because of the difference in molar masses, any particle of gas a will be moving slower than any particle of gas b at the same temperature. True or False

Answer:

B. summer

Explanation:

The northern hemisphere experiences summer during the months of June, July, and August because it is tilted toward the sun and receives the most direct sunlight.

Answer:

compounds ok I think I can't anderstand good

Don't take your eyes for granted. Take these easy steps to keep your peepers healthy.

1. Eat Well

Good eye health starts with the food on your plate. Nutrients like omega-3 fatty acids, lutein, zinc, and vitamins C and E might help ward off age-related vision problems like macular degeneration and cataracts. To get them, fill your plate with:

Green leafy vegetables like spinach, kale, and collards

Salmon, tuna, and other oily fish

Eggs, nuts, beans, and other nonmeat protein sources

Oranges and other citrus fruits or juices

Oysters and pork

A well-balanced diet also helps you stay at a healthy weight. That lowers your odds of obesity and related diseases like type 2 diabetes, which is the leading cause of blindness in adults.

3. Wear Sunglasses

The right pair of shades will help protect your eyes from the sun's ultraviolet (UV) rays. Too much UV exposure boosts your chances of cataracts and macular degeneration.

Choose a pair that blocks 99% to 100% of UVA and UVB rays. Wraparound lenses help protect your eyes from the side. Polarized lenses reduce glare while you drive, but don’t necessarily offer added protection.

If you wear contact lenses, some offer UV protection. It's still a good idea to wear sunglasses for an extra layer.

4. Use Safety Eyewear

If you use hazardous or airborne materials on the job or at home, wear safety glasses or protective goggles.

Sports like ice hockey, racquetball, and lacrosse can also lead to eye injury. Wear eye protection. Helmets with protective face masks or sports goggles with polycarbonate lenses will shield your eyes.

5. Look Away From the Computer Screen

Staring at a computer or phone screen for too long can cause:

Eyestrain

Blurry vision

Trouble focusing at a distance

Dry eyes

Headaches

Neck, back, and shoulder pain

To protect your eyes:

Make sure your glasses or contacts prescription is up to date and good for looking at a computer screen.

If your eye strain won’t go away, talk to your doctor about computer glasses.

Move the screen so your eyes are level with the top of the monitor. That lets you look slightly down at the screen.

Try to avoid glare from windows and lights. Use an anti-glare screen if needed.

Choose a comfortable, supportive chair. Position it so that your feet are flat on the floor.

If your eyes are dry, blink more or try using artificial tears.

Rest your eyes every 20 minutes. Look 20 feet away for 20 seconds. Get up at least every 2 hours and take a 15-minute break.

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6. Visit Your Eye Doctor Regularly

Everyone needs a regular eye exam, even young children. It helps protect your sight and lets you see your best.

Eye exams can also find diseases, like glaucoma, that have no symptoms. It's important to spot them early on, when they're easier to treat.

Depending on your eye health needs, you can see one of two types of doctors:

Ophthalmologists are medical doctors who specialize in eye care. They can provide general eye care, treat eye diseases, and perform eye surgery.

Optometrists have had 4 years of specialized training after college. They provide general eye care and can diagnose treat most eye diseases. They don't do eye surgery.

Hopes this helped

The volume of the gas will be 560 mL when the pressure is reduced to 125.0 kPa, assuming the temperature remains constant.

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Substituting the given values, we get:

P₁ = 350.0 kPa (initial pressure)

V₁ = 200 mL (initial volume)

P₂ = 125.0 kPa (final pressure)

V₂ = ?

Solving for V₂, we get:

V₂ = ( P₁ × V₁ ) / P₂

V₂ = (350.0 kPa × 200 mL) / 125.0 kPa

V₂ = 560 mL

Therefore, the final volume of the gas is  560 mL.

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Answer:

The mass of sucrose in grams required to make  7% weight volume in 100 mL solution of water is 7g

Explanation:

The percentage weight of a solution is mostly referred to as percentage weight per volume (% w/v). The formula for this is

% w/v = g of solute/100 mL of solvent

sucrose is the solute here while water is the solvent. The mass (in grams) of the solute is the unknown

7% = g of solute/100 mL of water

where 7% equals/the same with 7/100;

7/100 = g of solute/100 mL of water

g of solute = 7 × 100/100

g of solute = 7 g

The mass of sucrose in grams required to make  7% weight volume in 100 mL solution of water is 7g

Answer:

both because water changes to ice in a freezer and liquid turns into gas when heated at a certain temperature

Answer:

C

Explanation:

is this one ok? XD

Answer:

5.2M, 5M, 0.975M, 28M

Explanation:

M = ( moles × 1000 ) ÷ volume

Molarity is affected by temperature. Its unit is mole/litre. It measure the concentration of any solute in a solution. Thus the molarity of \(KNO_{3}\),\(BaCl_{2}\),\(Na_{2}CO_{3}\) and\(C_{6}H_{12}O_{6}\) are 5.2mol/litre, 5mol/litre, 0.97mol/litre, 28mol/litre respectively.

