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A group of students simulates colliding air masses. Using an index card for separation, a jar of warm tap water with red food coloring is placed over a jar of cold water with yellow food coloring. The index card that separates the two bodies of water is removed. Students observe how the two fronts travel in relation to one another.


A.) Air masses are not distinguisable by color.

B.) Air masses are neither hot nor cold in temperature

C.) Air masses do not collide in real life

D.) Air masses cannot be modeled

Answer: 0.7 moles

Explanation:

Answer:

Its answer choice C

Answer:

Ring is made up off copper.

Explanation:

Given data:

Mass of ring = 89.2 g

Volume of water = 10 mL

Volume of water + ring = 20 mL

Ring is made up of = ?

Solution:

Volume of ring = (Volume of water + ring) - Volume of water

Volume of ring = 20 mL - 10 mL

Volume of ring = 10 mL

Density:

Density = mass/volume     ( 1 mL = 1 cm³)

d = 89.2 g/  10cm³

d = 8.92 g/cm³

Thus, ring is made up off copper.

Answer:

If the fault develops in a situation of compression, then will be a first fault due to the fact that compression causes the hanging wall to be pushed up relative to the footwall.

Answer:

9.85

Explanation:

M1V1 =M2V2

6.20×v1= 0.470×0.130

v1 = ( 0.470 × 0.130 ) ÷ 6.20

v1 = 0.0098 L × 1000

V1 = 9.8 ml

Answer:

Water is reactant and hydrogen gas is product

Explanation:

Answer:Density is directly proportional to pressure and indirectly proportional to temperature. As pressure increases, with temperature constant, density increases. Conversely when temperature increases, with pressure constant, density decreases.

Explanation:

hope this helped

Answer:

Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.

Explanation:

Answer:  [tex]CaCO_3(s)\rightarrow CaO(s)+CO_2(g)[/tex] , 0.533 L

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

[tex]CaCO_3(s)\rightarrow CaO(s)+CO_2(g)[/tex]

According to avogadro's law, 1 mole of every substance occupies 22.4 L of volume at STP.

Number of moles =[tex]\frac{\text {given mass}}{\text {Molar mass}}[/tex]

moles of calcium carbonate = [tex]\frac{2.38g}{100g/mol}=0.0238mol[/tex]

As 1 mole of calcium carbonate produces = 22.4 L of carbon dioxide at STP

Thus 0.0238 moles of calcium carbonate produces =[tex]\frac{22.4 L}{1}\times 0.0238=0.533L[/tex] of carbon dioxide at STP

The balanced equation is [tex]CaCO_3(s) \rightarrow CaO(s) + CO_2(g)[/tex]

The number of liters of carbon dioxide that should be produced is 0.533L

As per this law, the mass could neither be developed nor be destroyed. So, the mass of products should be equivalent to the mass of reactants. The number of atoms of every element has to be the similar on reactant and product sides. Due to this, the chemical equations are balanced.

[tex]CaCO_3(s) \rightarrow CaO(s) + CO_2(g)[/tex]

As per this law,  1 mole of every substance occupies 22.4 L of volume at STP.

So,

We know that

Number of moles = [tex]given\ mass \div molar\ mass[/tex]

Now the moles of calcium carbonate is [tex]= 2.38 \div 100[/tex] = 0.0238 mol

Since 1 mole of calcium carbonate generated = 22.4 L of carbon dioxide at STP

So, 0.0238 moles of calcium carbonate generated

[tex]= 22.4 \div 1 \times 0.0238 \\\\= 0.533L[/tex]

 of carbon dioxide at STP

Learn more about the equation here: https://brainly.com/question/15844891

The activity series of metals reflect the stability of metals are "the metals highest on the list are the least stable."

The organization of metals in a declining sequence of respective reactivities is referred to as the "activity series," also described as the "reactivity series" of metals.

Materials having the qualities of being bright, hard, fusible, malleable, ductile, etc. were known as metals.

The activity series of metals reflect the stability of metals are "the metals highest on the list are the least stable."

To know more about  activity series and metals

https://brainly.com/question/14129976

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Answer:

C

Explanation:

It is most likely non metal with a high electronegativity.

Answer:

8

Explanation:

Answer:

the answer is 8 :D

Explanation:

2x4 also known as 2+2+2+2 is equal to 8

Answer:

C. Magnesium

Explanation:

Zinc sulphate (ZnSO4) will react fastest with Magnesium (Mg) because magnesium is more reactive than Zinc and other given elements.

Zinc sulphate (ZnSO4) reacts with Magnesium (Mg) and undergo displacement reaction. Zinc is displaced by magnesium and form Magnesium Suphate (ZnSO4).

