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4 years ago

What statement best describes solution

Chemistry

1 answer:

kirza4 [7]4 years ago

6 0

Solution is a mixture of solvent and solute. Which dissove completely.

Examples of Solvent - Water

Solute - Salt

Solution - Salt solution

Together when the combines, it became a solution

*** It have to dissolve completely. Particles cannot be left in the cup(container). The only way to seprate them is to use EVAPORATION METHOD.

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Compose an essay on hydroelectric power of at least 400 words.

MrRissso [65]

Answer:

Hydropower plants get their energy from falling water to generate electricity. A generator then converts the mechanical energy from the turbine into electrical energy. Hydroplants range in size from "micro-hydros" that power only a few homes to giant dams that provide electricity for millions of people. A hydroelectric dam is one of the major components of a hydroelectric facility. A dam is a large, man-made structure built to contain some body of water. In addition to construction for the purpose of producing hydroelectric power, dams are created to control river flow and regulate flooding. Hydropower is fueled by water, so it's a clean fuel source, meaning it won't pollute the air like power plants that burn fossil fuels, such as coal or natural gas. Hydroelectric power is a domestic source of energy, allowing each state to produce their own energy without being reliant on international fuel sources. However, it can also cause environmental and social threats, such as damaged wildlife habitat, harmed water quality, obstructed fish migration, and diminished recreational benefits of rivers.

Explanation:

5 0

3 years ago

Read 2 more answers

13. why do sodium and chloride ions in the extracellular fluid and potassium ions in the intracellular fluid behave as though th

Whitepunk [10]

NaCl is the primary nonpenetrating solute of the ECF. Its ions carry a charge, making it difficult for them to freely pass through the phospholipid bilayer of the cell membrane. While some Na+ does leak into cells, Na+-K+-ATPases pump Na+ out at roughly the same rate, making this solute functionally impermeable

Osmolarity is a measure of the concentration of osmotically active particles in a solution. It is sometimes called a “colligative” property of the solution by chemists because it depends on the number of particles in the volume of the solution rather than the identity of the particles.

One mole of any substance has Avogadro’s number (6.02 × 1023) of particles.

Molarity (M) of a solution is an expression of concentration, with one mole of solute per liter of solution.

the molarity of a solution is not always the same as the solution’s osmolarity. This is because some solutes, such as ionic compounds like NaCl, dissociate into separate particles (e.g., Na+ and Cl−) when dissolved in water.

The formula for osmolarity is:

osmolarity = molarity * dissociation factor

The dissociation factor for an ideal solution of NaCl is 2, given that the compound is made up of 2 ions.

Solutes that enter a cell by any means are said to be “penetrating” solutes. Solutes that do not enter the cell are said to be “nonpenetrating” solutes.

NaCl is the primary nonpenetrating solute of the ECF. Its ions carry a charge, making it difficult for them to freely pass through the phospholipid bilayer of the cell membrane. While some Na+ does leak into cells, Na+-K+-ATPases pump Na+ out at roughly the same rate, making this solute functionally impermeable.

For more information on osmosis click on the link below:

brainly.com/question/11534932

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4 0

2 years ago

A student has a mixture of salt and iron filings.

eduard

Answer:

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Explanation:ss

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7 0

3 years ago

In a different experiment, a student places a piece of pure Ba(s) in a beaker containing 250.mL of 6.44MHCl(aq) and observes tha

kkurt [141]

Answer: The Ionization energy of Barium is lower and hence it can lose its electrons easily.

Explanation:

Ionization energy is defined as the energy required to remove an electron from an isolated gaseous atom. It is represented as $E_i$

This energy will be higher for fully filled and half-filled electronic configuration than partially filled electronic configuration. This is so because half filled and fully filled configurations are stable.

Magnesium is the 12th element of the periodic table having electronic configuration of = $[Ne]3s^2$

Barium is the 56th element of the periodic table having electronic configuration of $[Xe]6s^2$

Both magnesium and barium belong to the same group as they have similar valence electrons. But as Barium is larger in size, the valence electrons lie farther from the nucleus and lesser energy is required to remove the electron and thus ionization energy will be lower for barium and thus will be more reactive.

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4 years ago

desides the hurricane force winds and roads filling with snow, what other hazards do you think the blizzard caused?

miskamm [114]

A blizzard will cause white out conditions so you can't see, it will also cause black ice so a person or vehicle will slip. The heavy snow will hang on wires and branches causing them to break.

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4 years ago