Molarity can be calculated by dividing  number of moles of solute by volume of solution in liter.

Other concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution

Mathematically,

Molarity= number of moles of solute/volume of solution in litre (1)

1) Molarity of \(KNO_{3}\)= {1.30 mol ×(1000ml/l)}÷250.0 mL=5.2mol/litre

2)Molarity of \(BaCl_{2}\)= {0.500 mol  ×(1000ml/l)}÷100.0 mL=5mol/litre

3)Molarity of\(Na_{2}CO_{3}\)= {0.195 mol   ×(1000ml/l)}÷200.0 mL=0.97mol/litre

4)Molarity of \(C_{6}H_{12}O_{6}\) = {7.00 mol  ×(1000ml/l)}÷ 250.0 mL=28mol/litre

Thus the molarity of \(KNO_{3}\),\(BaCl_{2}\),\(Na_{2}CO_{3}\) and\(C_{6}H_{12}O_{6}\) are 5.2mol/liter, 5mol/litre, 0.97mol/litre, 28mol/litre respectively.

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Answer:

112 L O2.

Explanation:

Explanation:

CH4(g)+2O2(g)=CO2(g)+2H2O. 58.2l/22.4l=2.60moles CH4*2=5.20 moles H2O

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

This question is incomplete

Explanation:

This question is incomplete as the actual values are not provided however you can solve the question yourself if you have the actual value using the formulas below.

The formula for Molarity is

Molarity = number of moles (n) ÷ volume (in dm³ or Litre)

If number of moles is not given, to calculate for number of moles

number of moles (n) = given mass of NaOH ÷ molar mass of NaOH

Please NOTE that the volume MUST be converted to dm³ (or litre) if not provided in dm³.

The unit for Molarity is mol/dm³ or mol/L or M (molar concentration).

Average molarity = (Trial 1 + Trial 2 + Trial 3)/ 3

Answer: The Marshmellow

Explanation

The marshmallow turns from a solid to a gooey texture.

Answer:

the answer woul be 89 if you do the math right

Explanation:

Answer:

It will lead to a decrease in the boiling points

Explanation:

Decreasing the pressure exerted on a compound reduces d boiling points because a high temperature is needed also to boil a compound

The boiling points of two compounds differ by 60°C at atmospheric pressure, the effect on the relationship by decreasing the pressure to 1mm  is the boiling point will decrease with decreasing the atmospheric pressure.

Boiling point is defined as the temperature at which the pressure exerted by the surrounding upon a liquid is equaled by the pressure exerted by the pressure of the liquid, under this condition addition of heat results in the transformation of the liquid into its vapors without raising the temperature.

Boiling point is also defined as the temperature at which vapor pressure of the liquid become equal to the atmospheric pressure.

Thus, the boiling points of two compounds differ by 60°C at atmospheric pressure, the effect on the relationship by decreasing the pressure to 1mm  is the boiling point will decrease with decreasing the atmospheric pressure.

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The kinetic energy of a 23.2-g object moving at a speed of 98.7 m/s is  113.30 J. Option D

The kinetic energy of an object can be calculated using the formula: KE = (1/2)mv^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity or speed of the object.

Given:

Mass (m) = 23.2 g = 0.0232 kg

Speed (v) = 98.7 m/s

Substituting these values into the formula, we can calculate the kinetic energy:

KE = (1/2)(0.0232 kg)(98.7 m/s)^2

KE = (1/2)(0.0232 kg)(9756.09 m^2/s^2)

KE ≈ 113.30 J

Therefore, the kinetic energy of a 23.2-g object moving at a speed of 98.7 m/s is approximately 113.30 J.

It's worth noting that the question is repeated twice, but the answer remains the same. The kinetic energy of the object is determined by its mass and speed, and both calculations yield the same result. Option D

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Answer:

Acceleration is a derived quantity because it depends on fundamental quantities.

Answer:

nitrogen oxide

Explanation:

The question requires us to identify the atomic mass of potassium, as shown in the periodic table.

The periodic table of elements, as shown below, shows basic information on all chemical elements. The atomic mass is usually shown on the top of the element symbol:

We can identify the element potassium (K) on the first column and fourth line of the table. The number that appears above the symbol "K" refers to its atomic mass. We can see in the table that the atomic mass of potassium is 19 (letter D).

Answer:

A urina passa pelos ureteres pareados para a bexiga urinária, que é ventilada periodicamente na cloaca. Todos os resíduos do corpo deixam o corpo pela cloaca, que termina em uma cloaca.

Answer:

252 g KOH.

Explanation:

a. First, let's see the formula of molarity:

Remember that the volume must be in liters. 1 L equals 1000 mL, so the conversion is:

We want to find the grams of solute, so we can find initially the moles of solute, so let's solve for moles of solute and replace the given data:

The molarity is 3 M and the volume is 1.5 L:

Now that we have this value, we can find its mass by using its molar mass. (The molar mass of KOH is 56 g/mol. You can calculate the molar mass of a compound using the periodic table). The conversion would be:

We require 252 g of KOH.

