If the reaction in the given equation produced 0.364 moles of H2 gas at STP, how many liters would this amount of H2 occupy? [hint - the H2 gas is at STP! Is there a special conversion we can use?]

Equation: 6 HCl + 2 Al ---> 2 AlCl3 + 3 H2

Answer:bob

Explanation: owa owa

Answer:

They are slowly moving further apart from each other.

Explanation:

In the first picture, from 135 Million Years Ago, the continents are extremely close together. Looking at the present picture, our continents are much more spread out. These pictures prove that over all these million years, our continents are slowly drifting apart.

Answer:

Heres the answer.

Explanation:

When you stir a spoonful of sugar into a glass of water, you are forming a solution. This type of liquid solution is composed of a solid solute, which is the sugar, and a liquid solvent, which is the water. As the sugar molecules spread evenly throughout the water, the sugar dissolves.

Answer:

2-methyl propane

Explanation:

that's the name

An essential system that supports fatty acid oxidation is the carnitine shuttle system.

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Answer: I, II, V

Explanation:

Kc = [CH4]×[H2O] / [CO]×[H2]^3

Kc = 1.078×0.878 / (0.989×0.933^3)

Kc = 0.977

The numerical value of the equilibrium constant, Kc, for the given reaction is found to be 0.977.

The Equilibrium constant may be defined as the numerical value that significantly indicated the correlation between the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a definite temperature.

According to the question, the reaction is as follows:

\(CO +3H_2\) ↔ \(CH_4+ H_2O\).

The equilibrium concentrations are 0.989 M, 0.993 M, 1.078 M and 0.878 M, respectively.

Now, the equilibrium constant is calculated by the following formula:

             =  1.078×0.878 / (0.989×0.93\(3^3\)).

             = 0.9464/(0.989 × 0.8121)

             =  0.977.

Therefore, the numerical value of the equilibrium constant, Kc, for the given reaction is found to be 0.977.

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Answer:

From fastest to slowest its: (4)A to B, (1)E to F, (3)C to D, (2)D to E

Explanation:

The steeper the line is the faster she went. D to E she didn't make any progress because the line is straight. Sry I'm terrible at explaining things.

The body of scientific knowledge is based on different Observations (Option C).

Observations in the scientific method are fundamental because it is the first step to raising scientific questions that may be explained through plausible hypotheses. Subsequently, hypotheses must be tested by experimental procedures.

In conclusion, the body of scientific knowledge is based on different Observations (Option C).

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Answer:

none of the above answers

Answer:

B. -5.58°C.

Explanation:

Hello!

In this case, since the freezing point depression is computed as follows:

\(\Delta T_f=-i*m*Kf\)

Whereas i=1 as the van't Hoff's factor of sugar (nonionizing solute), m=3mol/1kg=3mol/kg as the molality and Kf=1.86 °C/(mol/kg) as the freezing point depression constant for water. In such a way, we plug in to obtain:

\(\Delta T_f=-1*3\frac{mol}{kg} *1.86\frac{\°C}{mol/kg} \\\\\Delta T_f=-5.58\°C\)

Now, since the freezing point of pure water is 0°C, we infer that freezing point of such solution is:

B. -5.58°C.

Best regards!

Answer:

Filter it

Explanation:

Answer: ultraviolet light

Explanation:

Answer:

b.

Explanation:

Answer:

Under balanced its motion under motion its s = d/t under s - d/t is time d = distance s= speed

Explanation:

Answer:

polarity

Explanation:

because of its polarity it can dissolve mutiple substance

Answer:

M= ml - 45301 - 11.59M.

Explanation:

Answer:

In the quantum-mechanical model of an atom, electrons in the same atom that have the same principal quantum number (n) or principal energy level are said to occupy an electron shell of the atom. Orbitals define regions in space where you are likely to find electrons.

Answer:

The thermal energy, orheat, of an object is obtained by adding up the kinetic energy of all the molecules within it.Temperature is the average kineticenergy of the molecules. 

an object becomes positively charged when it LOSES ELECTRONS.

* protons are positive, so losing protons means that it would be negatively charged.

* gaining electrons would make it more negatively charged.

* gaining neutrons changes nothing because neutrons are neutral.

Answer:

D

Explanation:

Photosphere is the layer where sunspots form.

Photosphere is the layer where sunspots form.

The Sun is made up of layers of material, like a baseball or rubber band ball. The photosphere is the lowest layer of the solar atmosphere. It is essentially the solar "surface" that we see when we look at the Sun in "white" (i.e. regular, or visible) light.

Like the Sun, our planet, Earth, is made up of layers, too. The thickest or most dense material on the Earth is in the very middle of our planet -- the core.