                 ZnSO4 + Mg => MgSO4 + Zn

Answer:

Loss of energy to a colder material. Ice forms at 32°F /0° C.

Explanation:

As water cools, the natural movement between the molecules slows until it changes to a solid state (just as it boils to gas if they become too active). This movement doesn't completely stop until the material hits "absolute zero" at -460°F /-273° C. (0° Kelvin).

That's about the temperature "in the shade" in outer space.

A more interesting question would be, "why does water expand when it freezes?" The H - two - O molecule forms a triangle (with the O in the middle).

As it cools, the angle formed by the two H's gets larger. At around 36°F /2° C , the shrinking space between molecules gets overwhelmed by the expanding size of each molecule.

So, for those last few degrees before freezing, the overall volume gets bigger instead of continuing to decrease.

That's what causes potholes in roads (water settles into cracks, then makes the crack larger as it freezes). It's what damages the eaves trough around your roof, breaks leaves down into topsoil and splits boulders in half.

Answer:

bacteria release acids and other agents that break down rock

Explanation:

One of the ways in which biological weathering results in chemical erosions is through bacteria releasing acids and other agents to break down a rock.

Weathering is defined as the physical disintegration and chemical decomposition of rocks to form sediments and soils.

The process of erosion removes the weathered materials from the earth surface.

Chemical weathering involves the decay of rocks by chemical means.

Answer:

Deposition

Explanation:

The process of deposition is when an object goes from a gas to a solid. In the picture, the first container had a gas (molecules were far apart). In the second, the molecules were tightly packed (a solid).

Hope this helps!

Answer: The middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure are correct.

Explanation: I just did this question and got the correct answers.

The incomplete points about the structure H—H-O: is that the middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure are correct.

For better understanding let's explain the Lewis structure

From the above we can therefore say that the answer The incomplete points about the structure H—H-O: is that the middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure, is correct.

Learn more from

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Answer:

New Hampshire is the most in proverty.

Explanation:

I learned this before.

Answer:

Oklahoma state

Explanation:

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Answer:

2.78 moles of water are produced.

Explanation:

Given data:

Number of moles of H₂O produced = ?

Number of moles of oxygen react = 3.25 mol

Solution:

Chemical equation:

2C₂H₆ + 7O₂       →     4CO₂ + 6H₂O

Now we will compare the moles of water with oxygen.

                O₂          :          H₂O

                 7            :           6

               3.25        :           6/7×3.25 = 2.78 mol

Answer:

I think it B

Explanation:

Answer:

The answer is FTC or C!!!!!!!!!!!!!!!!!!!!!!!!!!!

Explanation:

Answer:

is a

Explanation: A, because the oceanic plate and continental plate are pushed up together

Location A, because the lighter oceanic plate will be pushed under the continental plate

Answer:

is a

Explanation:



Answer:

location A

Explanation:

Plates Subduct When an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. This process is called subduction. A deep ocean trench forms at this subduction boundary.

plus location B doesn't seem to have 2 plates colliding to cause subduction in the first place.

your welcome

Answer:

goggles

Explanation:

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Answer:

The food pyramid is just to make people have a healthier "Diet."

Explanation:

It shows the food groups we eat and which ones to put together to make a healthy diet. Eating the right amount of each food group is called a "Balance" diet. Therefore, its not needed, but it is useful.

Answer:

Xenon

Explanation:

The reason is because, Xenon is a part of a Group on the periodic table called Noble Gases. This means that it has 8 electrons on its outer shell, making it very hard to get a reaction out of it.

Answer:

If the mass stays constant the object's density decreases as the volume increases. ... Because the property of density is a constant for all variables, density can be used to identify the material an object is made of.

Explanation:

Answer:

One mole of calcium is present in one mole of calcium carbonate

Explanation:

Because its formula is CaCO3

Ca contains 2+ charge and CO3 contains 2- charge

Answer:

P₂ = 3.61 atm

Explanation:

Given data:

Initial pressure of tank = 3.20 atm

Initial temperature = 22.0°C

Final temperature = 60.0°C

Final pressure = ?

Solution:

Initial temperature = 22.0°C (22.0 +273 = 295 K)

Final temperature = 60.0°C (60 +273 = 333)

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

3.20 atm / 295 K = P₂/333 K

P₂ = 3.20 atm × 333 K / 295 K

P₂ = 1065.6 atm. K /295 K

P₂ = 3.61 atm

Answer:

The answer is 3.61

Explanation:

reI did all the math and everything, the pressure is 3.61