Explanation:

atomic mass of Na = 23 amu

atomic mass of Cl = 34.5 amu

so atomic mass of NaCl is about 57.5 amu

this means that 1 mol of NaCl has a mass of 57.5 g

meaning the ans is 121 / 57.5

Answer:

oxidation-reduction or redox reaction

Explanation:

n

Making a pesticide from a 5-atom alkane to an 18-atom molecule requires a complex process involving many steps and various reactions.

There are many different insecticides on the market, each with a unique chemical composition and mode of operation. The desired end product will determine the exact reactions and conditions needed to make a pesticide from the alkane. In general, making a pesticide from an alkene requires several important steps, including oxidation, halogenation, and cyclization. The first step is the oxidation or halogenation of the alkene to produce a more reactive intermediate.

Therefore, the correct option is D.

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Your question is incomplete, most probably the complete question is:

The processes which are used to convert alkane consists of 5 atoms to insecticide consists of (18) atoms are

a) strong heating then rapid quenching then halogenation then polymerization

b) polymerization then halogenation then strong heating then rapid quenching

c) strong heating then rapid quenching then polymerization then halogenation halogenation then rapid quenching then strong heating then polymerization​

d) The synthesis of an insecticide from an alkane with 5 atoms to a molecule with 18 atoms requires multiple steps and the specific reactions and conditions used will depend on the insecticide being synthesized.

The chemical equation for dissociation of cadmium chloride is CdCl₂\(_(aq)\) \(\rightarrow\)Cd\(^+_(aq)\) +2 Cl\(^-\)\(_(aq)\).

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:

Answer is 1: Electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

Option 1 offers the best justification for why two negatively charged balloons travel apart but never touch: Electric charges may exert pressures on other things without ever contacting them because of the electric fields that surround them.

This is because electric charges generate electric fields that, even when they are not in contact with other things, may push and pull on them. This is because electric fields—invisible lines of force that emerge from an electric charge and radiate out—can interact with other electric charges as well as physical things.

One balloon's electric field will interact with the electric field of the second balloon, pushing the two balloons apart. Because electrons do not leap from one balloon to another, Option 2 is inaccurate.Because electrons do not leap from one balloon to the next, Option 2 is untrue. Instead, the balloons are forced apart by the interaction of the electric fields.

Option 3 is erroneous because charged particles do not fill the void between the items. Instead, the electric charges cause electric fields to fill the area. Option 4 is erroneous because charged objects do not transmit tiny electron lightning bolts across the space between the two balloons, which brings us to our last error.

Instead, the balloons are forced apart by the interaction of the electric fields.

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Mass in grams of 3.07 moles of glucose is 553.3 g (rounded to three significant figures).

What is Mass?

Mass is a fundamental physical property of matter that quantifies the amount of matter in an object. It is a measure of the resistance of an object to acceleration when a force is applied to it. In other words, mass is the amount of substance in an object, and it determines how much gravity will affect that object.

To determine the mass in grams of 3.07 moles of glucose (C6H12O6), we need to first calculate the molar mass of glucose, which is the sum of the atomic masses of all the atoms in its chemical formula:

Molar mass of C6H12O6 = 6(12.01 g/mol) + 12(1.01 g/mol) + 6(16.00 g/mol) = 180.18 g/mol

Next, we can use the following conversion factor to convert moles to grams:

mass (g) = number of moles x molar mass (g/mol)

mass = 3.07 mol x 180.18 g/mol = 553.3 g

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Better temperatures can growth the quantity of water vapor withinside the air, that could growth the probability of precipitation.

Different factors, inclusive of air pressure, wind, and atmospheric instability, additionally play a function withinside the formation of rain, and the connection among temperature and precipitation may be complicated. The temperature of atmospheric gases could have a substantial effect at the manufacturing of rain. The environment is a complicated device that performs a vital function with inside the Earth`s water cycle, which incorporates the system of precipitation, inclusive of rain. Precipitation takes place while water vapor with inside the air condenses into liquid droplets or ice crystals, which fall to the floor as rain, snow, or hail. The temperature of the environment impacts the quantity of water vapor that the air can preserve. As temperature increases, the air can preserve extra water vapor, that could cause better tiers of humidity. When the air will become saturated with water vapor, it reaches its dew point, and the extra water vapor condenses into liquid droplets or ice crystals, that could shape clouds and subsequently precipitation. In addition, international warming, that's inflicting an growth in atmospheric temperatures, can cause modifications in precipitation styles and extra severe climate events. Understanding the connection among temperature and precipitation is vital for predicting and mitigating the affects of weather change.

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Answer:

A) Chlorine (Cl)

B) Cobalt (Co)

C) Caesium (Cs)

Hope this helps.

The abbreviated electron configurations that was given in the question belongs to

Chlorine (Cl)

Cobalt (Co)

Caesium (Cs) respectively.

Therefore, electron configurations  explain orbitals of an atom when it is in it's ground state.

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Answer:

it's the 2 I'm pretty sure

Explanation:

please give me a heart

Answer:

Explanation:

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