What happens when a glass of water is set in the sun until the water
evaporates?
A. Activation energy increases.
B. Enthalpy decreases.
C. Condensation increases.
D. Entropy increases.

Biden and this virus is what’s going on

Answer:

5.83g C4H10 x (1 mol C4H10/58.05 g (molar mass of C4H10) x (10 mol H2O/ 2 mol C4H10) x (18.002 g H2O (molar mass of H2O)/ 1 mol H2O=

Answer: 9.04 g of H2O

Explanation:

First set up equation: C4H10 (g)+ O2(g) -> CO2(g) + H2O(g)

Next balance it: 2C4H10 (g)+ 13O2(g) -> 8CO2(g) + 10H2O (g)

Use equation to get moles and plug given

5.83g C4H10 x (1 mol C4H10/58.05 g (molar mass of C4H10) x (10 mol H2O/ 2 mol C4H10) x (18.002 g H2O (molar mass of H2O)/ 1 mol H2O

Answer:

9.93712g

Explanation:

You have 10mL of water at 33 degrees, so you want to look at the density of water at 33 degrees. Then you multiply that density (.993712) by 10 and the mL cancel out and you are left with 9.93712g.

Hope this helps!

Answer:

S, F, Mg, Ba

Explanation:

Sulfur (S) is 100pm, Fluorine (F) is 147pm, Magnesium (Mg) is 173pm, and Baruim (Ba) is 268pm

Answer:

2, 3, 4 I THIK

Explanation:

The true statement about is CO is likely to have different chemical properties than CaO.

Option (3) is correct.

In the given chemical reaction, Calcium oxide (CaO) reacts with carbon (C) to form calcium carbide (CaC₂) and carbon monoxide (CO). Let's analyze the chemical properties of CO and compare them with CaO, CaC₂, and C.

1. CO vs. CaO: Carbon monoxide (CO) is an entirely different compound from calcium oxide (CaO). CO is a colorless, odorless gas, while CaO is a solid compound. Their chemical properties will differ significantly.

2. CO vs. CaC₂: Carbon monoxide (CO) and calcium carbide (CaC₂) have distinct chemical properties. CaC₂ is a solid, and CO is a gas. Their reactivity, physical properties, and applications are dissimilar.

3. CO vs. C: Carbon monoxide (CO) and carbon (C) are related, but they are different chemical species. CO is an oxide of carbon, whereas C represents the pure element. Their bonding, reactivity, and uses are different.

Therefore, CO is likely to have different chemical properties than CaO, CaC₂, and C.

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Apply Charles law

[tex]\\ \rm\Rrightarrow V_1T_2=V_2T_1[/tex]

[tex]\\ \rm\Rrightarrow 2T_2=2.4(273)[/tex]

[tex]\\ \rm\Rrightarrow 2T_2=655.2[/tex]

[tex]\\ \rm\Rrightarrow T_2=\dfrac{655.2}{2}[/tex]

[tex]\\ \rm\Rrightarrow T_2=327.6K[/tex]

Answer:

I think it's thermal, as it is affected by temperature

Answer:

The range of wavelengths or frequencies over which electromagnetic radiation extends. Radio waves, x-rays and visible light

Explanation:

Answer:

The range of wavelengths or frequencies over which electromagnetic radiation extends. Radio waves, x-rays and visible light

sorry im not doing somthing big for 5 points

Explanation:

A bumper car stops moving when it strikes another car because : ( B ) Its energy is transferred to the other car

Following the law of conservation of energy, energy is neither destroyed or created but converted from one form to another. when the car collides with another car, the Kinetic energy possessed by the initial car will be transferred to the new car.

when a car possess potential energy the car will be at rest that is why the bumper car stops moving after collision

Hence we can conclude that A bumper car stops moving when it strikes another car because its energy is transferred to the other car.

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Hello!

Complete ionic equations separate the equations into ion forms. Weak electrolytes and solids (precipitate) are exempt from this rule.

Net ionic equations are complete ionic equations but the ions that don't form as a precipitate are left out of the equation.

Anything cancelled out from the complete ionic equations are considered the spectator ions.

Looking at the equation, there are no weak electrolytes (you might have not covered this material yet), and the only precipitate in the solution is [tex]V(OH)_3[/tex].

1. What is the complete ionic equation?

Let's ionize the equation. Make sure all the atoms are correspondent with their coefficients. Don't forget their charges.

