A student views four models showing magnified views of the phases of matter.What question will best help the student determine which model is plasma?
A
Which model is composed of rapidly moving particles?
B.
Which model is composed of particles vibrating in place?
C
Which model is composed of electrically charged particles?
Which model is composed of particles sliding past each other?
Answers
Answer:
C Which model is composed of electrically charged particles?
Explanation:
The best question to resolve and determine the model which is plasma is to find one that is composed of electrically charged particles.
Plasma is one of the states of matter which is characterized by ions and other charged particles.
Matter is anything that has weight and occupies space.
There are four known states of matter which are:
- Solid
- Liquid
- Gas
- Plasma
Plasma is the only state of matter made up of charged particles.
Related Questions
The temperature at which a liquid becomes a solid is the: a. boiling point b. density c. freezing point d. solubility
What is the molality of a solution
The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules. These two molecules are —
What is the complete ionic equation for this reaction?2KOH(aq) + H2SO4(aq) → 2H20(1) + K2SO4(aq)O A. 2K+ + OH + H2SO4 → OH + 2H+ + K2SO4B. OH + 2H+ + 2H20()C. 2KOH + H2SO4 → 2H20 + K2SO4D. 2K+ + OH + 2H+ + SO42- → 2H20() + 2K+ + SO42-SUBMIT
Answers
Answers
Answers
1. All sodium (Na+) salts are soluble, so Na₂SO₄ will remain in solution.
2. Zinc (Zn2+) salts are generally soluble, except for zinc sulfide (ZnS) and zinc hydroxide (Zn(OH)₂). However, in this case, we are adding ZnCl₂ to the solution, which contains chloride (Cl-) ions. Chloride ions form soluble salts with most cations, including Zn2+. Therefore, ZnCl₂ will remain in solution.
3. Barium (Ba2+) salts are generally soluble, except for barium sulfate (BaSO₄) and barium carbonate (BaCO₃). However, in this case, we are adding Ba(CN)₂ to the solution, which contains cyanide (CN-) ions. Cyanide ions form insoluble salts with most cations, including Ba2+. Therefore, Ba(CN)₂ will precipitate out of solution as Ba(CN)₂ is not soluble.
b. Assuming complete precipitation of all insoluble compounds and that volumes are additive, we can calculate the molarity of each ion remaining in the solution.
For Na₂SO₄:
- Sodium (Na+) ion concentration: 2 * 0.100 M = 0.200 M
- Sulfate (SO₄2-) ion concentration: 0.100 M
For ZnCl₂:
- Zinc (Zn2+) ion concentration: 0.300 M
- Chloride (Cl-) ion concentration: 2 * 0.300 M = 0.600 M
For Ba(CN)₂:
- Barium (Ba2+) ion concentration: 0.200 M
- Cyanide (CN-) ion concentration: 2 * 0.200 M = 0.400 M
Therefore, the molarity of each ion remaining in the solution, assuming complete precipitation of all insoluble compounds and that volumes are additive, are as follows:
- Sodium (Na+) ion: 0.200 M
- Sulfate (SO₄2-) ion: 0.100 M
- Zinc (Zn2+) ion: 0.300 M
- Chloride (Cl-) ion: 0.600 M
- Barium (Ba2+) ion: 0.200 M
- Cyanide (CN-) ion: 0.400 M
Answers
2.5 * Vi = 0.50 * 100.0
2.5 Vi = 50
Vi = 50 / 2.5
Vi = 20 mL
hope this helps!
Answer:
20 milliliters
Explanation:
I don't cap
Answers
Since the number of moles of acid will not change, we can use this formula:
M1 V1 = M2 V2
Where M is the concentration of the acid in the solution
V1 = 10 mL
and
V2 = Vwater + 10
If we add an additional 5 mL of acid, the new concentration of the acid will be:
M = (M1 (5mL) + M2 (Vwater + 10mL)) / (5mL + Vwater + 10mL)
The concentration of acid in the new solution will increase.
Long story short, C is the answer.
Answers
The correct answer is A) They all have similar chemical properties.
Explanation:
In chemistry, the periodic table organizes visually the chemical elements. In this, elements are arranged according to different features. In the case of families of the elements, these refer to elements organized in the same column, for example, elements that are in column 18 form a family called noble gases.
These elements form a family because they have chemical properties; in the case of noble gases, this includes similar reactivity and physical features such as color and odor. Besides this, the elements of one family share a similar electron configuration but not the same number of electrons. This means, from the options given the one that identifies the elements that belong to a family is "They all have similar chemical properties".
Each set of elements has an equal number of electrons in the outer orbital. We refer to these as valence electrons. Each element's chemical characteristics are determined by its valence electrons. The correct option is A.
The elements in the same group or column of the periodic table are those whose chemical characteristics are the most comparable. The vertical groups of elements that have the same number of valence electrons and, consequently, comparable chemical characteristics are formed when the elements are arranged in order of atomic number.
Only when matter changes to become a completely other sort of matter can chemical characteristics be measured or observed. They consist of flammability, reactivity, and rusting potential.
Thus the correct option is A.
To know more about chemical properties, visit;
#SPJ6