What is the movement of matter due to density differences called?
A a convection current
B a pressure belt
C a climate cycle
D an ocean current

28.5 L = 1.00647 ft³

Given

28.5 Liters

Required

Convert to cubic feet

Solution

Dimensional analysis (unit analysis) is used to convert one unit to another using a conversion factor

Liters and A cubic foot (ft³) is a unit of volume

cubic feet (ft³) are commonly used in the US

Conversion factor :

1 Liter = 0,0353147 ft³

So for 28.5 Liters :

[tex]\tt 28.5~L\times \dfrac{0.0353147~ft^3}{1~L}=1.00647~ft^3[/tex]

Explanation:

Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical reactivity. The full valence electron shells of these atoms make noble gases extremely stable and unlikely to form chemical bonds because they have little tendency to gain or lose electrons. So, noble gases cannot participate in ionic bond formation.

Answer:

Because they can't!

Explanation:

For ionic bonds, ions are needed to be made which are made to form a stable outer shell octet of electrons of each atom to gain atomic stability. The noble gases don't need to form ions since they already have the octet of electrons in their outer shells. If they don't form ions, they don't form ionic bonds too.

This is one of the reasons why noble gases are unreactive.

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prophase, prometaphase, metaphase, anaphase,  telophase and cytokinesis

Explanation:

Answer:

The molar mass and molecular weight of Sn(CO3)2 is 238.728.

Explanation:

Molar mass of any molecule can be calculated by adding mass of all individual atoms  that comprises the compound. The Molar mass of [tex]Sn(CO_{3})_{2}[/tex] is 238.72g/mol.

Molar mass is defined as mass of one mole of a molecule or compound. It's SI unit is g/mole. The other term that is used for molar mass is molecular weight, formula unit mass. Molar mass is extensive property as it depends on the mass of individual atoms that constitutes the molecule.

Mass of tin= 118.71 g.mol

Mass of Carbon=12g/mol

mass of Oxygen= 16g/mole

Molar mass of [tex]Sn(CO_{3})_{2}[/tex] = 1×mass of tin+2×mass of carbon+6×mass of oxygen

substituting all the values we get

Molar mass of [tex]Sn(CO_{3})_{2}[/tex] = 1×118.71+2×12g/mol+6× 16g/mole

Molar mass of [tex]Sn(CO_{3})_{2}[/tex] =118.71 +24+66

Molar mass of [tex]Sn(CO_{3})_{2}[/tex]=238.72g/mol

Therefore the Molar mass of [tex]Sn(CO_{3})_{2}[/tex] is 238.72g/mol

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Answer:

Balance the stoichiometric amounts of both the reactants and the products.

Answer:

s

Explanation:

Explanation:

Given parameters:

Mass of the car  = 2550kg

Initial velocity  = 0m/s

Solution:

First problem is to find the force exerted on the car;

  Velocity  = 4.5m/s

   Time  = 0.2s

Acceleration  = [tex]\frac{final velocity - initial velocity }{time}[/tex]   = [tex]\frac{4.5 - 0}{0.2}[/tex]  = 22.5m/s²  

Force  = mass x acceleration  = 2550 x 22.5  = 57375N

B. Force on the car with crumple zones

Acceleration  = [tex]\frac{final velocity - initial velocity }{time}[/tex]    = [tex]\frac{4.5 - 0}{0.3}[/tex]   = 15m/s²

 Force  = 2550 x 15  = 38250N

a. The force when the car is rigid and accelerated is 57375N.

b. The force where the car should have  crumple zones should be 38250N

Since Mass of the car  = 2550kg

Initial velocity  = 0m/s

Here,

Velocity  = 4.5m/s

Time  = 0.2s

a.

Here force = mass * acceleration

= 2550 * (4.5 - 0/0.2)

= 2550 * 22.5

= 57375 N

b.

Here force is

= mass * acceleration

= 2550 * (4.5 - 0/0.3)

= 2550 * 15

= 38250 N

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Answer:

Chemistry reactions are used in art for the following processes;

1) Analog photography

The photographic paper used in analog photography react when exposed to light such that the image on the film stains the photopaper

A series of chemicals are further used to develop the images now carried on the paper and water is used to rinse of the chemicals after the other chemical processes are complete

The photopaper, now bearing the developed photo is hung for it to be dried

2) Paint used for painting consists of several chemicals, including, minerals that serve as pigment, oils that serve as carrying agent, a thinner to prevent the paint from turning to solid

An artist therefore combines different chemicals for a given paint task

3) In the sculpting process

An original sculpture is produced by the artist with the aid of clay or plaster, from the original sculpture, on which wax coatings and chemicals are used to make a replica mold.

Copies of the sculpture can then be made by pouring material into the mold

Explanation:

Answer:

D.R2NH

Explanation:

The general formula of a secondary amine is given as:

                    R2NH

Amines are organic compounds that show an appreciable basicity. They are regarded as the derivatives of ammonia where one or two of the three hydrogen atoms has/have been replaced by the alkyl or aryl groups.

 In a secondary amine, two hydrogen atoms of ammonia have been replaced by alkyl and or aryl groups.

Answer:

d. R2NH

Explanation:

edge 2021

Answer:

[tex]4.13[/tex] x [tex]10^{2}[/tex] = 413 kg

Explanation:

4.13 x 10 = 41.3 then we multiply 41.3 by 10 agian = 41.3 x 10 = 413

so, we multiplied ten two times that = [tex]10^{2}[/tex]

= 4.13 x [tex]10^{2}[/tex]= 413 kg

Given that 1 kilogram = 1000grams, the value of 413 kilograms in grams, using scientific notation is 4.13 × 10⁵g.

Note that;

1 kilogram = 1000grams

Given that;

Since, 1 kilogram = 1000grams

413 kilograms = ( 413 × 1000 )grams

413 kilograms = ( 413000 )grams

413 kilograms = 4.13 × 10⁵ g

Given that 1 kilogram = 1000grams, the value of 413 kilograms in grams, using scientific notation is 4.13 × 10⁵g.

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Answer:

Explanation:

Na     +     Cl    =      NaCl

23 g        35.5 g  

23 g sodium reacts with 35.5 g of chlorine

29 g of sodium reacts with 35.5 x 29 / 23 g of chlorine

= 44.76 g

So 44.76 g of chlorine reacts and 49 - 44.76 = 4.24 g of chlorine is left over .

All the sodium is used up in the reaction .

Answer:

D. Thermometer

Explanation:

The equipment used to measure the temperature of any reaction is the thermometer.

A thermometer is any device that has been specifically calibrated to measure the temperature values of reaction.

Answer:

D "Before the process, the substance was a liquid. After the process, it was a gas.

Explanation:

hope this helps.

According to the forces of attraction , before the process substance was liquid and after the process it was a gas as gas molecules are farther away than those in liquid.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Answer:

Fractional distillation (often shortened in high school to just distillation)

Explanation:

Some elements have different boiling points and can be separated by boiling one element out and condensing it. This is how sodium acetate is made, for example.

Hope this helped!

Answer: nervous tissue connective tissue epithlial tissue muscle tissue

Explanation:

Answer:

co2 is the answer

Explanation:

I hope it helps you

Answer:

both atoms are ions

Explanation:

Answer:

solid liquid and gas

Explanation:

Answer: Forms: Liquid water, solid water (ice) and gaseous water (water vapor)

Explanation:

Obviously liquid water comes from the sink, ice can be found in the freezer, and water vapor comes from boiling water, it is always in the air around us.

Liquid water is used for hydration or for food preparation. Ice is used to cool things down or in drinks, and water vapor isn't really used by humans. Rather, it serves as a natural greenhouse gas.

Answer:

Rinse With distilled water

Answer:

a. similar properties

Explanation:

In a given column of the periodic table, the elements have similar properties.

A column on the periodic table is known as a group or family. The group is a vertical arrangement of elements  on the periodic table.

Elements in the same group have the same number of valence electrons after their group number.

For example, all the elements in group 1 have one valence electron. Those in group 2 have 2 valence electrons.

The valence electrons of an atom determines its chemical properties. So, all elements in the same group have the same chemical properties.

Answer: similar properties

Explanation:

Answer:

mean is something that rude

mean is when ur dont undetstand something and u say what do u (mean)

Explanation:

lol why dont  u know this answer

Answer:mean is Vete a la mierda con tu pellizco mamá

Explanation:its something nice

Answer:

The correct answer is D

Explanation:

In an endothermic process, energy travels from the surroundings into the system. The decrease in the temperature on the outside of the bag indicates that energy has moved from the surroundings into the system.

The other answers are incorrect. A bag cannot release “cold” into the surroundings since cold refers to the absence of heat. The surroundings become colder when heat is removed. Option B is incorrect because the cooling is due to the cold pack absorbing heat energy from its surroundings. Option C is incorrect because a cold pack absorbs heat energy from the surroundings, not vice versa.

The surroundings are losing energy and the thermometer is measuring the temperature of the surroundings as the cold pack shows an endothermic process. Therefore, Option (D) is correct.

Endothermic reactions are those in which the reactants absorb heat energy from their surroundings to form products. Endothermic reactions reduce the temperature of their surroundings and create a cooling effect. Physical processes can be endothermic in nature as well, for example, ice cubes absorb heat from their surroundings to form liquid water.

Endothermic reactions include the making of chemical bonds through the absorption of energy from the surroundings. On the other hand, exothermic reactions are in which the liberation of heat energy is generated from bond breakage.

The temperature of the cold pack is lower than the temperature of the surroundings. So the heat energy will be traveled from the surroundings to the cold pack.

Therefore, the temperature of the surroundings will fall as heat transfers to the cold pack.

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Answer:

Geologists commonly consider faults to be active if there has been movement observed or evidence of seismic activity during the last 10,000 years. Active faulting is considered to be a geologic hazard - one related to earthquakes as a cause.

Explanation:

Plz mark brainliest thanks

Answer:

Examples of longitudinal waves include: sound waves. ultrasound waves. seismic P-waves.

Explanation:

Answer:

Its 1500 meters, which is equal to 0.9320568 miles. Hope this helps!

Explanation:

I hope this helped! +*♡

Answer:

A. 2NO + O2 -> 2NO2

B. 4Co + 3O2 -> 2Co2O3

C. 2Al + 3Cl2 -> Al2Cl6

D. 2C2H6 + 7O2 -> 4CO2 + 6H2O

E. TiCl4 + 4Na -> Ti + 4NaCl