How is the Separation of a Compound different
from that of a mixture?

Lipids are more of a fatty, oily, and waxy substance that serve as long-term energy for whenever the body may need it. You can find lipids in oily foods such as salad dressing, olives, avocados, peanut butter, nuts, seeds, and some fish.

Proteins are enzymes that are used to strengthen and keep the body functioning. Proteins make up our bones, hair, skin, nails, and muscle, and without them our bodies wouldn't be strong enough to function or carry out even the simplest of tasks. Proteins are found in more animal-based foods such as meat, vegetables, grains, and seeds.

Carbohydrates are more of the sugary molecules that provide short-term or immediate energy for the body. They can be found in foods like bread, beans, milk, popcorn, potatoes, cookies, spaghetti, and soft drinks.

Explanation:

So first find out the moles. The percentage is out of 100 so just convert the percentage into mass by just changing the sign.

Ga = 55g/69.7 = 0.789 moles

F=45g/19 = 2.37 moles

Then divide by smallest value to find out the formula

Ga=0.789÷0.789= 1

F=2.37÷0.789 = 3

GaF3

hope this helps:)

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

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

From the question

mass of ball = 125 g

density = 0.5 g/mL

The volume of the ball is

\(volume = \frac{125}{0.5} \\ \)

We have the final answer as

Hope this helps you

Answer:

Question1: Isotopes, element, protons, neutrons. Question 2: W and Y

Explanation:

An Isotope is atoms of the same element that have a different amount of neutrons.

Both are Carbon atoms, but their Atomic Masses are different, and Atomic Masses are made up of Protons and Neutrons, which proves this!

Hope this helps! :D

Increase the friction of a car and decrease the friction of a car depends on the roughness of the contact surfaces.

Friction is force, that resists the motion when the surface of one object comes in contact with the another surface.  when to increase the friction force, surfaces which is contact have to be made more rough. when to reduce the friction we have to smooth the surface in contact. we can us lubricant to reduce the friction between the two surfaces.

Thus, Increase the friction of a car and decrease the friction of a car depends on the roughness of the contact surfaces.

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The thickness of the walls of each hollow lump of iron ore is: 0.295cm. This is determined using the knowledge of the Volume of a Hollow Sphere.

The formula for the Volume of a Hollow Sphere is give as:

Volume of a Hollow = 4/3 R³ – 4/3 r³

Step 1 - Find the apparent volume of 8cm diameter sphere including the wall the the hollow inside

V = 4/3 r³

V = (4/3) (8)³

V = (4/3) * (22/7) * 512

V = 2145.52cm³

Step 2 - Determine the mass of Gold required for the sphere to achieve the density of iron ore if the apparent volume is as given in Step 1 above.

Recall that Mass = Density * Volume

Mass = 5.15 *  2145.52

Mass = 11049.45

Step 3 - Find volume of gold based on mass calculated in Step 2 above

Recall that :

Volume = Mass/Density

Thus,

V = 11049.4/19.3

Thus, Volume = 572.51cm³

Step 4 - Find the width of the wall of a hollow sphere for the volume realized in step 3

Recall the initial formula:

Volume of a Hollow = 4/3 R³ – 4/3 r³

Thus, 572.51 = (4/3) (8³ - (8 - t)³)

572.51 = (4/3) *(22.7) *(8³ - (8 - t)³)

572.51 = (88/21) *(8³ - (8 - t)³)

Multiply both sides by 21 and we have

88 (512 - (8 - t)³) = 12,022.71

Simplify further
(8 - t)³ = 357.38

t = 0.9035cm

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Answer:

HFusion*mass + Spec.Heat*mass*ΔT + HVap*mass

80cal/g*50.0g + 1.00cal/g°C*50.0g*(100°C-0°C) + 540cal/g*50g

3.60x10⁵cal

Explanation:

Using the HFusion we can find the heat needed to convert the ice to liquid water.

With specific heat capacity we can find the heat needed to increase the temperature of water from 0 to 100°C.

With HVap we can find the heat to convert the liquid water into steam.

The equations are:

Computing the values:

36000cal =

Answer:

A.

Cu Zn K is are metals which form ionic bond with oxygen

The oxidized form of the molecule is quinone.

Oxidation has several definitions. Some of them are

In this case, quinone gained an electron from complex 1 to become quinol. Following the definition of oxidation as the loss of electrons, then we can say that the oxidized form of the molecule is quinone itself.

Immediate it gains an electron, it becomes reduced to quinol.

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Answer:

it is a nice question....my mind tells me that the first is it use me as a good vibes and can use to anything the second i will do my best too absorbe it.

Explanation:

Hope this help...

The maximum mass of lead that can be obtained by the reaction of 57.33 g PbO and 33.80 g of PbS is 58.4 g.

