All categories

3 years ago

Which of the following atoms will not react with water

Chemistry

1 answer:

Sati [7]3 years ago

3 0

Answer:

Among Na ,K , Pb , Li , The atom which does not react with water is :

Explanation:

Li : Reacts slowly with water

Na ,K : Reacts vigorously with water

Pb : It does not reacts with water because :- Pb oxidize in presence of atmospheric oxygen to form lead oxide (PbO) . this PbO form a layer over the surface of Pb and make it inert to water.

You might be interested in

The temperature at which there is no kinetic energy in an object . Is?? ASAP

Hatshy [7]

Zero hope this helps

7 0

3 years ago

Read 2 more answers

Why would an atom emit particles or waves from its nucleus?

Neko [114]

Answer:

It’s A non of these

Explanation:

5 0

2 years ago

The volume (in L) that would be occupied by 5.00 mols of 02 at STP is

crimeas [40]

Answer : The volume of oxygen at STP is 112.0665 L

Solution : Given,

The number of moles of $O_2$ = 5 moles

At STP, the temperature is 273 K and pressure is 1 atm.

Using ideal gas law equation :

$PV=nRT$

where,

P = pressure of gas

V = volume of gas

n = the number of moles

T = temperature of gas

R = gas constant = 0.0821 L atm/mole K (Given)

By rearranging the above ideal gas law equation, we get

$V=\frac{nRT}{P}$

Now put all the given values in this expression, we get the value of volume.

$V=\frac{(5moles)\times (0.0821Latm/moleK)\times (273K)}{1atm}=112.0665L$

Therefore, the volume of oxygen at STP is 112.0665 L

3 0

2 years ago

What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency 1.0×1015Hz?

Anvisha [2.4K]

In order to emit electrons, the cesium will have to absorb photons. Each photon will knock out one electron by transferring its energy to the electron. Therefore, by the principle of energy conservation, the energy of the removed electron will be equal to the energy of the incident photon. That energy is calculated using Planck's equation:

E = hf

E = 6.63 x 10⁻³⁴ * 1 x 10¹⁵
E = 6.63 x 10⁻¹⁹ Joules

The electron will have 6.63 x 10⁻¹⁹ Joules of kinetic energy

3 0

3 years ago

At sea level the average heigh of mercury in barometer is

liubo4ka [24]

Although 1013.25 mb (760 mm Hg) is considered to be the standard atmospheric pressure at sea level, it does not mean that the pressure at this level has this value, actually this being 1011 mb.

4 0

3 years ago

Which of the following atoms will not react with water​

Which of the following atoms will not react with water