When a solar eclipse happens, who can see it

1. Anyone around the equator

2. Anyone on the moon

3. Anyone who’s in the moons shadow

Answer:

Explanation:

C other awnser is correcto

Answer:

The correct answer is C-Protein

Explanation:

Trust me bro, I know things ;)

Answer:14.5 g

Explanation:N2 + 3H2 → 2NH2 0.60 mole of N, and 1.80 mole of H, were present as reactants. Only 14.5 g of NH3 are produced.

Answer: The answer is liquid

Explanation:

The state of matter consists of particles that are close together in a random pattern is liquid . Hence , Option (B) is correct.

When energy is added or removed to matter, it changes state to form a state of matter.

A state of matter is defined as one of the ways in which matter can interact with itself to form a homogeneous phase.

Therefore , The state of matter consists of particles that are close together in a random pattern is liquid . Hence , Option (B) is correct.

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Answer:

9999

Explanation:

If you do 10,000 that would be too much

Answer:

nucleus contains protons and atom is neutral

Explanation:

as atom contains equal amount of protons and electrons

The information from diagram shows the energy requirements needed in order for a reaction to

occur.

The collision theory states that each and every chemical reaction can occur between particles when the molecules collide each other.

The collision between particles is necessary but it is not sufficient for a reaction to take place. The collisions must be effective.

It is necessary to know the exact nature of an effective collision since this indicates whether particles react with each other and form new products.

According to collision theory, the reaction occur when molecules collide and molecules have sufficient activation energy to cross energy barrier.

Greater the energy, greater will be number of collision. Lesser energy, lesser will be number of collision.

Thus, the given energy diagram shows about the energy required for a reaction to take place.

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Answer: D) it shows the energy requirements needed in order for a reaction to occur.

Answer:

2.94 × 10²⁴ molecules

Explanation:

Step 1: Given data

Volume of acetone (V): 360 mL (360 cm³)

Density of acetone (ρ): 0.788 g/cm³

Step 2: Calculate the mass of acetone (m)

Density is equal to the mass of acetone divided its volume.

ρ = m/V

m = ρ × V

m = 0.788 g/cm³ × 360 cm³ = 284 g

Step 3: Calculate the moles corresponding to 284 g of acetone

The molar mass of acetone is 58.08 g/mol.

284 g × 1 mol/58.08 g = 4.89 mol

Step 4: Calculate the number of molecules in 4.89 moles of acetone

We will use Avogadro's number: there are 6.02 × 10²³ molecules of acetone in 1 mole of molecules of acetone.

4.89 mol × 6.02 × 10²³ molecules/1 mol = 2.94 × 10²⁴ molecules

It is a kind of radiation including visible light ,radio waves, gamma rays, and x-rays in witch electric and magnetic fields vary simultaneously. Hope that helps :)

Answer:

True

Explanation:

The Coriolis effect is the deflection of winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere because of Earth's rotation. This statement is true.

Circulating air is deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere as the Earth rotates on its axis. The Coriolis effect refers to this deflection.

Because of the rotation of the Earth, we experience an apparent force known as the Coriolis force. The wind is deflected to the right in the northern hemisphere and to the left in the southern hemisphere as a result of this.

There is no curving of the object's path as measured relative to the Earth's surface because there is no turning of the Earth's surface  underneath a horizontally and freely moving object at the equator.

Thus, There is no Coriolis effect because the object's path is straight.

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Answer:

532.2546

Explanation:

if i ask how many grams Are in a mole of N2 it would be 28.0134 grams and your asking 19 so 28.0134 x 19 would be 532.2546 grams

Answer:

they're examples of cell organelles

Explanation:

because it is ♥╣[-_-]╠♥

Answer:

0.30625 Ci

Explanation:

From the question given above, the following data were obtained:

Half-life (t½) = 5.73E3 years

Original activity (Nₒ) = 0.350 Ci

Time (t) = 1.719E4 years

Difference in activities =?

Next, we shall determine number of half-lives that has elapse. This can be obtained as follow:

Half-life (t½) = 5.73E3 years = 5.73×10³ years

Time (t) = 1.719E4 years = 1.719×10⁴ years

Number of half-lives (n) =?

n = t / t(½)

n = 1.719×10⁴ / 5.73×10³

n = 3

Thus, 3 half-lives has elapsed.

Next, we shall determine the activity after 1.719E4 years. This can be obtained as follow:

Original activity (Nₒ) = 0.350 Ci

Number of half-lives (n) = 3

Activity remaining (N) =?

N = 1/2ⁿ × Nₒ

N = 1/2³ × 0.350

N = 1/8 × 0.350

N = 0.125 × 0.350

N = 0.04375 Ci

Finally, we shall determine the difference in activities. This can be obtained as follow:

Original activity (Nₒ) = 0.350 Ci

Activity remaining (N) = 0.04375 Ci

Difference in activities =?

Difference in activities = Nₒ – N

Difference in activities = 0.350 – 0.04375

Difference in activities = 0.30625 Ci.

