Can a saving account lose your money

Answer:

D

Explanation:

Oxygen is an element.

sugar is a hydrocarbon derivative.

water is a compound made of hydrogen and oxygen. There are no metals in it at all.

So you are left with Halite. The common name for halite is salt. The chemical formula is NaCl

Answer: D

The transfer of electrons between alkali metals and halogens results in the formation of a strong ionic bond characterized by the attraction between positively charged alkali metal cations and negatively charged halogen anions.

The transfer of electrons between alkali metals and halogens leads to the formation of an ionic bond. An ionic bond is a type of chemical bond that occurs when there is a complete transfer of one or more electrons from an atom of one element (in this case, the alkali metal) to an atom of another element (the halogen).

Alkali metals, such as sodium (Na) and potassium (K), have one valence electron in their outermost shell, while halogens, such as chlorine (Cl) and iodine (I), require one electron to complete their outermost shell. In the process of bond formation, the alkali metal readily donates its valence electron(s) to the halogen, resulting in the formation of positively charged ions known as cations (e.g., Na+ and K+), and negatively charged ions known as anions (e.g., Cl- and I-).

The resulting electrostatic attraction between the oppositely charged ions leads to the formation of a strong ionic bond. This bond is characterized by the attraction between the positively charged alkali metal cations and the negatively charged halogen anions. Ionic bonds are typically strong and have high melting and boiling points, as well as good solubility in polar solvents.

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To determine the amount of reactant used in grams and moles, as well as the product obtained in grams and moles, the reaction equation and stoichiometry of the reaction are essential.

The theoretical yield of the product can be calculated based on the balanced equation and the stoichiometry, while the percent yield is calculated by dividing the actual yield by the theoretical yield and multiplying by 100%.

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Answer:

Genotypes are related with the collection of genes expressed in the DNA.

Explanation:

Hello,

In genetics, two specific terms define the characteristics of a living thing; a genotype and a phenotype; thus, phenotypes are related with the physical manifestation of genes, for instance, red hair, blue eyes, long arms and others.

On the other hand, genotypes are related with the collection of genes expressed in the DNA, and they could be for equal alleles or for different alleles, in other words, it is the version of DNA the living thing has.

Regards.

Answer:

Q = 88725 J

Explanation:

Q = mcΔT

where,

c = 4.2 J/g°C

m = 250 g

ΔT = Tfinal − Tinitial = 100ºC − 15.5ºC = 84.5ºC

Q = 250 x 4.2 x 84.5

Q = 88725

The [H3O+] in a 0.265 M HClO solution is 8.8 x 10-5 M.

This can be calculated using the following formula:

Ka = [H3O+][ClO-] / [HClO]

where:

Ka is the acid dissociation constant for HClO (2.9 x 10-8)

[H3O+] is the concentration of hydronium ions (the acidic species)

[ClO-] is the concentration of hypochlorite ions (the conjugate base of HClO)

[HClO] is the initial concentration of HClO

The acid dissociation constant, Ka, is a measure of how easily an acid dissociates in solution. A higher Ka value means that the acid dissociates more easily. In this case, the Ka value for HClO is 2.9 x 10-8, which means that HClO is a weak acid.

The concentration of hydronium ions, [H3O+], can be calculated by solving the equation for Ka. When we substitute the known values into the equation, we get:

                                           Ka = (2.9 x 10-8) * [H3O+] * [ClO-] / 0.265 M

Since [ClO-] is equal to [H3O+], we can simplify the equation to:

                                          2.9 x 10-8 = [H3O+]^2 / 0.265 M

Solving for [H3O+], we get:

                                          [H3O+] = 8.8 x 10-5 M

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The resulting volume of the tire would be 1.1 L

According to this law, the volume of a given gas is directly proportional to its temperature provided that the pressure remains constant.

The law can be presented mathematically as;  V1/T1 = V2/T2

In this case, V1 = 1.0 L, T1 = 22 °C (295 K), T2 = 52 °C (325 K).

