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4 years ago

Imagine you are digging a hole to the center of the earth. In which order would dig through them?

Chemistry

2 answers:

Romashka [77]4 years ago

7 0

Crust, Upper Mantle, Lower Mantle, Outer Core, Inner Core

nadezda [96]4 years ago

4 0

The order in which you would dig through the layers is

crust → upper mantle → lower mantle → outer core → inner core

See the image below.

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Is methanol ionic,metallic or covalent bonding

Readme [11.4K]

Answer:

methanol is a carbon compound which is formed by covalent bonding .

3 0

3 years ago

18. Suggest an explanation for the observations that ethanol, C2H5OH, is completely miscible with water and that ethanethiol, C2

nydimaria [60]

Answer:

Ethanol is completely miscible due to presence of Hydrogen bonding.

Ethanethiol is partially miscible due to absence of Hydrogen Bonding.

Explanation:

The miscibility of liquids depend upon the intermolecular interactions between the two liquids. The stronger the intermolecular interactions the more miscible will be the liquids.

Among the two given examples, Ethanol is more miscible in water because it exhibits hydrogen bonding which is considered the strongest intermolecular interaction. Hydrogen bonding occurs when the hydrogen atom is bonded to more electronegative atoms like Fluorine, Oxygen and Nitrogen. In this way the hydrogen atom gets partial positive charge and the electronegative atom gets partial negative charge. Hence, these partial charges results in attracting the opposite charges on other surrounding atoms.

While, in case of Ethanethiol the hydrogen atom is not bonded to any high electronegative atom hence, there will be no hydrogen bonding and therefore, there will be less interactions between the neighbour atoms.

6 0

4 years ago

A 15.0 mL solution of Sr(OH)2 is neutralized with 38.5 mL of 0.350 M

Darya [45]

Answer:

Molarity of Sr(OH)₂ = 0.47 M

Explanation:

Given data:

Volume of Sr(OH)₂ = 15.0 mL

Volume of HCl = 38.5 mL (0.0385 L)

Molarity of HCl = 0.350 M

Concentration/Molarity of Sr(OH)₂ = ?

Solution:

Chemical equation:

Sr(OH)₂ + 2HCl → SrCl₂ +2H₂O

Number of moles of HCl:

Molarity = number of moles/ volume in L

0.350 M = number of moles/0.0385 L

Number of moles = 0.350 mol/L× 0.0385 L

Number of moles = 0.0135 mol

Now we will compare the moles of HCl with Sr(OH)₂.

HCl : Sr(OH)₂

2 : 1

0.0135 : 1/2×0.0135 = 0.007 mol

Molarity/concentration of Sr(OH)₂:

Molarity = number of moles / volume in L

Molarity = 0.007 mol /0.015 L

Molarity = 0.47 M

7 0

3 years ago

7. What is the voltage when the resistance is 6 ohms and the current is 8 amps?

vivado [14]

Answer:

48 volts

Explanation:

Voltage (E) = Current (I) x Resistance (R), or E = IR.

4 0

3 years ago

Read 2 more answers

In what organelle or membrane are triacylglycerols synthesized and fatty acids elongated?.

Amiraneli [1.4K]

1 - In what organelle or membrane are triacylglycerols synthesized and fatty acids elongated?

A - Lysosomes

B - Peroxisome

C - Endoplasmic reticulum

D - Ribosomes

E - Nucleus

The answer is Endoplasmic reticulum

5 0

2 years ago