Which law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constant?

Answer:

Hypervitaminosis is a serious health issue which is associated with the accumulation of the vitamins in the body. This problem is mainly associated with the fat soluble vitamins.

This is because the fat soluble vitamins gets accumulated in the fatty cells of the body. Whereas, in case of water soluble vitamins it gets dissolved in water and gets eliminated from the body.

So, there is very rare chance that the water soluble vitamin not cause hypervitaminosis.

Final answer:

Hypervitaminosis does not typically occur with water-soluble vitamins because excess amounts are excreted in urine rather than stored in the body, preventing a harmful build-up that could lead to toxicity.

Explanation:

Hypervitaminosis is indeed a health threat associated with excessive intake of fat-soluble vitamins, but water-soluble vitamins do not typically pose this risk because of how our bodies process them. Fat-soluble vitamins, which include vitamins A, D, E, and K, can be stored in our bodies, specifically in our liver and fat tissues. Therefore, consuming them in excessive amounts can lead to accumulation, resulting in toxic effects known as hypervitaminosis.

On the other hand, water-soluble vitamins, which include vitamins B and C, cannot be stored in the body for a long duration. Any excess intake of these vitamins is typically excreted in urine, preventing a harmful build-up in the body, thus reducing the risk of hypervitaminosis.

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A candle placed between two plane mirrors inclined at an angle of 45 degrees will form 7 images. This is due to multiple reflections between the mirrors. The number of images depends on the angle between the mirrors.

In physics, when a candle is placed between two plane mirrors inclined at an angle of 45 degrees, 7 images will be formed. This happens due to multiple reflections between the mirrors. As per the formula for number of images n = 360/θ - 1, where θ is the angle between the mirrors, for an angle of 45 degrees, we get n = 360/45 - 1 = 7. The actual number of images can be less than this if they overlap each other.

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Answer: D. neutralization

Explanation:

1. Substitution reaction is defined as the reaction in which one atom replaces the other atom from the compound.

2. Saponification is a reaction in which fatty acids are made to react with alkalis to form sodium salt of fatty acids called as soaps.

3. Ionization is a type of chemical reaction in which a substance ionizes when dissolved in water.

4. Neutralization is a type of chemical reaction in which an acid reacts with base to produce salt and water.

TRUE

Does the white blood cell count decrease when fighting an infection?

This is because your body releases more of these cells to fight the infection. However, if you have certain illnesses such as HIV or cancer, your white blood cell count can drop to very low levels. Taking medicines that weaken your immune system may reduce your WBC.

it produces antibodies to fight bacteria, viruses, and other potentially harmful invaders. Neutrophils. They kill and digest bacteria and fungi. They are the most type of white blood cells and are the first line of defense in the event of an infection.

Adults have a low white blood cell count of less than 4,000 cells per microliter of blood. Low white blood cell counts can be an indicator of certain medical conditions, including lupus, rheumatoid arthritis, vitamin deficiency, or side effects of cancer treatment.

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The amount of magnesium nitrate are formed from the 5.5 moles of the nitric acid in grams are 407.8 g.

The reaction is as :

2HNO₃  +   Mg(OH)₂  ---->  Mg(NO₃)₂  +  2H₂O

The number of moles of nitric acid = 5.5 moles

2 moles of the nitric acid = 1 mole of the magnesium nitrate

The number of moles of nitric acid = 5.5 / 2 mol

The number of moles of nitric acid = 2.75 mol

The grams of the magnesium nitrate = moles × molar mass

The grams of the magnesium nitrate = 2.75 mol × 148.3 g/mol

The grams of the magnesium nitrate = 407.8 g

Therefore, the mass of the magnesium nitrate is 407.8 g.

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The action that could slow a chemical reaction rate is adding more of a substance to a mixture. The answer is letter d. It does not give time for the rest of the reactants to be consumed because you are adding more of it causing to slow the reaction.