other.
However in case of liquids the force of interactions are relatively stronger and the molecules are held together more effectively than gas.
Thus in order to condense a gas, we have to make the molecule come closer to each other so that they can be converted to liquid.
A.
come close together and stick to each other
Answer : The correct option is, Mass
Explanation :
As we know that there are 3 states of matter :
Solid state : It is a state in which the particles are closely packed and does not have any space between them. This state have a definite shape and volume.
Liquid state : It is a state in which the particles are present in random and irregular pattern. The particles are closely arranged but they can move from one place to another. This state have a definite volume but does not have a fixed shape.
Gaseous state : It is a state in which the particles are loosely arranged and have a lot of space between them. This state have indefinite volume as well as shape.
If we are taking 100 grams of ice then after melting its mass remains same but its shape, volume and temperature will be changed and after evaporation its mass remains same but its shape, volume and temperature will be changed.
Hence, the mass will stay constant, no matter if the substance is in the solid, liquid, or gas state.
Answer:
The correct answer is mass
Explanation:
Hello!
Let's solve this!
In the solid state, where the molecules occupy a definite place, and remain still, the shape and volume remain constant.
In the liquid state the molecules take the form of the container that contains them. So the shape is not defined but the volume is defined.
In the gaseous state the molecules are disordered, and have neither defined volume nor shape.
In all three states the mass remains constant.
The temperature causes the change of state.
We conclude that the correct answer is mass
Answer:
93.17 g
Explanation:
Recall that: mol = mass/molar mass
Also; mol = molarity x volume
mole of (NH4)2SO4 to be prepared = 282/1000 (dm3) x 2.50 (mol/dm3)
= 0.705 mol
This can be used to determine the mass of (NH4)2SO4 that will be required.
mass = mole x molar mass
Hence, mass of (NH4)2SO4 required = 0.705 x 132.15
= 93.17 g
Hence, the mass of ammonium sulfate that will be required to prepare 282 mL of a 2.50M solution is 93.17 g
A. AgCrO4(s) + Na2NO3(aq)
B. Ag2CrO4(s) + NaNO3(aq)
C. Ag(CrO4)2(s) + Na2NO3(aq)
D. Ag(CrO4)3(s) + Na(NO3)2(aq)
The products obtained when 2 AgNO₃ + Na₂CrO₄ reacts is Ag₂CrO₄ + 2 NaNO₃.
The reaction in which reduction and oxidation takes place simultaneously
by obtaining or losing an electron, the oxidation number of a molecule, atom, or ion varies.
In the question it is given that
AgNO₃(aq) + Na₂CrO₄(aq) → and we have to predict the products
So Silver Nitrate when reacts with Chromic Acid to from silver Chromate and sodium nitrate.
2 AgNO₃ + Na₂CrO₄ → Ag₂CrO₄ + 2 NaNO₃
Therefore Product B is the correct answer.
To know more about Redox Reaction
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move across the membrane to the outside of the cell.
stop moving across the membrane.
continue to move across the membrane in both directions.
move across the membrane to the inside of the cell.
will continue to move across the membrane in both directions.
i hope this helps you ( c )
have a wonderful day
~hailey lee~