Rank the following elements from largest to smallest atomic radius.
a. S
b. Na
c. Si
d. Ar
e. Al

Answer:

ice cream is matter

fear is non matter (it's a feeling not a  physical object)

laptop is matter

noise is non matter

wood is matter

hope this helps :)

When the waters are extremely oligotrophic  the carbon-14 method of determining primary productivity preferred over the oxygen bottle method

The light/dark bottle is a method for comparing dissolved oxygen concentrations before and after primary production. Bottles containing seawater tests with phytoplankton are brooded for a foreordained timeframe under light and dim circumstances.

To quantify complete essential efficiency, analysts frequently utilize the light-dim jug method. Since oxygen is produced during photosynthesis and used in respiration, this method uses changes in the concentration of dissolved oxygen to measure both processes.

Learn more about oligotrophic :

brainly.com/question/31461199

#SPJ4

Answer:

response variable is one

Calcium metal with chromium(III) chloride would react. Calcium metal is more reactive than chromium metal; therefore, putting calcium metal in chromium chloride would create a reaction, where as putting chromium metal in calcium chloride would not form any reaction.

The number of moles of NaF that will be produced from 3moles of Na is 3 moles.

Stoichiometry is the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, sodium reacts with fluorine as follows:

2Na+ F₂ → 2NaF

Based on the above equation, 2 moles of Na will produce 2 moles of NaF

This means that 3 moles of Na will produce 3 moles of NaF.

Learn more about stoichiometry at: https://brainly.com/question/9743981

#SPJ1

Explanation:

The amount of heat needed to raise the temperature of a substance can be calculated using the formula:

Q = mcΔT

where Q is the heat energy, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.

For water, the specific heat capacity is 4.184 J/g°C.

So, to find the heat energy required to raise the temperature of 3g of water by 22°C, we can plug in the values:

Q = (3g) x (4.184 J/g°C) x (22°C)

Q = 277.752 J

Therefore, it would take 277.752 J of heat energy to raise the temperature of 3g of water by 22°C.

Answer:, it would require 277.992 Joules of heat to raise the temperature of 3g of water by 22°C.

Explanation:

Q = m * c * ΔT

where Q is the amount of heat required, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.

For water, the specific heat capacity is approximately 4.184 J/(g°C).

Using this information, we can calculate the amount of heat required to raise the temperature of 3g of water by 22°C:

Q = 3g * 4.184 J/(g°C) * 22°C

Q = 277.992 J

Therefore, it would require 277.992 Joules of heat to raise the temperature of 3g of water by 22°C.

Answer:

Explanation:

my guess would be a severe allergic reaction hope this helped.

Tetanus vaccination can be associated with severe allergic reactions and wheezing among adolescents.

A tetanus vaccine can be described as a toxoid vaccine used to prevent tetanus. Five doses during childhood while a sixth given during adolescence are recommended.

After three doses, almost everyone is immune but additional doses every 10 years to maintain immunity. A booster shot must be given within 48 hours of an injury to people. If high-risk injuries are not completely immunized, tetanus antitoxin can also be recommended.

Pregnant women are up to date on tetanus immunization and each pregnancy can prevent maternal and neonatal tetanus. Redness and pain occur in between 25% and 85% of people. Fever, feeling tired, and minor muscle pain happen in less than 10% of people. Severe allergic reactions happen in less than one in 0.1 million people.

General side effects of the tetanus vaccine can be redness, fever, and swelling with soreness around the injection site.

Learn more about the tetanus vaccine, here:

https://brainly.com/question/27961450

#SPJ2

Answer:

Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word antibiotic means “against life.” Any drug that kills germs in your body is technically an antibiotic. An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria. One of the main medicines for relieving ear pain is acetaminophen — such as Children's TYLENOL® or Infants' TYLENOL® — not antibiotics. As with any medicine, ask your doctor which pain reliver is right for your child.Antibiotics are not available without a prescription in the United States. You will need to talk to a doctor or nurse practitioner to get a prescription. You can do this in person, over the phone, or over video. Amoxicillin is used to treat certain infections caused by bacteria, such as pneumonia; bronchitis (infection of the airway tubes leading to the lungs); and infections of the ears, nose, throat, urinary tract, and skin. It is also used in combination with other medications to eliminate H. The scientists have named the molecule “halicin”, in honour of HAL, the spooky AI system from 2001: A Space Odyssey. One of the researchers has described the “amazing” molecule as “arguably one of the more powerful antibiotics that has been discovered”.

Explanation:

Answer:

A. iron

Explanation:

I got a 100

The answer is A.

I know this information because I just took the unit test review on Edg.

The entropy of 1 mole of N2 molecules, considered as an ideal gas occupying a cubic volume of side 1 cm, is approximately 4:  62 J/K.

To find the entropy of 1 mole of N2 molecules, we need to use the formula for entropy:

S = R * ln(W)

Where:
S is the entropy
R is the gas constant
ln is the natural logarithm
W is the number of microstates or ways the system can be arranged

For an ideal gas, the number of microstates can be calculated using the formula:

W = (V^N) / (N!)

