All categories

3 years ago

Plzzz follow mee...........

Chemistry

1 answer:

Annette [7]3 years ago

6 0

All right, I’m going!!!!

You might be interested in

How many molecules of CO2 are in 132.03 grams of CO2 ?

Damm [24]

Answer: 3.00 molecules

Explanation:

Given that:

Mass of CO2 = 132.03 grams

Number of molecules of CO2 = ?

Molar mass of CO2 = ?

For the molar mass of CO2: Atomic mass of Carbon = 12; Oxygen = 16

= 12 + (16 x 2)

= 12 + 32 = 44g/mol

Apply the formula:

number of molecules = (mass in grams/molar mass)

N = (132.03 grams/44g/mol)

N = 3.00 molecules

Thus, there are 3.00 molecules of CO2 in 132.03 grams of CO2.

3 0

2 years ago

Element "Z" has 2 naturally occurring isotopes with the following masses and natural abundances:

fiasKO [112]

Answer: the atomic Mass of Z is 46.26

Explanation:Please see attachment for explanation

3 0

2 years ago

I need help on either question you can answer. Thank you god bless

Stels [109]

<h3>Further explanation</h3>

1.Atomic Number (Z) = Mass Number (A) - Number of Neutrons

neutrons = mass number-atomic number

Atomic mass Cl-37= 17

Mass number Cl-37=37

Neutrons = 37-17=20

2. Mass atom X = mass isotope 1 . % + mass isotope 2.%...

$\tt atomic~mass~X=0.0224\times 88+0.7832\times 90+0.1944\times 91=90.1$

3. The energy in one photon can be formulated as

$\large{\boxed{\bold{E\:=\:h\:.\:f}}}$

f = c / λ, so :

$\tt E\approx f\approx \dfrac{1}{\lambda}$

Energy is directly proportional to frequency and inversely proportional to the wavelength

So, as the frequency of photon increases, the energy of photon increases

4. Based on answer number 3 :

A. The wavelength becomes longer, and the energy decreases

7 0

2 years ago

Electrons and the Periodic Table

White raven [17]

Answer:

The third one

Xej6s?4fl45d1°6p?

6 0

2 years ago

E. Top soil is fertile reason

Lady_Fox [76]

Answer:

Hello

Topsoil consists of most weathered mineral and organic material. Biological agents are also responsible for the breakdown of complex organic matter which releases simple nutrients. This process of mineralisation make soil fertile.

Explanation:

4 0

2 years ago

Plzzz follow mee...........​

Plzzz follow mee...........