V2 = V1T2/T1 = 1 x 325/295

                             = 1.1 L

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Answer:1.1 L

Explanation:

Answer:

+1

Explanation:

Sodium has one electron in its outermost shell. Sodium can not be able to accept seven electrons because the energy required for that process is very high. Sodium would rather loose its only valence electron to form a univalent positive ion Na^+.

This is an easier process. When sodium looses one electron, it now has a charge of +1.

Explanation

Given:

Mass of copper = 5.07 g

Density of copper = 8.96 g/mL = 8960 g/L

Requested: Volume of copper

Solution

p = m/V where p is the density, m is the mass and V is the volume

m = p x V

V = m/p

V = 5.07 g/8.96 g/mL

V = 0.566 mL

Answer

Volume of copper = 0.566 mL

Cl₂ is most likely to behave like an ideal gas under the conditions (b) 0 °C and 0.50 atm.

At low pressures and high temperatures, the behaviour of a gas approximates to that of an ideal gas. Cl₂ will behave like an ideal gas at low pressures because the intermolecular attractions between Cl₂ molecules are reduced, and this will result in a greater separation between them. The ideal gas law can be applied to predict the behaviour of Cl₂ under these conditions. 149.

An ideal gas is a theoretical concept of a gas that follows the ideal gas law at all temperatures and pressures. The behaviour of an ideal gas is described by four state variables, namely pressure, temperature, volume, and amount of gas. The ideal gas law, PV = nRT, describes the relationship between these state variables and the physical properties of an ideal gas.

The law is derived from a combination of Boyle’s law, Charles’ law, and Avogadro’s law. However, a real gas behaves differently from an ideal gas due to intermolecular attractions between gas molecules. These intermolecular attractions cause the gas to deviate from ideal gas behaviour at high pressures and low temperatures. At low pressures and high temperatures, the behaviour of a gas approximates to that of an ideal gas.

As pressure and temperature increase, the intermolecular attractions between gas molecules become significant, and the gas will deviate from ideal gas behaviour. Real gases exhibit non-ideal behaviour at high pressures and low temperatures. The Van der Waals equation is an improvement on the ideal gas law and can be used to account for the intermolecular attractions between gas molecules.

The equation incorporates two correction factors that account for the volume and intermolecular forces of real gases. The Van der Waals equation is given by (P + a(n/V)²)(V-nb) = nRT, where a and b are the Van der Waals constants. The Van der Waals equation can be used to describe the behaviour of real gases under non-ideal conditions.

Option B.

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While visiting his uncle's farm, Derek learned that horses and donkeys are two different species. Based on this information, Derek can infer that horses and donkeys are members of different populations.


Since horses and donkeys are different species, they belong to different populations. A population refers to a group of individuals of the same species that live in the same area and can interbreed. While horses and donkeys can mate, their offspring, known as mules, are usually infertile.

This means that mules cannot produce offspring of their own, which indicates that horses and donkeys are not members of the same population. In contrast, if they were members of the same population, they would be able to produce fertile offspring. Therefore, Derek can infer that horses and donkeys are members of different populations.

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There are approximately 0.0302 moles of N2 in the flask. To find the number of moles of N2 in the given flask, we can use the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the universal gas constant, and T is the temperature.

First, we need to convert the volume of the flask from mL to L, which is 0.250 L. We also need to convert the pressure from kPa to atm, which is 2.962 atm (using 1 atm = 101.3 kPa). Finally, we need to convert the temperature from K to °C, which is 26.85°C.
Now we can plug in the values into the ideal gas law equation:
(2.962 atm) x (0.250 L) = n x (0.0821 L·atm/mol·K) x (26.85°C + 273.15)
Simplifying this equation gives:
0.7405 = n x 2.0795
Dividing both sides by 2.0795 gives:
n = 0.356 moles
To determine the number of moles of N2 in the flask, we can use the Ideal Gas Law formula:
PV = nRT
Where:
P = pressure (in kPa)
V = volume (in L)
n = moles of gas
R = ideal gas constant (8.314 J/mol K, but we'll use 8.314 kPa L/mol K for consistency)
T = temperature (in K)

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A set of particles (atoms or molecules) that are constantly moving at random makes up a gas sample, according to the kinetic energy of a  molecular theory.

Moreover, these gas particles' average kinetic energy solely depends on the temperature of the gas. With an increase in gas temperature, the average kinetic energy rises (this tells that the fifth statement is true). Despite the fact that certain gas molecules will always be travelling more quickly than others, the gas can still be represented by its average kinetic energy. Because kinetic energy is proportional to the square of the speed, the second claim—that the average speed of gas molecules rises with rising temperature—is derived from this.

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Answer: Pulley or a crane.

Explanation:

Answer:

An inclined plane would have to be too long, and a lever would be impractical. Pulleys are best used to raise objects.

Explanation:

The half-life of a radioisotope is 8 hours if 60 g of such a radioactive substance spontaneously degrades to 15 g after 16 hours.

Uranium is the most well-known illustration of a naturally occurring radioisotope. The only other form of naturally occurring uranium , uranium, which has three less electrons in its atom and is less permanent or radioactive, makes up the remaining 0.7%.

Utilized in investigations on the survival of red blood cells. used to sterilize medical equipment and to increase the dependability and safety of commercial fuel oil burners. used in radiography, food radiation, gauges, and treatment for cancer.

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We can see here that:

We see here that the bar graph will be more understandable if there is: A. Title.

Another thing that can aid in understanding the bar graph is: B. add pictures.

Using rectangular bars with heights or lengths proportional to the values they represent, a bar chart or bar graph displays categorical data. Both a vertical and a horizontal bar plot are possible. A column chart is another name for a vertical bar graph.

An appropriate question to guide Sarah's research will be: C. Which fixture uses the most water in our home?

To make this a real experiment, Sarah has to do the following: D. Collect and analyze data before and after the leaks are fixed.

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Answer:

80 m/s.

Explanation:

NOTE: This is a physics question. However, the solution to the question given below:

From the question given above, the following data were obtained:

Acceleration (a) = 2 m/s²

Initial velocity (u) = 20 m/s

Time (t) = 30 s

Final velocity (v) =?

The final velocity of the train can be obtained as shown below:

v = u + at

v = 20 + (2 × 30)

v = 20 + 60

v = 80 m/s

Therefore, the final velocity of train is 80 m/s.

Answer:

Synthesis is the Chemical reaction

_______________________________

If something is heretic, it refers to certain characteristics that is coded in our DNA. In science we know that this is possible through understanding the workings of the chromosomes & their functions.

_______________________________

Ionization energy : the minimum amount of energy demands to detach an electron from an isolated atom.

Ionization energy also known as potential energy.

The charge of the nucleus increases from side to side in a row and so there is an increase in the attraction in the middle of the nucleus and the surrounding electrons.  As we move from side to side in a periodic table from left to right, the nuclear charge increases. This is because of increasing nuclear charge, which concludes in the topmost electron being more strongly leap to the nucleus.

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Answer:

Valency is defined as the number of hydrogen atoms which combine directly or indirectly with one atom of an element.

Example:

One atom of nitrogen combines with three atoms of hydrogen to form ammonia gas. So, the valency of nitrogen is 3.

Yes I agree that N₂ is the limiting reagent.

Generally, limiting reagent is defined as a substance that does not allow a chemical reaction to take place completely. Basically, if in a chemical reaction limiting reagent is involved , then the atoms/molecules/ions of the other reactant with which it (limiting reagent ) combines will remain free or will remain unreacted.

Yes, I absolutely agree that N₂ is a limiting reactant because you can clearly see that in the right box that after the reaction N₂ gets completely consumed ( not left over ) and is not present in excess. So, N₂ is limiting reactant.