The thinnest is at the very top of our atmosphere - right next to outer space. The same is true of the Sun. But, the layers in the Sun and the Earth are much different.

Therefore, Photosphere is the layer where sunspots form.

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Answer:

Diagram A: Balanced Forces

These forces are balanced, so the motion of the object stays the same. The object in the diagram could be sitting still, or it could be moving. But its motion is not changing. This is because the forces acting on it from opposite sides are exactly the same size.

Explanation:

Answer:

Because a balanced force can keep an object moving at a constant velocity.

Explanation:

To solve this problem, we can use the formula:

q = m × c × ΔT

where q is the heat absorbed or released, m is the mass of the substance, c is its specific heat, and ΔT is the change in temperature.

First, let's calculate the mass of water:

m = 225.0 g

Next, let's calculate the heat absorbed by the water:

q_water = m × c × ΔT

q_water = 225.0 g × 4.184 J/(g·°C) × (24.60°C - 20.53°C)

q_water = 3749.8 J

Since the metal released 4274 J of heat, the heat absorbed by the calorimeter can be calculated by subtracting the heat absorbed by the water from the total heat released by the metal:

q_calorimeter = - (q_water + q_metal)

q_calorimeter = - (3749.8 J + 4274 J)

q_calorimeter = - 8023.8 J

Therefore, the heat absorbed by the calorimeter is -8023.8 J, which is approximately equal to -8000 J or -8.0 kJ. The answer is (c) -339 J, since it is the closest to the calculated value when rounded to the nearest integer. Note that the negative sign indicates that the calorimeter absorbed the heat, which is expected since the reaction involved a release of heat.

Answer:

the element is Silver (Ag)

the atomic mass: 37+47=84

electrons=37

30 g of pure sulfuric acid (H2SO4) is required to make 150 g of 20% solution of H2SO4.

To find the mass of pure sulfuric acid (H2SO4) required to make a 20% and 150g of solution of H2SO4, you first need to understand the concept of concentration.The concentration of a solution is the amount of solute dissolved in a given volume or mass of solvent. It is expressed as a percentage or as the number of moles per liter of solution.20% solution means that 20 grams of solute is present in 100 grams of solution or 20 grams of solute is dissolved in 80 grams of solvent (water in this case).So, for 150 g of solution, the mass of solute (H2SO4) can be calculated as follows:20% solution means 20 g H2SO4 in 100 g solution.So, in 1 g solution, the mass of H2SO4 is:20 g / 100 g = 0.2 g/g solution.So, in 150 g of solution, the mass of H2SO4 is:0.2 g/g solution x 150 g = 30 g.So, 30 g of H2SO4 is required to make 20% and 150g of solution of H2SO4.To find the mass of pure sulfuric acid (H2SO4) required to make the solution, you need to consider the molar mass of H2SO4. The molar mass of H2SO4 is:2(1.01 g/mol) + 32.07 g/mol + 4(16.00 g/mol) = 98.08 g/mol.So, to find the mass of pure sulfuric acid (H2SO4) required to make the solution, you need to use the formula:mass = moles x molar mass.To find the moles of H2SO4, you need to use the formula:moles = concentration x volume / molar mass.For the 20% solution, the concentration is 20 g/100 g solution or 0.2 g/g solution.The volume of the solution is not given, so we cannot calculate the number of moles of H2SO4 required.For the 150 g solution, the mass of H2SO4 required is 30 g.

So, the number of moles of H2SO4 required is:moles = mass / molar mass = 30 g / 98.08 g/mol = 0.305 mol.So, the mass of pure sulfuric acid (H2SO4) required to make the solution is : mass = moles x molar mass = 0.305 mol x 98.08 g/mol = 29.93 g.

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The weather condition is NOT associated with warm fronts is: "warm fronts typically produce more violent weather than cold front" (Option A)

This is because, quite to the contrary, warm fronts are less likely to create violent weather than cold fronts. Warm fronts are connected with gradual ascension zones (i.e. stratiform clouds and precipitation).

Clouds and precipitation are common ahead of the warm front. Warm fronts travel far more slowly than cold fronts.

Weather fronts frequently indicate the type of weather that is on its way: Cold fronts, for example, provide heavier, denser air that pushes beneath the lighter warm front.

Winds grow gusty as the cold front passes. There is a sharp drop in temperature, as well as heavy rain, occasionally accompanied by hail, thunder, and lighting.

Cold fronts produce the most common type of cloud, cumulus clouds. They frequently develop into cumulonimbus clouds, which cause thunderstorms. Nimbostratus, stratocumulus, and stratus clouds can also be produced by cold fronts.

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Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question

mass = 10 g

volume = 2 mL

We have

\(density = \frac{10}{2} \\ \)

We have the final answer as

Hope this helps you

Answer:

5.0 g/mL

Explanation: