What human activity has caused the Increase of CO2 in the atmosphere?

At what point does the radiation start to affect satellites in the atmosphere

Aleksandr-060686 [28]

After that have been up for a while thay are metal

6 0

2 years ago

What's difference between sigma and pi bond??

Aleksandr-060686 [28]

A triple bond is one sigma and two pi bonds. A sigma bond is your basic head-on covalent bond, with the bond in line with the bonding orbitals. You can only ever have one sigma bond between any two atoms. A pi bond is a covalent bond between orbitals perpendicular to the bond direction, usually p-orbitals (nevers)

7 0

2 years ago

True or false Liquid particles move faster than gas particles

givi [52]

Answer:

False

Explanation:

Gas particles move faster than liquid particles as they are more spread apart in the atmosphere

8 0

2 years ago

Read 2 more answers

A gas mixture consists of 60.0% Ar, 30.0% Ne, and 10.0% Kr by volume. If the pressure of this gas mixture is 80.0 kPa, what is t

Nat2105 [25]

Answer: The partial pressure of Argon , Neon and krypton are 48 kPa , 24 kPa and 8 kPa respectively.

Explanation:

According to Raoult's Law , the partial pressure of each component in the solution is equal to the total pressure multiplied by its mole fraction. It is mathematically expressed as

$p_A=x_A\times P_{total}$

where, $p_A$ = partial pressure of component A

$x_A$ = mole fraction of A

$P_{total}$ = total pressure

mole fraction of Ar = $\frac{\text {Moles of Ar}}{\text {total moles}}=\frac{60.0}{60.0+30.0+10.0}=0.6$

$p_{Ar}=0.60\times 80.0kPa=48kPa$

mole fraction of Ne = $\frac{\text {Moles of Ne}}{\text {total moles}}=\frac{30.0}{60.0+30.0+10.0}=0.30$

$p_{Ne}=0.30\times 80.0kPa=24kPa$

mole fraction of Kr = $\frac{\text {Moles of Kr}}{\text {total moles}}=\frac{10.0}{60.0+30.0+10.0}=0.10$

$p_{Kr}=0.10\times 80.0kPa=8kPa$

4 0

3 years ago

In 4/2HE, what does the number 4 indicate?

11Alexandr11 [23.1K]

The number 4 in the 4/2He indicates the atomic mass number of helium.

Answer: Option 3

Explanation:

The elements present in periodic table generally represented as $X_{Z}^{A}$ . Here X will be the element in the periodic table, A is the atomic mass number of the element X and Z is the atomic number of the element X.

So, the number 4 is the atomic mass number of He and He-4 is the stable isotope of helium which can also be termed as alpha particle.

Mass number = number of protons + neutrons count.

Thus the number 4 denotes the Helium's atomic mass number.

6 0

3 years ago