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4 years ago

Which would be best categorized as heat transfer by convection?

Chemistry

2 answers:

Gnom [1K]4 years ago

8 0

Noodles rising and falling in a pot of boiling water

sleet_krkn [62]4 years ago

3 0

Noodles rising and falling in a pot of boiling water is heat transfer through convection.

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What is the purpose of writing Shorthand Electron Configuration Using Noble Gases?

stepan [7]

Noble gas electron configurations are easier to write because they are shorter then full electron configurations. They Noble gas shortcut electron configuration is a way of summarizing the information about the electrons of an atom.

(this is what I used)

6 0

3 years ago

2.2 liters at 20 degrees Celsius if the pressure doesn’t change what is the new temperature at 2.6 liters

Mamont248 [21]

Based on the question, it is evident that this question rests on the premise of Charle's Law, which essentially states that temperature is proportional to volume once pressure and mass remain constant.

Thus by Charle's Equation: $\frac{ V_{1} }{ T_{1} } = \frac{ V_{2} }{ T_{2} }$

Since the initial volume = 2.2 L; the initial temperature = 20 C; and the final volume = 2.6 L,
then V₁ = 2.2 L; T₁ = 20 C; V₂ = 2.6 L and what we would be
finding is T₂ (the final/new temperature)

Now, $T_{2} = \frac{(V_{2}) (T_{1}) }{V_{1}}$

⇒ $T_{2} = \frac{(2.6 L) (20 ^{o} C) }{2.2 L}$

⇒ $T_{2} = 23.64 ^{o}C$

∴ the new temperature is ≈ 23.6 °C

7 0

3 years ago

What is a "whale fall"

ira [324]

Answer:

its where a whale has died and the carcass of the whale sinks to the depth of the oceanic floor.

:) hope that helps

Explanation:

7 0

3 years ago

Hello- please answer

vlabodo [156]

Electric current is when electrons start to flow around a circuit. We use an ammeter to measure it and it is measured in amps
Potential difference (also called voltage) is how big the push on the electrons is. We use a voltmeter to measure it and it is measured in volts.
Resistance is anything that resists an electric current. It is measured in ohms”.
(Words: volts, amps, ohms, voltage, ammeter, voltmeter).

8 0

3 years ago

Are metal and non-metal elements typically ionically bonded? Explain.

victus00 [196]

Answer: Yes, metals and non-metals forms ionic bonds.

Explanation:

Ionic bond is defined as the bond which is formed by complete transfer of electrons from one atom to another atom.

The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

For Example: Formation of sodium chloride

Sodium is a metal and is the 11th element of periodic table having electronic configuration of $[Ne]3s^1$

To form $Na^{+}$ ion, this element will loose 1 electron.

Chlorine is a non-metal and is the 17th element of periodic table having electronic configuration of $[Ne]3s^23p^5$ .

To form $Cl^{-}$ ion, this element will gain 1 electron.

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the compound formed between sodium and chlorine atom is NaCl

Hence, metals and non-metals forms ionic bonds.

8 0

3 years ago