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3 years ago

The floor of heavier rock under the oceans is composed of

Chemistry

2 answers:

Monica [59]3 years ago

8 0

The answer is magma.

arsen [322]3 years ago

4 0

The continental crust is composed mostly of granite. The oceanic crust consists of a volcanic lava rock called basalt. Basaltic rocks of the ocean plates are much denser and heavier than the granitic rock of the continental plates.

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Explain how carbon’s bonding ability makes it unique.

STatiana [176]

$\huge\fcolorbox{red}{pink}{Answer ♥}$

The carbon atom is unique among elements in its tendency to form extensive networks of covalent bonds not only with other elements but also with itself. ... Moreover, of all the elements in the second row, carbon has the maximum number of outer shell electrons (four) capable of forming covalent bonds.

Hope it helps uh ✌️✌️✌️

Gud mrng

7 0

3 years ago

A biochemist carefully measures the molarity of magnesium ion in 47, mL of cell growth medium to be 97. ??. Unfortunately, a car

serg [7]

Complete Question

The complete question is shown on the first uploaded image

Answer:

Answer: 760 uM

Explanation:

the addition of solvent to a solution in a such away that the volume of the solution increases and the concentration decreases is a process know as dilution

The concentration and the volume of the dilute and concentrated solution are given below as follows

$C_{1}V_{1}$ $= C_{f}V_{f}$

Concentrated solution Dilute solution

Given that M1 = 97.0uM

V1 = 47.0 mL

V2 = 6.0 mL

M2 = ?

Therefore M1V1 = M2V2

M2 = M1V1/V2

M2 = (97*47)/6

M2 = 760 uM

Answer: 760 uM

5 0

3 years ago

Please help me with these! Mark brainliest

bearhunter [10]

Answer:

1. Alkalinity

2. True

3. Red

Explanation:

1. 8-14, which are the bases, are alkaline

2. Salt lowers the melting/freezing point of water

3. Blue --> Red is Acid

6 0

3 years ago

If an international student returns to her country of origin and works for an MNE whose headquarters is in the country where she

shutvik [7]

Answer:

B. HCN

Explanation:

PCN stands for Parent Country National. A PCN is an individual who is working in the country other than his or her native or origin country.

HCN stands for Host Country National. A HCN is the employee of the organization who is a citizen of the country where the foreign subsidiary is been located.

TCN stands for Third Country National. A TCN is an individual of other nation who is hired by a government who represents neither his host country or the government.

Hence in the context, a person who returns to his native country and works at an MNE which have its headquarter in the country where the individual studied is termed as a Host Country National or HCN.

Thus the correct option is (B).

4 0

3 years ago

a ridged 2.40L sealed vessel contains He and C3H6 gases. The partial pressure of He is 1.4 atm and that of C3H6 is 1.7 atm, at 5

balandron [24]

Answer:

Partial pressure He → 0.96 atm

Partial pressure C₃H₆ → 1.18 atm

Explanation:

We apply the Charles Gay Lussac law, to solve this. Pressure varies directly proportional to absolute T°, when the volume keeps on constant.

P₁ / T₁ = P₂ / T₂

We convert the T° to absolute T°

55°C + 273 = 328K

-45°C + 273 = 228K

Total pressure = Sum of partial pressures

1.7 atm + 1.4 atm = 3.1 atm

When we apply the formula we would know the new total pressure

3.1 atm / 328K = P₂ / 228K

(3.1 atm / 328K) . 228K = 2.15 atm

As the moles has not been modified with the change of T°, we assume the mole fraction is still the same.

Mole fraction He = Partial pressure He / Total pressure

1.4 atm / 3.1 atm = 0.45

Mole fraction C₃H₆ = Partial pressure C₃H₆/ Total pressure

1.7 atm / 3.1 atm = 0.55

0.45 = Partial pressure He / 2.15 atm

Partial pressure = 0.45 . 2.15 atm → 0.96 atm

0.55 = Partial pressure C₃H₆ / 2.15 atm

Partial pressure = 0.55 . 2.15 atm → 1.18 atm

3 0

3 years ago