As the barium hydroxide solution is added to the solution of sulfuric acid, The conductivity would decrease because the concentration of ions decreases. Thus option 4 is correct.
Electric conductivity can be defined as the measure of the mechanism of electric current moves within a substance, greater the electrical conductivity within the material higher will be the current density.
The electrical conductivity is the ability of a substance that involve in conduction of electricity, the conductivity of a material is important for example the wire conductors need to let current to flow as easily.
When barium hydroxide dissolve in a solution called sulphuric acid, the Barium ions replace the hydrogen ions and an insoluble solid doesn't contribute ions.
Thus option 4 is correct.
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2.) Al^3+, O^2-
3.) Ca^2, ClO3-
4.) NH4+, P^3-
5.) Cu+, NO3-
Answer:
1.) NiSO₄; 2.) Al₂O₃; 3.) Ca(ClO₃)₂; 4.) (NH₄)₃P; 5.) CuNO₃
Step-by-step explanation:
We can use the criss-cross method to work out the formulas. The steps are
If we use this method, the formula for the compound formed from Na⁺, SO₃²⁻ becomes Na₂SO₃.
1.) Ni²⁺ + SO₄²⁻ ⟶ Ni₂(SO₄)₂ ⟶ NiSO₄
2.) Al³⁺ + O²⁻ ⟶ Al₂O₃
3.) Ca²⁺ + ClO₃⁻ ⟶ Ca(ClO₃)₂
4.) NH₄⁺ + P³⁻ ⟶ (NH₄)₃P
5.) Cu⁺ + NO₃⁻ ⟶ CuNO₃
Answer:
2.5 meter per second
Explanation:
momentum = mass multiplied by velocity
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Answer : A particle that orbits the nucleus in an atom is called an Electron
Hint : Electron, negatively charged particle orbiting the nucleus. Same number as protons in neutral atoms
I hope that's help !
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a gas that ignites a glowing splint is oxygen
The statement is true , oxygen is a gas which ignites a glowing splint.
A splint is a simple piece which is used in scientific laboratories. They are typically long, thin strips of wood of about 6 inches long and 1/4 inches wide. They are consumable and inexpensive. They are used for lighting burners , chemical identification of various gases .
For gases which are hard to distinguish , a glowing splint test is used for identification of gases. . These tests are useful for identifying whether the gas is oxidizing,flammable or chemically inert.Oxygen is one of the gases which can be identified using the splinter test as it is combustible.
For the test, the splint is lit and is allowed to burn for a fraction of seconds and then blown out as the tip is still hot it is introduced into the jar containing the oxygen gas and thus re-igniting the splinter.
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b. triple point.
c. lambda point.
d. freezing point.