Where:
V is the volume
N is the number of molecules

Given that we have 1 mole of N2 molecules, which is approximately 6.022 x 10^23 molecules, and the volume of the cube is 1 cm^3, we can calculate the entropy.

First, let's convert the volume from cm^3 to m^3:

1 cm^3 = (1 x 10^-2 m)^3 = 1 x 10^-6 m^3

Now, we can substitute the values into the formula for W:

W = ((1 x 10^-6 m^3)^(6.022 x 10^23)) / (6.022 x 10^23)!

To simplify the calculation, we can use the fact that ln(W) is equivalent to ln((V^N) / (N!)) = ln(V^N) - ln(N!).

ln(W) = ln((1 x 10^-6 m^3)^(6.022 x 10^23)) - ln(6.022 x 10^23)!

ln(W) = (6.022 x 10^23) * ln(1 x 10^-6 m^3) - ln(6.022 x 10^23)!

Now, substituting the values of ln(1 x 10^-6 m^3) and ln(6.022 x 10^23) into the equation:

ln(W) = (6.022 x 10^23) * (-13.8155) - ln(6.022 x 10^23)!

Finally, we can use the value of the gas constant, R, which is approximately 8.314 J/(mol·K), to calculate the entropy:

S = R * ln(W) = (8.314 J/(mol·K)) * ((6.022 x 10^23) * (-13.8155) - ln(6.022 x 10^23)!)

learn more about entropy

https://brainly.com/question/6364271

#SPJ11

Answer:

100 and 1 atm

Explanation:

I think the gas is given kinetic energy only from its temperature

The order to understand the effects of adding CaCl2 to water, we need to discuss the concepts of boiling point elevation and freezing point depression. When a solute, such as CaCl2, is dissolved in a solvent, like water, the boiling point of the solution is generally higher than that of the pure solvent.

This is due to the solute particles interfering with the solvent molecules' ability to escape the liquid phase, requiring more energy (higher temperature) for the liquid to transition into the vapor phase. Freezing Point Depression Similarly, adding a solute like CaCl2 to a solvent like water will also lower the freezing point of the solution compared to the pure solvent.  Considering the given information, we have 0.50 moles of CaCl2 dissolved in 100g of H2O at 25°C and standard pressure. This solution, compared to the boiling point and freezing point of 100g of H2O at standard pressure, will have A higher boiling point: The presence of CaCl2 will cause the boiling point of the solution to be higher than that of pure water (100°Cat standard pressure. A lower freezing points the presence of CaCl2 will also cause the freezing point of the solution to be lower than that of pure water (0°Cat standard pressure). In summary, the solution containing 0.50 moles of CaCl2 in 100g of H2O at standard pressure will have a higher boiling point and a lower freezing point compared to 100g of pure water at standard pressure.

learn more about boiling point here.

https://brainly.com/question/13957339

#SPJ11

Boyle's Law

P₁V₁=P₂V₂

7.20 = 14.V₂

V₂ = 10 L

Answer:

3)N2, H2, Cl2........

The balanced equation shows a 1:1 ratio between zinc and nitric acid, we can conclude that 0.200 moles of zinc nitrate (Zn(NO3)2) will be produced.

When 2.10 g of zinc metal reacts with 250.0 ml of 0.800 M nitric acid solution, hydrogen gas and zinc nitrate (Zn(NO3)2) are produced.

To calculate the moles of zinc (Zn), we can use the formula: moles = mass / molar mass. The molar mass of zinc is 65.38 g/mol, so the moles of zinc can be calculated as follows:

2.10 g / 65.38 g/mol

= 0.032 moles.

Since the balanced equation shows a 1:1 ratio between zinc and hydrogen gas, we can conclude that 0.032 moles of hydrogen gas will be produced.

To find the moles of nitric acid (HNO3) in the solution, we can use the formula:

moles = concentration × volume.

The concentration is given as 0.800 M and the volume is 250.0 ml (which can be converted to 0.250 L).

Thus, the moles of nitric acid can be calculated as follows:

0.800 M × 0.250 L

= 0.200 moles.

Since the balanced equation shows a 1:1 ratio between zinc and nitric acid, we can conclude that 0.200 moles of zinc nitrate (Zn(NO3)2) will be produced.

To know more about balanced equation visit:-

https://brainly.com/question/7181548?

#SPJ11

Answer:

E

Explanation:

E

Erosion often change the shape of the land. Just as water and wind pass across land, they often carry away grains of soil and wear down rock. Years of this continuous process therefore reduces the size of the cliff, hills and mountains. It often cuts through the ground to form valleys, canyons and ditches.

Water erosion result in loss of topsoil, reduced crop yields, damaged infrastructure, weed dispersal etc.

Learn more from

https://brainly.com/question/12734041

the flow of water

Explanation:

it's actually b)

Answer:

No

Explanation:

They are also not considered "objects" in the traditional sense, as they cannot exist in a stationary state.

