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3 years ago

How are tectonic plates related to earthquakes and volcanoes?

Chemistry

1 answer:

patriot [66]3 years ago

8 0

Answer

Tectonic plates are parts of the earth's crust. There are cracks in these plates that allow magma to seep through and build-up which creates volcanic eruptions. Volcanos themselves are created by the earth's plates pushing against each other and slowly, over time, rising to create these large raises in the crust. Earthquakes are caused by these plates creating friction against one another until they forcefully overlap or rip apart, hence the shaking effect during an earthquake.

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you need to make 1.5L of 1.0M HCl from a stock solution of 12.0M HCl. How many L of the stock solution do you need?

liraira [26]

Answer:

125 ml of HCl

Explanation:

The molarity of the stock solution to determine how many milliliters would contain 1.5 moles of HCl. Since a concentration of 12.0 mol/L means that you get 12.0 moles of hydrochloric acid per liter of solution,

Concentration of required HCl (C1) = 1.0M

Volume of required HCL (V1) = 1500 ml

Concentration of stock HCl (C2) = 12M

Volume of stock HCL (V2) = ?

C1V1 = C2V2

V2 = C1V1/C2 = 1*1500/12 = 125 ml

7 0

3 years ago

Gimme the sandmeyer's reaction!!!

iren2701 [21]

Answer:

The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as reagents or catalysts. It is an example of a radical-nucleophilic aromatic substitution.

4 0

3 years ago

A 1.44-g sample of an unknown pure gas occupies a volume of 0.335 L at a pressure of and a temperature of 100.0°C. The unknown g

Zepler [3.9K]

Answer:

Xenon

Explanation:

Step 1: Given data

Mass (m): 1.44 g

Volume (V): 0.335 L

Pressure (P): 1.00 atm (I looked it up)

Temperature (T): 100.0°C

Step 2: Convert the temperature to Kelvin

K = °C + 273.15 = 100.0°C + 273.15 = 373.2 K

Step 3: Calculate the number of moles (n)

We will use the ideal gas equation.

P × V = n × R × T

n = P × V / R × T

n = 1.00 atm × 0.335 L / (0.0821 atm.L/mol.K) × 373.2 K

n = 0.0109 mol

Step 4: Calculate the molar mass of the gas

M = 1.44 g / 0.0109 mol = 132 g/mol

Step 5: Identify the gas

The gas with a molar mass of about 132 g/mol is xenon.

8 0

4 years ago

How does the presence of hcl affect the charges on the complexes?

FrozenT [24]

Hydrochloric Acid (HCl) is a strong acid when it is present in the concentrated form but when it is dissolved in water ( $H_2O$ ) the atoms of this compound dissociates into its respective ions as shown below:

$HCl(aq.) + H_2O(aq.) \rightarrow H_3O^+(aq.) + Cl^-(aq.)$

When we add HCl to any complex in its concentrated form the complex does not react at all but when its diluted to 6M and is kept for many hours, the complex reacts slowly. For eg:

$[Co(NH_3)_6]^3^+(aq.) + HCl(aq.) \rightarrow [Co(NH_3)_5Cl]^2^+(aq.) + NH_4^+ (aq.)$

As seen from the above reaction it can be seen the positive charge on the complex is reduced by 1 unit because one $Cl^-$ ion gets attached to the centre metal atom, therefore we can conclude that the charge on complex gets reduced by 1 unit when HCl reacts with the complex.

7 0

3 years ago

you have a friend who is using a recipe for flat from american cookbook you notice that he set your over temperature at 175F° wh

tresset_1 [31]

Answer:

I will give them advice, that do the power of flame low....

Explanation:

thanks.

7 0

3 years ago