Ask question

Ask question

All categories

skelet666 [1.2K]

3 years ago

5

NEED THIS ASAP describe or define between oceanic crust and oceanic crust

2 answers:

s2008m [1.1K]3 years ago

7 0

It is the solid rock layer upon which we live. It is either continental or oceanic. Continental crust is typically 30-50 km thick, whilst oceanic crust is only 5-10 km thick. Oceanic crust is denser, can be subducted and is constantly being destroyed and replaced at plate boundaries.

Vilka [71]3 years ago

6 0

Oceanic crust is the relatively thin part of the earths crust which underlies the ocean basins. it is geologically young compared with the continental crust and consists of basaltic rock overlain by sediments

You might be interested in

Consider the following balanced equation:

algol [13]

Moles of PF₃ : 4

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

$\tt P_4(s)+6F_2(g)\rightarrow 4PF_3(g)$

1.25 moles of P₄(s) is reacted with 6 moles of F₂(g)

Limiting reactant : the smallest ratio (mol divide by coefficient)

P₄ : F₂ =

$\tt \dfrac{1.25}{1}\div \dfrac{6}{6}=1.25\div 1\rightarrow F_2~limiting~reactant(smallest~ratio)$

mol PF₃ based on mol of limiting reactant(F₂), so mol PF₃ :

$\tt \dfrac{4}{6}\times 6~moles=4~moles$

8 0

3 years ago

Which of the following values is measured the LEAST precisely? * 22mL 45.2mL 50mL 100mLchem

nekit [7.7K]

Answer:

If you're looking at the data as a whole, it would most likely be 100ml.

Explanation: The definition of precise is data close together so 100ml is furthest away from the other recorded numbers

7 0

3 years ago

List two examples of items that undergo sublimation

umka21 [38]

Answer:

Examples of solids that sublime are dry ice (solid carbon dioxide), iodine, arsenic, and naphthalene (the stuff mothballs are made of).

Explanation:

8 0

3 years ago

Tarnish on copper is the compound CuO. A tarnished copper plate is placed in an aluminum pan of boiling water. When enough salt

Jet001 [13]

Answer: 2.00 V

Explanation:

The balanced redox reaction is:

$2Al+3Cu^{2+}\rightarrow 2Al^{3+}+3Cu$

Here Al undergoes oxidation by loss of electrons, thus act as anode. Copper undergoes reduction by gain of electrons and thus act as cathode.

$E^0=E^0_{cathode}- E^0_{anode}$

Where both $E^0$ are standard reduction potentials.

$Al^{3+}+3e^-\rightarrow Al$ $E^0_{[Al^{3+}/Al]}=-1.66V$

$Cu^{2+}+2e^-\rightarrow Cu$ $E^0_{[Cu^{2+}/Cu]}=0.340V$

$E^0=E^0_{[Cu^{2+}/Cu]}- E^0_{[Al^{3+}/Al]}$

$E^0=+0.34- (-1.66V)=2.00V$

Thus the standard cell potential is 2.00 V

6 0

3 years ago

If you want to determine the actual salicylate concentration for a sample that gives a greater absorption than the highest conce

Anarel [89]

Answer: The concentration of unknown sample is 1.8 mg/ml

Explanation:

According to the dilution law,

$M_1V_1=M_2V_2$

where,

$M_1$ = concentration of stock solution = ?

$V_1$ = volume of stock solution = 0.25 ml

$M_1$ = concentration of diluted solution = 0.45 mg/ml

$V_1$ = volume of diluted solution = (0.25+0.75) ml = 1.00 ml

Putting in the values we get:

$M_1\times 0.25=0.45\times 1.00$

$M_1=1.8mg/ml$

Therefore, concentration of unknown sample is 1.8 mg/ml

3 0

2 years ago