To answer this question, we need to use the balanced chemical equation for the reaction between lead (II) oxide (PbO) and lead (II) sulfide (PbS):

PbO + PbS → 2Pb + SO\(^{2}\)

According to the equation, one mole of PbO reacts with one mole of PbS to produce two moles of lead (Pb) and one mole of sulfur dioxide (SO\(^{2}\)). We can use this information to calculate the theoretical yield of lead from the given amounts of PbO and PbS.

First, we need to convert the masses of PbO and PbS to moles. The molar mass of PbO is 223.20 g/mol, so 57.33 g PbO is equal to 0.257 mol. The molar mass of PbS is 239.27 g/mol, so 33.80 g PbS is equal to 0.141 mol.

Next, we need to determine which reactant is limiting, i.e. which one will be completely consumed in the reaction. We can do this by calculating the number of moles of each reactant needed to produce the same amount of product. Since the ratio of PbO to PbS in the balanced equation is 1:1, we can compare the number of moles of each:

- PbO: 0.257 mol × (1 mol Pb / 1 mol PbO) = 0.257 mol Pb
- PbS: 0.141 mol × (1 mol Pb / 1 mol PbS) = 0.141 mol Pb

Since PbS is the limiting reactant (i.e. there is less of it than PbO), we will use its moles to calculate the theoretical yield of lead.

According to the equation, 1 mole of PbS produces 2 moles of Pb, so:

0.141 mol PbS × (2 mol Pb / 1 mol PbS) = 0.282 mol Pb

Finally, we can convert the moles of Pb to grams using the molar mass of Pb, which is 207.2 g/mol:

0.282 mol Pb × (207.2 g Pb / 1 mol Pb) = 58.4 g Pb

Therefore, 58.4 g is the maximum mass of lead that can be obtained by the reaction of 57.33 g PbO and 33.80 g PbS.

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Answer:

D

Explanation:

not all atoms would be the same size. As for they vary scaleing from left to right in the periodic table.

AThe half-life of an isotope is the amount of time it takes for half of the atoms in a sample to decay. If the half-life of a sample of uranium-234 is 2.5 * 10^5 years, it means that after 2.5 * 10^5 years, half of the atoms in the sample will have decayed.

If you want to know how long it will take for only one sixth of the original mass to be left, you can use the following formula:

t = (half-life) * log(2) / log(1/6)

Plugging in the values, we get:

t = (2.5 * 10^5 years) * log(2) / log(1/6)

This simplifies to:

t = 3.7 * 10^5 years

So it will take approximately 3.7 * 10^5 years for only one sixth of the original mass to be left.nswer:

Examples of compounds include table salt or sodium chloride , sucrose (a molecule, nitrogen gas, a sample of copper, and water.

The relative atomic mass of an element R with two isotopes 63R and 65R is 63.64.

Relative atomic mass is the ratio of the average mass per atom of the naturally occurring form of an element to 1/12 of the mass of a carbon-12 atom.

The relative atomic mass (RAM) of an element with two isotopes can be calculated by multiplying the mass of each isotope by its respective percentage abundance as follows:

RAM = (63 × 0.68) + (65 × 0.32)

RAM = 42.84 + 20.8

RAM = 63.64

Therefore, 63.64 is the relative atomic mass of the element R.

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Answer:

yes mass conservation is in 2Na+2H2O=2NaOH+H2​

Explanation:

it tells how many atoms or molecules of a reactant or a product take part in the reaction

The long term survival of any species of organism is possible only if the organisms can adapt the environment it living and to reproduce.

Not all kind of living things are fittest to survive in the world to live. Some of them are pray of their predators. Some are unhealthy to survive  while some others are competing to find food and shelter.

There are many organisms which have some natural adaptations, like some  strategies or physical peculiarities to hide from their predators and survive for ling time. For example, chameleon can hide from others by their color mimicking know as camoflouge.

The fittest one will survive and will be able to maintain their population through reproduction. Therefore, the organisms which can adapt to the environment it lives can survive for ling time.

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When water freezes, the attractions between water molecules weaken and the crystal lattice breaks apart.

Water molecules are the molecules which make up water. A water molecule consists of two hydrogen atoms bonded to a single oxygen atom, with the chemical formula H2O. The strong covalent bonds between the hydrogen and oxygen atoms give water many of its unique properties, such as its ability to dissolve many substances, its high surface tension, and its ability to absorb and release large amounts of heat energy.

As the temperature drops, the water molecules slow down and move closer together, forming a crystalline structure. As the temperature continues to decrease, the attractions between water molecules hold them in place in a crystal lattice, and all molecular motion stops.

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The statement among the available options that describes the result of the study is that less than 50% of the people never felt phantom pain. Option 2.

