4 years ago

What is used to kill cavities

Chemistry

1 answer:

professor190 [17]4 years ago

8 0

A drill at the dentist

You might be interested in

If you collect 1.75 L of hydrogen gas during a lab experiment, when the room temperature is 23ºC and the barometric pressure is

Marianna [84]

Answer:

$n=0.0747mol$

Explanation:

Hello,

In this case, since we can consider hydrogen gas as an ideal gas, we check the volume-pressure-temperature-mole relationship by using the ideal gas equation:

$PV=nRT$

Whereas we are asked to compute the moles given the temperature in Kelvins, thr pressure in atm and volume in L as shown below:

$n=\frac{105kPa*\frac{0.009869atm}{1kPa}*1.75L}{0.082\frac{atm*L}{mol*K}*(23+273.15)K} \\\\n=0.0747mol$

Best regards.

6 0

3 years ago

Which is an aspect of the kinetic-molecular theory and can be used to explain the compressibility of plasmas?

siniylev [52]

Particles move independently of one another and are widely spaced

Hope that helps :)

8 0

4 years ago

Read 2 more answers

What do you think or know about atoms?

valkas [14]

Answer:

atoms I personally think and somewhat know that they are what mostly makes up everything and everyone but an interesting fact scientists say atoms can not touch

7 0

3 years ago

What volume of 9 M sodium hydroxide is required to make 500 mL of 0.1 M sodium hydroxide?

MArishka [77]

Answer:

6mL

Explanation:

V₁M₁ = V₂M₂

V₁ = V₂M₂/M₁

V₁ = (500)(0.1)/(9)

V₁ = 5.56mL ≈ 6mL

3 0

3 years ago

a neutral atom possesses an atomic number of 13 and an atomic mass of 27. Three electrons ar lost What region are they lost from

motikmotik

Al (1s²2s²2p⁶3s²3p¹) - 3e⁻ → Al³⁺ (1s²2s²2p⁶)

3s²3p¹

7 0

4 years ago