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damaskus [11]
2 years ago
11

Which chemical formal shows an ionic compound? A. CO2 B.N 2 O C.NaCI D.C6 H12 O6

Chemistry
1 answer:
KonstantinChe [14]2 years ago
4 0

Answer:

B

N2O

Explanation:

maybe

d can also be lol

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A graduated cylinder contains 17.5 ml of water. When a metal cube is placed onto the cylinder, it’s water level rises to 20.3 ml
MrRa [10]

Answer:

20.3-17.5=2.8ml  1ml=1cm3   vol= 2.8cm3

Explanation:

4 0
3 years ago
Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A solution of 6.80 g of lauryl alco
natka813 [3]

Answer:

The approximate molar mass of lauryl alcohol is 174.08 g/m

Explanation:

An excersise to apply the colligative property of Freezing-point depression.

This is the formula: ΔT = Kf . m

First of all, think the T° of fusion of benzene → 5.5°C

ΔT = T° pure solvent - T° fusion solution

Kf for benzene: 5.12 °C/m

5.5°C - 4.5°C = 5.12 °C /m  . m

1°C /  5.12 m /°C = m

0.195 m = molality

This moles of lauryl alcohol, solute, are in 1 kg of benzene, solvent.

I have to find out in 0.2 kg.

1 kg sv ____ 0.195 moles solute

0.2 kg sv ____ (0.195 . 0.2)/1 = 0.039 moles solute

The mass for these moles is 6.80 g, so if I want to know the molar mass, I have to divide mass / moles

6.80 g/ 0.039 moles = 174.08 g/m

5 0
3 years ago
If a shell can hold a maximum of 32 electrons, what is the value of n?
olga2289 [7]
<span>Begin by classifying which energy level, and indirectly principal quantum number, n, resembles to the N shell. no. of orbitals =n2 In your case, the fourth energy level will contain n=4⇒no. of orbitals= 4^2=16 The number of subshells is given by the principal quantum number. no. of subshells=n In your case, the fourth energy level will have no. of subshells = 4 this is the answer to check: the fourth energy shell will can hold a thoroughgoing of no. of electrons=2⋅42=32 e−</span>
4 0
3 years ago
Read 2 more answers
If you increase the force on an object, its acceleration increases. True or false
lions [1.4K]

Answer:

true

Explanation:

from Newton's second law of motion ,we can understand that acceleration of a body is directly proportional to the force applied on it and inversely proportional to its mass ,so as the force applied increase,the acceleration also increases

8 0
2 years ago
Balance each of the following examples of heterogeneous equilibria and write each reaction quotient, Qc:(b) SnO₂(s) + H₂(g) ⇄ Sn
I am Lyosha [343]

When we balance this equation

       SnO₂(s) + H₂(g) ⇄ Sn(s) + H₂O(g)

We will get

      SnO₂(s) + 2H₂(g) ⇄ Sn(s) + 2H₂O(g)

Solution:

Balancing this equation

SnO₂(s) + H₂(g) ⇄ Sn(s) + H₂O(g)

We have to balance the number of O

SnO₂(s) + H₂(g) ⇄ Sn(s) + 2H₂O(g)

We have to balance the number of H

SnO₂(s) + 2H₂(g) ⇄ Sn(s) + 2H₂O(g)

We will get the balanced equation

SnO₂(s) + 2H₂(g) ⇄ Sn(s) + 2H₂O(g)

The reaction quotient will be

     Qc = [product] / [reactant]

     Qc ​= [Sn(s) + H₂O(g)] / [SnO₂(s) + H₂(g)]

To learn more click the given link

brainly.com/question/17144280

#SPJ4

8 0
1 year ago
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