In order to interpret the data and find the best description of the outcome of the experiment, the response needs to be grouped into 2 from the 3 available responses.

Since those that phantom pain sometimes and always belong to the same category, the respondents can be summed up into one:

Number of those that sometimes feel phantom pain = 534

Number of those that always feel phantom pain = 193

Total number of people that feel phantom pain = 534 + 193

                                                                                = 727 people

Number of people that never feel phantom pain = 183

Total number of respondents in the experiment = 183 + 534 + 193

                                                                                = 910 people

Percentage of respondents that felt phantom pain = 727/910 x 100

                                                                                     = 79.89%

Percentage of people that never felt phantom pain = 183/910 x 100

                                                                                      = 20.11%

Percentage of people that felt phantom pain all the time = 193/910 x 100

                                                                                      = 21.21%

Thus, the statement that correctly describes the outcome of the experiment of all the statements is that less than 50% never felt phantom pain.

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Answer:

c i think

Explanation:

Answer:

D

Explanation:

The life cycles of cats and bees alike in the fact that both follow a pattern of birth, growth, and death. Hence, option D is correct.

The life cycle of an organism is the events of its life starting from its birth to death. Every organisms in earth is passing through the common events that is birth, growth and death.

The events in between these stages may vary from organism to organism. For instance there will be  a series of stages in growth for human child which is entirely different from that of a kitten.

The events of growth and its changes in appearance, behavior etc. for a cat is entirely different from that of a bee. Therefore, the common stages for the life cycle of all the organism is the pattern birth, growth and death.

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Answer:

because it does not cost much and can be found easily.  due to their low resistance and excellent conductivity.

Explanation:

Answer:

here are your answers

Explanation:

A and B are correct. Crubbers are expensive flue gas desulfurization devices used to remove 90% or more of SO2 pollution from industrial emissions.

Crubbers are indeed flue gas desulfurization devices used as pollution control equipment to remove SO2 (sulfur dioxide) from industrial exhaust gases. They are designed to reduce SO2 emissions to levels that are 90 percent or more below baseline levels. The term "baseline levels" refers to the initial levels of SO2 emissions before the implementation of the flue gas desulfurization system.

Crubbers, or flue gas desulfurization systems, work by utilizing various chemical processes to react with and remove sulfur dioxide from the flue gas. This helps mitigate the harmful effects of SO2 emissions on the environment and human health. However, it's important to note that while rubbers are effective in reducing SO2 pollution, they can be expensive equipment to install and maintain due to their complex design and operation. Therefore, both options A and B, which state that clubbers are flue gas desulfurization devices and expensive equipment, are correct.

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3.3 g of hydrogen gas will be produced.

Stoichiometry helps to measure quantitative relationships between the amounts of products and reactants that are given in a reaction.

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

Now we have to write the balanced equation

Mg + 2HNO₃  → Mg(NO₃)₂ + H₂

According to Stoichiometry

\(40.9\ \text{g Mg} \times \frac{1\ \text{mol Mg}}{24.31\ \text{g Mg}} \times \frac{1\ \text{mol}\ H_2}{1\ \text{mol Mg}} \times \frac{2.02\ g\ H_2}{1\ \text{mol}\ H_2}\)

= 3.3 g H₂

Thus from the above conclusion we can say that 3.3 g of hydrogen gas will be produced.

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The circumference of the circle is approximately 12.57 feet.

Chalk paint is a type of paint that is typically used to create a matte, chalky finish on furniture and other surfaces. It is known for its ability to adhere to a variety of surfaces without the need for priming or sanding.

The circumference of a circle is calculated using the formula C = 2πr, where C is the circumference, π is approximately equal to 3.14, and r is the radius of the circle (which is half the distance across the circle). So if the greatest distance across the circle is 4 feet, then the radius is 2 feet, and the circumference is approximately 12.57 feet.

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Answer:

Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts. Digestion involves taking large portions of food and breaking them down into micronutrients small enough to be absorbed by cells. Chewing and peristalsis help with this, but they don’t make particles small enough. That’s where chemical digestion comes in.

Chemical digestion breaks down different nutrients, such as proteins, carbohydrates, and fats, into even smaller parts:

Fats break down into fatty acids and monoglycerides.

Nucleic acids break down into nucleotides.

Polysaccharides, or carbohydrate sugars, break down into monosaccharides.

Proteins break down into amino acids.

Explanation:

I hope this helps!

Since the reaction shown in the question is an acid - base reaction in the Lewis sense; the Lewis acid here is AlCl3  while the Lewis base here is Cl^- .

A Lewis acid is a substance that accepts electron pair while a Lewis base donates an electron pair.

Now consider the given reaction; AlCl3 +Cl^- ------> AlCl 4 ^-. The Lewis acid here is AlCl3  while the Lewis base here is Cl^- .

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