The same conditions of temperature and pressure, three different samples of the same uniform substance will have the same density.

The correct option is 2.

The mass of a specific material per unit volume is known as density. The equation for density is d = M/V, where d represents density, M is mass, and V is volume. Density is often expressed in grams per cubic centimeter.

Absolute density and relative density are the two main types of density. Relative density, also referred to as specific gravity, is the ratio of a product's density to the density of a reference material.

To know more about density visit:

https://brainly.com/question/6107689

#SPJ9

Answer:

City B has the larger annual temperature range

Explanation:

This is correct option because generally the northern side of the equator is high in temperature than the southern hemisphere part.

Since the southern side of the equator or Southern Hemisphere, where city A resides will generally have higher altitude or rise, so this creates higher average temperature.

The liquid form of chlorine used for emergency disinfection of small volumes is b. Sodium hypochlorite.

It is a strong disinfectant and is effective against a wide range of microorganisms. Sodium hypochlorite (NaClO) is an active ingredient in many household bleach products. It is a strong oxidizer that can quickly and effectively disinfect water of harmful bacteria, viruses, and other microorganisms. Sodium hypochlorite is available in varying concentrations and is typically added to the water at a rate of 1-2 mg/L (parts per million). This rate of chlorine addition will usually kill most bacteria in the water within 30 minutes. It is important to note that sodium hypochlorite can cause skin and eye irritation, so it is important to follow the directions for proper use and handling of the product.

learn more about Sodium hypochlorite Refer: https://brainly.com/question/10423391

#SPJ11

Answer:

layer of hot rock

hope it helps !

Answer:

2.52g

Explanation:

2.8g ÷ 100 = 0.028 x 90 = 2.52g

According to percent yield concept, 3.11 grams of hydrated iron (ii) sulfate crystals  are made from 2.8 g of iron if the yield is 100%. ​

Percent yield is defined as the ratio of actual yield to the theoretical yield multiplied by 100. If the actual and theoretical yield are same then the percent yield is 100%.If actual yield is less than the theoretical yield then the percent yield is less than 100%.Reason of this condition arising is the incompletion of reaction or loss of sample during recovery process.

In cases where percent yield is over 100% it indicates that more sample is recovered than the predicted amount.This condition arises when there are other simultaneous reactions taking place leading to the formation of product. It can also arise if there is incomplete removal of impurities from the sample .

If 2.80 g is 90% yield than for 100 % yield 2.80×100/90=3.11 g of iron (II) sulfate is needed.

Learn more about percent yield,here:

https://brainly.com/question/17042787

#SPJ2

Answer:

Explanation:

Titration: titrate twice, the first time with an indicator to determine how much sodium hydroxide is needed to completely react with hydrochloric acid, and the second time without an indicator to prevent the contamination of the sodium chloride salt produced

The partial pressure of the hydrogen gas, if the water vapor pressure is 3.17kPa is 91.83 kPa.

Dalton's law of gas states that total pressure of the mixture of gas is equal to the sun of the partial pressure of the individual gas.

Given that,

Total pressure of hydrogen gas = 95 kPa

Partial pressure of water vapor = 3.17 kPa

Partial pressure of hydrogen gas will be calculated as:
Partial pressure = 95 - 3.17 = 91.83 kPa

Hence required partial pressure is 91.83 kPa.

To know more about Dalton's law, visit the below link:

https://brainly.com/question/9211800

#SPJ1

The frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

The frequency and wavelength of a wave are related by the following equation:

λf = c

Where λ is the wavelength of the wave in meters, f is the frequency in Hertz, and c is the speed of light in a vacuum.

in this case, λ = 676 nm = 6.76 x \(10^{-7\) m

c = 299,792,458 m/s

Making f the subject of the formula:

f = c/λ

  = 299,792,458/6.76 x \(10^{-7\)

  = 4.43 x \(10^{14\) hertz

In other words, the frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

More on waves can be found here: https://brainly.com/question/29334933

#SPJ1

Answer:

D and A

Explanation:

While protons or electrons can be influenced by other charged particles, neutrons are not.

and

Neutrons are held tightly together with protons in the nucleus, so scientists could not observe the behavior of neutrons independently.

Answer:

See explanation

Explanation:

The magnitude of electronegativity difference between atoms in a bond determines whether that bond will be polar or not.

If the electronegativity difference between atoms in a bond is about 1.7, the bond is ionic. If the electronegativity difference is greater than 0.4 and less than 1.7, the bond will have a polar covalent character. Lastly, if the electronegativity difference between the bond is less than or equal to 0.4, the covalent bond is non polar.

The electronegativity difference between carbon and hydrogen is about 0.4 which corresponds to a nonpolar covalent bond hence the molecule is nonpolar.

The electronegativity difference between carbon and fluorine is about 1.5 indicating a highly polar bond. This gives CH3F an overall dipole moment thereby making the molecule polar.

Answer:

Thermal energy typically flows from a warmer material to a cooler material.

Explanation: