The process by which a cell takes in a large particle is called

A
endocytosis.

B
diffusion.

C
active transport.

D
exocytosis.

Answer: It is AN combustion

reaction.

Explanation:

Answer: d. Ion-dipole

Explanation:

Answer:

The total amount of time elapsed during the reaction is 2.5227 × 10²s

Explanation:

The total amount of time elapsed in this reaction would be to add the (three) individual time taken together: t = t₁ + t₂ + t₃

(2.514 × 10²s) + (1.4 × 10⁻¹s) + (7.397 × 10¹s) = 252.2797 ⇔ 2.5227 × 10²s

Limiting reactant : Al

Al2O3 produced = 18.36 g

mass O2 remains = 11.904 g

Given

Reaction

4Al + 3O2 —> 2Al2O3

10.7 g O2

Required

Limiting reactant

mass Al2O3

Mass of excess reactant remains

Solution

mol Al : 10.7 : 27 = 0.396

mol O2 = 10.7 : 32 = 0.334

1. limiting reactant

mol : coefficient of Al : O2 = 0.396/4 : 0.334/3 = 0.099 : 0.111

Al as a limitng reactant(smaller ratio)

2. mass Al2O3

mol Al2O3 based on Al : 2/4 x 0.396 = 0.18

mass Al2O3(MW=102 g/mol) = 0.18 x 102 = 18.36 g

3. mass O2 remains

mol O2 reacted : 3/4 x 0.396 = 0.297

mol O2 remains = 0.669 - 0.297 =0.372

mass O2 remains = 0.372 x 32 = 11.904 g

Answer:

The temperature of the water in both beakers will decrease

Explanation:

Answer:

I believe it's C. "There will be no transfer of heat from the nickel to the water in the glass."

Explanation:

there won't be any transfer of heat from the nickel to the water in the glass because both the nickel and the glass of water are at the same temperature.

Answer:

lithosphere

Explanation:

Earth's interior layers are ordered by density. The densest layer is the solid metal inner core, the mantle is of intermediate density, and the least dense layer is the lithosphere, particularly the continental lithosphere.

The crust is the layer of the earth with the lowest density.

The crust is the rock layer that is the lightest and most buoyant on Earth. 41% of the Earth's surface is covered by continental crust, with a quarter of that covered by ocean floor. The thickness of the continental crust is 20 to 80 kilometers. Four billion years of Earth's history are stored in its rocks.

The crust is the outermost layer of the Earth, and it is only about 5-70 km deep. The mantle is the layer beneath the crust, which is about 2,900 km thick and has a thickness that varies. The core is divided into two sections: the inner core, which is solid, and the outer core, which is liquid. The Earth's surface is made up of several plates, which are continuously changing due to forces within the Earth.

Know more about crust:

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Answer:

60000J

Explanation:

Given parameters:

Mass of car  = 1200kg

Speed  = 10m/s

Unknown:

Kinetic energy  = ?

Solution:

The kinetic energy is given as:

   Kinetic energy  = [tex]\frac{1}{2}[/tex]  m v²  

Now insert the parameters and solve;

   m is the mass

    v is the velocity  

 Kinetic energy  =  [tex]\frac{1}{2}[/tex] x 1200 x 10²   = 60000J

Answer:

A. Rarefaction

Explanation:

Answer:

Combustion

---

Answer:

This is not a redox reaction. It is an example of combustion.

Explanation:

Answer:

3 Handsprings

Explanation:

18 divided by 6 is 3

Mass of Oxygen : 8.0 g

Given

1.51 x 10²³ molecules of Oxygen(O₂)

Required

Mass of Oxygen

Solution

1 mol = 6.02 x 10²³ particles(molecules, atoms, ions)

Can be formulated :

N = n x No

n = moles

No = Avogadro's number

Find moles of Oxygen :

n = N/No

n = 1.51 x 10²³ / 6.02 x 10²³

n = 0.251

Mass of Oxygen :

mass = mol x MW O₂

mass = 0.251 x 32 g/mol

mass = 8.032≈ 8.0 g