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3 years ago

Glaciers also _____ materials in new places when they melt.

Chemistry

1 answer:

natali 33 [55]3 years ago

8 0

Deposits

Explanation:

Glaciers also deposits materials in new places when they melt.

Glaciers are made up of snow flakes that has compressed through time.
In temperate and polar regions where they are prevalent, they are powerful agents of denudation.
They can erode, transport and deposit earth materials in places.
When a glacier retreats by melting, it deposit some of its materials in new places.
Most of this sediment are called tillites.
They are made up of unsorted materials of different size grains.

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Metamorphic rock brainly.com/question/869769

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7 0

3 years ago

What type of reactive intermediate is formed in the reaction of an alkene with aqueous acid to give an alcohol?

Mariana [72]

Answer:

The intermediate is carbocation.

Explanation:

The reaction of alkene with an acid to give alcohol is an electrophilic addition reaction.

In electrophilic reaction, the alkene is being attacked by an alkene.

in case of aqueous acid reaction with alkene , the electrophile is [H⁺].

When the proton attacks the alkene it generates carbocation.

The carbocation generated is formed based on stability of carbocation.

The mechanism is shown in the figure.

5 0

3 years ago

Calculate the change in enthalpy for the following reaction, using the bond enthalpy data provided below. (Note: you may round t

aliina [53]

Answer:

-514 kJ/mol

Explanation:

The bond enthalpy which is also known as bond energy can be defined as the amount of energy needed to split one mole of the stated bond. The change in enthalpy of a given reaction can be estimated by subtracting the sum of the bond energies of the reactants from the sum of the bond energies of the products.

For the given chemical reaction, the change in enthalpy of the reaction is:

Δ $H_{rxn} =$ [2(409) + 4(388) + 3(496) - 4(630) - 4(463)] kJ/mol = 818 + 1552 + 1488 - 2520 - 1852 = -514 kJ/mol

3 0

3 years ago