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Grignard synthesis of the alcohol shown involves the following reaction: CH2CH2Br + Mg + 2(C2H5)2O → CH2CH2MgBr + 2C2H5OHWhen we compare the equation with the reagents available, we can see that it requires CH2CH2Br and two molecules of C2H5OH.

From these, CH2CH2OH is synthesized. As the equation suggests that CH2CH2Br is the alkyl halide used, we can add CH2CH2Br and an aldehyde or ketone as a reactant. To draw the structural formulas for the reaction, follow the below guidelines: Step 1: Add an aldehyde or ketone Aldehydes and ketones are organic compounds containing carbonyl groups. They have the following formula: RCHO (aldehyde) and R2CO (ketone), respectively. An example of an aldehyde is formaldehyde, which has a structural formula HCHO. When we add HCHO to the reaction, the structural formula for the reactant becomes: CH2O.Step 2: Add an alkyl or aryl bromide The next step is to add an alkyl or aryl bromide to the reactant. An alkyl bromide is an organic compound containing a carbon-bromine bond, while an aryl bromide contains a bromine atom attached to an aromatic ring. The simplest example of an alkyl bromide is CH3Br, while the simplest aryl bromide is bromobenzene (C6H5Br). For this reaction, we will add CH2CH2Br as the alkyl bromide. The structural formula for the reactant becomes: CH2CH2Br + CH2OHere is the required structural formula in 100 words. The Grignard synthesis of the alcohol shown in the equation CH2CH2Br + Mg + 2(C2H5)2O → CH2CH2MgBr + 2C2H5OH requires CH2CH2Br and two molecules of C2H5OH. Therefore, we can add CH2CH2Br and an aldehyde or ketone to form the desired alcohol. For this purpose, we will use HCHO as an aldehyde and CH2CH2Br as an alkyl bromide. The structural formula for the reactant will be CH2CH2Br + CH2O.

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An individual would take approximately 4 grams of aluminum hydroxide, 4 grams of magnesium hydroxide, and 0.4 grams of simethicone in a 24-hour period when following the recommended dose of Maalox.

The recommended dose of Maalox is two teaspoons four times a day. Each 5.0-ml portion of Maalox contains 400. mg of aluminum hydroxide, 400. mg of magnesium hydroxide, and 40. mg of simethicone. To calculate how many grams of each substance an individual would take in a 24-hour period, we need to multiply the dose by the amount of each substance in one dose.

First, let's convert teaspoons to milliliters. Since 1 teaspoon is approximately equal to 5.0 ml, two teaspoons would be equal to 10.0 ml.

Next, we calculate the total amount of each substance in a 24-hour period:

Aluminum hydroxide: 400 mg x 10 (doses per day) = 4000 mg = 4 grams
Magnesium hydroxide: 400 mg x 10 (doses per day) = 4000 mg = 4 grams
Simethicone: 40 mg x 10 (doses per day) = 400 mg = 0.4 grams

Therefore, an individual would take approximately 4 grams of aluminum hydroxide, 4 grams of magnesium hydroxide, and 0.4 grams of simethicone in a 24-hour period when following the recommended dose of Maalox.

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Answer:

The answer is Magnesium

Answer:

its 24 cuz 13 + 11 =24. you're still walking 24 km in all. your going _|

Answer:

Example 1. One change I observed was when cooking, I needed to boil water. The water was later evaporated due to the increase of heat from the stove below the pot. Heat traveled and transferred from the stove to the pot then the water. This change is from liquid to gas.

Example 2. I was mixing sugar into my tea, the sugar dissolved into the tea. This is an example of dissolving a solid into a liquid. The tea took the properties of the sugar and turned the drink sweet.

Extra, taking a hot shower and steam leaves the shower. This change is of evaporation.

Explanation:

Hope this helps, even though it was late! <3 :)