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Miscellaneous

The Miscellaneous category is for a wide variety of questions and answers that we find important, but that have not found a home in one of our specific categories.

14,596 Questions

What is the formula for potassium selenite?

The chemical formula for potassium selenite is K2SeO3. It contains one potassium ion (K+) and one selenite ion (SeO3^2-), which combine in a 2:1 ratio.

1-bromopropane and 1-chloropropane were put into a non polar column which one has the shorter retention time?

Since a non-polar column will most effectively elute a non-polar sample, then as the polarity of the sample increases, the retention time would increase. 1-bromopropane is less polar than 1-chloropropane due to chlorine's high electronegativity therefore 1-bromopropane would have the shorter retention time.

Why can't we burn our trash waste ie plastic materials etc what is the by product?

Burning plastic waste releases toxic chemicals and pollutants into the air, soil, and water, harming the environment and human health. The byproducts of burning plastic include greenhouse gases, dioxins, and other harmful chemicals that contribute to air pollution and climate change. It is better to reduce, reuse, and recycle plastic waste to minimize its negative impact on the environment.

What gas can you not smell taste or see?

carbon monoxide

propane gas is oderless but an oder was added to it so it could be sold commericially without endangering people.

Nitrogen, Oxygen, Carbon Dioxide, Carbon Monoxide, Xenon etc...

CLUE: you're breathing it now!!!

Can a bomb be made out of toothpaste?

You've had your tube of toothpaste confiscated by Airport Security, haven't you?

I don't know , but I suspect that the security staff are aware that the tootpaste could be emptied out and other stuff put in - Acme's wondeful "Flash-Bang" powder, for example. That stuff would blow a coyote right out of an airplane - usually over a canyon.

Hmmm. Someone wants to deal with a tougher than normal plaque problem?

A glass of cold water declamation?

A Glass of Cold Water

Everybody calls me young, beautiful, wonderful. Am I? Look at my hair, my lips, my red rosy cheeks and a pair of blinkering eyes.

I remember, somebody says that I look like my mother . But that when she was young.

Now, I am much lovelier than she is. I'm a mortal Venus. Oops! What time is it? I must get ready for the party!

Beep-beep…!A-huh! Here they are! Yes, I'm coming!

"Child, are you still there?"

"Hmp! That's my mama"

"Child, are you still there? Will you please get me a glass of cold water?"

"Mama, I'm in a hurry!"

"Please child, try to get me a glass of cold water."

"Mama, please, try to get it on your own."

"Please child, try to get me a glass of cold water!"

At the party, I danced and danced the whole night.

You see, I can't leave the party at once. I have to danced with everybody who proposed to me. At last, the party is over. I'm very tired. Very, very tired.

So, I went home to tell mama what happened.

"Mama, I'm home! It's very quiet. "Mama, I'm home!" Nobody answers.

Where is she? I look for her in the sala, but she's not there. Where is she? A-huh! In the kitchen!

I saw my mama, lying down on the floor, dead. With a glass on her hand. I remember, she tried to get it.

Oh, God, just for the glass of cold water! Mama! Mama! Oh, Mama!

Would you obtain the exact same result if you dropped the ball from the same height several times?

No, the exact height the ball reaches after being dropped may vary slightly due to factors such as air resistance, imperfections in the ball or the surface it lands on, and the precision of the drop height. However, the result should be fairly consistent if the conditions are kept constant.

What is the Difference in chemical formula between ice and water?

The chemical formula for ice and water is the same, which is H2O. The difference lies in the arrangement of molecules: in ice, water molecules are arranged in a rigid and ordered structure, while in water, the molecules are more loosely arranged and can move freely.

What happens to silver when it gets old?

depends on how it's kept. if polished, cleaned regularly it stays looking just like silver.

if not kept up, it tarnishes and turns a dark color.

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Silver (Ag) begins bonding with sulfur (S) in the air and causes the tarnished blacked color. When the sulfur is removed the luster of the silver returns and is again reactive to sulfur once more.

Will fake rock water well covers protect from freezing?

Fake rock water well covers may provide some protection from freezing temperatures by insulating the well and helping to retain heat. However, they may not provide complete protection, especially in extremely cold climates. It's important to take additional measures, such as using heat tape or a well cover specifically designed for winter weather, to prevent freezing of a water well.

What is an example of a rigid material?

it's when you give an example of a material that is rigid

How is the magnitude of a vector a scalar?

A vector magnitude is the number that is associated to the length of the vector.

Give the equation of reduction of monocarboxyclic acid?

1) Reduction of a moncarboxylic acid results in a primary alcohol.

One needs a reducer for this. Common reducers are lithium aluminum hydride (LiAlH4) and other hydrogen containing compounds. Even hydrogen itself is a reducer but not a very effective one. Nonetheless I take H2 as a reducer.

R-COOH + H2 -> R-COH + H2O

Example:

CH3-COOH +H2-> CH3-COH + H2O

(acetic acid) (ethanol)

2)Oxidation of a monocarboxylic acid gives CO2 and H20 as products.

CH3-COOH + 2 O2 -> 2 CO2 +2 H2O

How do you pick a lock with a hairclip?

me as a person who loves to do things people think are impossible all you have to do is make sure when you insert it goes completely in the lock until it wont go any further and get enough bobby pins to make out the shape of the key and tape them in that shape then try to open the door if it doesn't work you did it wrong

What is 58.0W?

58.0W refers to 58.0 watts, which is a unit of power measuring the rate of energy transfer or the rate at which work is done. It is commonly used to quantify the power consumption of electronic devices or the output of light bulbs.

What are shear pins?

Shear pins are mechanical fasteners designed to break or shear off when a certain amount of force is applied to them. They are commonly used in machinery and equipment to protect components from damage in the event of an overload or jam. When a shear pin breaks, it helps prevent further damage by sacrificing itself in place of more critical components.

How do you separate wax from crude oil?

Wax can be separated from crude oil through a process called solvent dewaxing, where a solvent is used to dissolve the wax in the crude oil. The solution is then cooled, causing the wax to solidify and separate from the oil. The wax can then be filtered out from the oil.

How much heat is lost through your head?

The myth that most body heat is lost through the head has been debunked. Heat loss through the head is similar to any other part of the body if exposed. In cold conditions, it's important to properly cover all body parts to minimize heat loss.

What is the spike on the top of an umbrella called?

The spike on the top of an umbrella is called a finial. It helps to secure the umbrella fabric and frame in place.

How do you remove dry blood on clothes?

To remove dry blood on clothes, soak the stained area in cold water for 15-30 minutes. Then, gently scrub the stain with a mixture of mild detergent and water. Wash the garment as recommended on the care label. Repeat the process if necessary.

What are outgoing waves called?

Outgoing waves are often referred to as radiation or emittance. These waves carry energy away from a source and contribute to the overall propagation of energy in the surrounding environment.

What is the formula for phosphorus sulfide?

The chemical formula for phosphorus sulfide is P4S10. It is composed of four phosphorus atoms and ten sulfur atoms bonded together.

What is the formula for nickel II hydroxide?

The molecular formula for Nicken II Hydroxide is Ni(OH)2

Type of energy that is greatest at the bottom of a swing's path?

Potential energy is greatest at the bottom of a swing's path. This is due to the height of the swing providing more gravitational potential energy that is converted to kinetic energy as the swing moves upward.

Why don't eyeglasses fog up when you walk inside backwards?

When you walk inside backwards, there is less warm, moist air coming directly from your breath hitting the glasses due to the direction you are facing. This reduces the chance of condensation forming on the lenses, keeping them from fogging up.