[tex]3Li^+(aq)+3OH^-(aq)+V^3^+(aq)+3Cl^-(aq)= 3Li^+(aq)+3Cl^-(aq)+V(OH)_3(s)[/tex]

Label every ion as (aq), and check the periodic table for their charges. Even without looking for V, we know that it is a 3+ charge since there are 3 chlorines attached to it.

2. What is the net ionic equation?

Get rid of all of the ions that don't do anything. Consider them lazy if they don't precipitate or form a solid. In this case, anything other than V and OH should be removed since they don't react. Think of it as cancelling out the ions that are still ions both sides.

[tex]V^3^+(aq)+3OH^-(aq)=V(OH)_3(s)[/tex]

3. What are the spectator ions?

Spectator ions are the cancelled out ions from the previous problem.

[tex]3Li^+(aq)~, 3Cl^-(aq)[/tex]

Answer:

Bohrium (Niels Bohr)

Curium (Marie and Pierre Curie)

Einsteinium (Albert Einstein

Answer:

9.46x10^12 kilomiters is your answer

Explanation:

Answer:

3 miles?

Explanation:

if you walk one mile North and then turn and walk another two miles you walk 3 miles and then turn around and walk back in the same direction you would end backup at the one-mile Mark he began. So three miles there two miles back

Cassidee traveled a distance of approximately 2.24 miles. Her displacement was approximately 2.24 miles westward.

Cassidee's motion forms a right triangle. Her first leg is 1 mile north, and her second leg is 2 miles west. Using the Pythagorean theorem:

Distance = √(1 mile)² + (2 miles)²

Distance = √1 + 4 = √5 ≈ 2.24 miles.

For displacement, we consider her initial and final positions. The horizontal component (westward) is 2 miles, and the vertical component (northward) is 1 mile. Using the Pythagorean theorem:

Displacement = √(Horizontal)² + (Vertical)²

Displacement = √2² + 1²

Displacement ≈ √4 + 1 = √5 ≈ 2.24 miles.

However, displacement needs a direction. Since she moves west, displacement is -2 miles west.

In summary, Cassidee traveled a distance of approximately 2.24 miles. Her displacement was approximately 2.24 miles westward.

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Heat lost (metal)=Heat gained (water)

Q in = Q out

So energy gained by the water = 1200 J

breakfast is that carry blood away from the heart are called

Answer:

a molecule is the smallest particle of a substance that can normally exist independenty

Answer: SiO2 has more electrons and stronger London dispersion forces.  

Answer: to see if the matter is a compound, mixture, or element.

Explanation:

can you please help with my most recent question :)

Answer:

Explanation:

Solution,

For Johnathan

Distance(d)=800m

Time(t)=200sec

Now,

Speed=d/t=800/200=4m/s

For Abby

Distance(d)=200m

Time(t)=40sec

Now,

Speed=d/t=200/40=5m/s

Here, Abby is faster by 1m/s.

Answer:

The correct answer is (A)

Explanation:

Comet are frozen pieces made out of dust, rock, and ices. Moon has a thick rocky crust.

Considering the Charles's Law, if you decrease the temperature of the gas by turning down the flame, the volume of the 400 L ballon decreases.

Charles's Law consists of the relationship between the volume and temperature of a certain amount of ideal gas, which is maintained at a constant pressure.

For a certain amount of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature is directly related to the energy of movement of the gas molecules.

That is, the volume is directly proportional to the temperature of the gas.

In this case, taking into account the Charles's Law, at constant pressure, if you decrease the temperature of the gas by turning down the flame, the volume of the 400 L ballon decreases.

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Answer:

Alpha Particle, Beta Particles and Gamma Rays

Explanation:

Answer:

0.579 moles

Explanation:

Moles = 23.53/40.64

= 0.5789 moles

Answer:

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

2NaCl --> 2Na + 1Cl2

1Na2S + 2HCl --> 2NaCl + 1H2S

CH4 + 2O2 --> CO2 + 2H2O

2Na + 1Cl2 --> 2NaCl

2H2 + O2 --> 2H2O

Answer:

if we connect bulb to the metal wire and connect wire's end through the battery then, the bulb will glow which shows that metal is good conductor of heat and electricity. Now if we connect bulb through a wooden scale, then bulb will not glow So,this shows it is bad conductor of heat and electricity.

Answer:

A) they both have an atmosphere