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Elenna [48]
3 years ago
15

PLEASEEE HELP!!!

Chemistry
2 answers:
PIT_PIT [208]3 years ago
6 0

i believe it would be B '' tetrahedral compound ''

yulyashka [42]3 years ago
5 0

Answer : The correct option is, (B) Tetrahedral compound

Explanation :  

Formula used:

\text{Number of electrons}=\frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

First we have to determine the hybridization of the CH_4 molecule.

\text{Number of electrons}=\frac{1}{2}\times [4+4]=4

The number of electrons are 4 and there is no lone pairs present on the central carbon atom that means the hybridization will be sp^3 and the electronic geometry of the molecule will be tetrahedral.

Hence, the shape of the given compound CH_4 is, tetrahedral.

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alukav5142 [94]
The answer is: To see how fast hydrogen peroxide decomposes into water and oxygen.
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8 0
3 years ago
Read 2 more answers
Please help!!
Olegator [25]
Molarity =  Moles/Liter

Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol

multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl

over 1 Liter is just 1.3 M NaCl
Hope this helps!
8 0
3 years ago
A container of oxygen with a fixed volume has a pressure of 13.0 atm at a temperature of 20 °C. What will the pressure of the ox
Norma-Jean [14]

Given:

P1 = 13.0 atm

T1 = 20 °C

T2 = 102 °C

Required:

P2 of oxygen

Solution:

At constant volume, we can apply Gay-Lussac’s law of pressure and temperature relationship

P1/T1=P2/T2

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P2 = 66.3 atm

The answer is not in the choices given.

6 0
3 years ago
Which heats up the fastest? treated glass, aluminum, stainless steel, or copper?
GrogVix [38]

Answer:

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8 0
2 years ago
The density of water is 1.00 g/ml at 4°c. how many water molecules are present in 2.36 ml of water at this temperature?
spin [16.1K]

Mass of 1 ml of water 1 g as density of water 1.00 g/ml at 4° C. So, mass of 2.36 ml of water \frac{1}{2.36} g= 0.423 g.

Molecular mass of water is 18 g which indicates 18 g water contains 6.023 X 10^{23} number of water molecules. So, 0.423 g of water contains \frac{6.023 X 10^{23} X 0.423 }{18}  g = 0.141 X 10^{23} number of water molecules= 1.41 X 10^{22} number of water molecules.

5 0
3 years ago
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