When salt dissolves in water, the water molecules are attracted by dissolves salt particles. This attraction is called dissociation.

Hope this helps you. Do mark me as brainliest.

The attraction of salt particles to water is called adhesion.

Therefore, the attraction of salt particles to water is called adhesion.

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Answer:

2) true 3)I think I A and there you go

Given :

Mass of O₂, m = 25.43 g.

To Find :

How many liters of gas will you have at STP.

Solution :

Molecular mass of O₂, M.M = 2 × 16 gram/mole

M.M = 32 gram/mole

Number of moles is given by :

n = m/M.M

n = 25.43/32 mole

n = 0.79 mole

Hence, this is the required solution.

Answer:

[tex]5\; \rm mol[/tex] of [tex]\rm Cu(NO_3)_2[/tex] would be produced (assuming that reaction does not run out of [tex]\rm AgNO_3[/tex] until all the [tex]\rm Cu[/tex] was converted.)

Explanation:

Make sure that the equation for this reaction is indeed balanced:

[tex]\rm Cu + 2\, AgNO_3 \to Cu(NO_3)_2 + 2\, Ag[/tex].

The coefficient of [tex]\rm Cu[/tex] and [tex]\rm Cu(NO_3)_2[/tex] are not shown. That implies that the coefficient of both species would be [tex]1[/tex]. In other words, the actual equation for this reaction should be:

[tex]\rm 1\; Cu + 2\; AgNO_3 \to 1\; Cu(NO_3)_2 + 2\; Ag[/tex].

Coefficient of [tex]\rm Cu[/tex] in this equation: [tex]1[/tex].

Coefficient of [tex]\rm Cu(NO_3)_2[/tex] in this equation: [tex]1[/tex].

Thus, the ratio between the coefficient of [tex]\rm Cu(NO_3)_2[/tex] and that of [tex]\rm Cu[/tex] would be [tex](1 / 1 ) = 1[/tex].

Assume that [tex]\rm Cu[/tex] is the limiting reactant of this reaction (that is: this reaction runs out of [tex]\rm Cu\![/tex] before running out of any other reactant.) This coefficient ratio would be equal to the ratio between:

Hence, under the assumption that [tex]\rm Cu[/tex] is the limiting reactant:

[tex]\displaystyle \frac{n(\rm Cu(NO_3)_2)}{n(\rm Cu)} = \frac{\text{coefficient of $\rm Cu(NO_3)_2$}}{\text{coefficient of $\rm Cu$}} = \frac{1}{1} = 1[/tex].

The question states that [tex]5\; \rm mol[/tex] of [tex]\rm Cu[/tex] was available. That is: [tex]n({\rm Cu}) = 5\; \rm mol[/tex]. Assume that [tex]\rm Cu\![/tex] is indeed the limiting reactant.

[tex]\begin{aligned} n({\rm Cu(NO_3)_2}) &= \frac{n(\rm Cu(NO_3)_2)}{n(\rm Cu)} \cdot n(\rm Cu) \\ &= 1 \times (5\; \rm mol) = 5\; \rm mol\end{aligned}[/tex].

Hence, under this assumption, [tex]5\; \rm mol[/tex] of [tex]\rm Cu(NO_3)_2[/tex] would be produced.

Answer:

Explanation:

Expression for capillary rise is as follows

h = 2T / ρ g r where T is surface tension , ρ is density of liquid and r is radius of capillary tube.

T = .032 J m⁻²

ρ = .71 g / cm³

= 7100 kg / m³

r = .1 x 10⁻³ m = 10⁻⁴ m

h = 2 x .032 / (7100 x 9.8 x 10⁻⁴ )

h = .0092 m

= 9.2 mm .

Answer:

Here

Explanation:

An invasive species is an organism that causes ecological or economic harm in a new environment where it is not native. ... Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats.

Answer:

A) Fission

Explanation:

Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy.

Answer:

The answer would be methane if the problem is asking for the fastest

Explanation:

I hope this helps answer your question

:D

Answer: Methane

Explanation:

Took the quiz and got it right

Answer:

it is D

Explanation:

A tree for one is a renewable resource, but. It said "farmed trees" therefore the best way to farm trees it well, to farm them. But to sustainably farm them you would need to replace what you destroyed to be able to keep farming in the future.

Answer:

New trees are planted to replace those that are cut down is the correct answer.

have a nice day! (^o^)

Answer:

it results in the formation of a salt called calcium carbonate and the solution becomes or appears to be milk-like. It is because calcium carbonate is insoluble in water.

Answer:

Explanation:I think that there should be no explaing and straight to the showing.

Answer:

-3.15 °Celsius I think.

Answer:

-3 C

Explanation:

Answer:

If you increase the concentration of a reactant, there will be more of the chemical present. More reactant particles moving together allow more collisions to happen and so the reaction rate is increased. The higher the concentration of reactants, the faster the rate of a reaction will be.