if the specific gravity of the yellow manometer fluid is sg = 0.90 and the deflection is h = 0.7 what is the velocity of the fluid in ft/s

Answer:

In the Periodic Table A period are the rows on the table.

Answer:

Element Symbol Atomic

Number Atomic Mass Protons Neutrons Electrons

copper Cu 29 64 29 35 29

tin Sn 50 119 50 69 50

iodine I 53 127 53 74 53

uranium U 92 238 92 146 92

potassium K 19 39 19 20 19

lithium Li 3 7 3 4 3

oxygen O 8 16 8 8 8

gold Au 79 197 79 118 79

sulfur S 16 32 16 16 16

silver Ag 47 108 47 61 47

chromium Cr 24 52 24 28 24

cobalt Co 27 59 27 32 27

nickel Ni 28 59 28 31 28

zinc Zn 30 65 30 35 30

aluminum Al 13 27 13 14 13

mercury Hg 80 201 80 121 80

platinum Pt 78 195 78 117 78

iron Fe 26 56 26 30 26

hydrogen H 1 1 1 0 1

helium He 2 4 2 2 2

beryllium Be 4 9 4 5 4

magnesium Mg 12 24 12 12 12

carbon C 6 12 6 6 6

silicon Si 14 28 14 14 14

chlorine Cl 17 35 17 18 17

bismuth Bi 83 209 83 126 83

boron B 5 11 5 6 5

calcium Ca 20 40 20 20 20

manganese Mn 25 55 25 30 25

lead Pb 82 207 82 125 82

sodium Na 11 23 11 12 11

fluorine F 9 19 9 10 9

phosphorus P 15 31 15 16 15

Explanation:

Answer b

Explanation:

Answer:

Both are only physical changes

The main site for water reabsorption along the nephron is the renal tubules

Particularly the proximal tubule and the descending limb of the loop of Henle. As filtrate flows through the renal tubules, water and solutes are selectively reabsorbed into the bloodstream, with the majority of water reabsorption occurring in the proximal tubule. In this region, water is reabsorbed via osmosis, facilitated by the presence of aquaporin channels in the apical and basolateral membranes of the tubule cells. The descending limb of the loop of Henle is also important for water reabsorption, as it is permeable to water but not solutes, allowing for the creation of a concentration gradient that facilitates water reabsorption in the later parts of the nephron.

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One molecule of NaBH4 can reduce only two molecules of benzil because only two of the four available hydride ions in NaBH4 participate in the reaction. This limitation is due to the selective nature of the reaction and steric hindrance caused by the bulky boron-hydrogen bonds in NaBH4.

Sodium borohydride (NaBH4) is a reducing agent commonly used in organic chemistry.

Benzil is a compound that contains two carbonyl (C=O) groups. When NaBH4 reacts with benzil, it donates a hydride ion (H-) to each carbonyl group, reducing them to alcohols.

One molecule of NaBH4 has four hydrogen atoms attached to the boron atom, and it can donate one hydride ion per hydrogen atom.

However, the reaction with benzil is selective, meaning that only two of the four hydride ions in NaBH4 participate in the reduction of two molecules of benzil. This selectivity is due to the steric hindrance caused by the bulky boron-hydrogen bonds, which prevents the remaining two hydride ions from being utilized in the reaction.

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Answer:

B

Explanation:

Its nucleus is identical to an alpha particle, and consists of two protons and two neutrons. Alpha decay of heavy elements in the Earth's crust is the source of most naturally occurring helium-4 on Earth, produced after the planet cooled and solidified.

Answer: B. An Alpha particles

As helium is consist of 2 protons and 2 neutrons

Alpha particles, also consist of 2 protons and 2 neutrons bound together into a particle that's why identical to a helium-4 nucleus.

Answer:

Explanation:

55 and 918

Answer:

Crystals of copper sulfate can be obtained from the salt solution through a process called crystallization. The steps involved are:

Prepare a saturated solution of copper sulfate by dissolving the salt in water until no more can dissolve.

Heat the solution to evaporate some of the water, which will increase the concentration of the salt.

Allow the solution to cool slowly. As it cools, the solubility of the salt decreases and it will start to form crystals.

Use a filter or strainer to separate the crystals from the remaining liquid. This process is called filtration.

Wash the crystals with a small amount of cold water to remove any impurities that may be present.

Leave the crystals to dry on a filter paper or in a drying oven.

After following these steps, pure crystals of copper sulfate can be obtained from the salt solution.

Explanation:

answer :

this is the structure if you want it

When silver carbonate (Ag₂C₃) dissolves in water, it dissociates into silver ions (Ag+) and carbonate ions (CO₃ 2-).

When silver carbonate (Ag₂C₃) dissolves in water, it dissociates into its constituent ions. The formula unit of silver carbonate consists of two silver ions (Ag+) and one carbonate ion (CO₃ 2-). When silver carbonate is added to water, the ionic bonds between the silver and carbonate ions are broken, resulting in the release of Ag+ and CO₃ 2- ions into the solution. The Ag+ ions carry a positive charge, while the CO₃ 2- ions carry a negative charge, and these ions become solvated in the water.

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Answer:

1st question: The moon is closer to Earth so it is easier to see and visit.

2nd question: The moon has a week/month cycle instead of a day/night cycle.

3rd question: The corona

Explanation:

The mass of the 2.34 × 10²³ atoms of copper is equal to 24.68 grams.

The Avogadro constant can be defined as the proportionality factor that the number of constituent particles in a sample with the amount of substance.

Avogadro’s number can be described as a dimensionless number that represents the number of entities in one mole of any substance. These elementary entities can be molecules, atoms, ions, electrons, or protons, etc.

Avogadro’s constant has a value approximately equal to 6.022 × 10²³ mol⁻¹.

Given, the number of atoms of copper = 2.34 × 10²³

The atomic mass of Cu Copper = 63.5 g/mol

So 6.022 × 10²³ atoms of Cu have mass = 63.5 g

Then 2.34 × 10²³  Cu atoms will have mass = \(\frac{63.5 \times 2.34 \times 10^{23}}{6.02 \times 10^{23}}\) = 24.68 g

Therefore, 24.68 grams of Cu are there in 2.34 × 10²³ atoms of Cu.

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To determine the volume of N2(g) produced by the complete decomposition of 1 mole of nitroglycerin (C3H5N3O9), we need to consider the balanced chemical equation for the decomposition reaction.

The balanced equation for the decomposition of nitroglycerin is as follows:

4 C3H5N3O9(s) → 12 CO2(g) + 10 H2O(g) + 6 N2(g) + O2(g) From the balanced equation, we can see that for every 4 moles of nitroglycerin, 6 moles of N2(g) are produced. Since we are considering the decomposition of 1 mole of nitroglycerin, we can use this ratio to determine the moles of N2(g) produced, which is 6/4 = 1.5 moles of N2(g). Now, at STP (Standard Temperature and Pressure), 1 mole of any ideal gas occupies 22.4 liters. Therefore, 1.5 moles of N2(g) would occupy approximately 33.6 liters

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Reaction.-

2H2 + O2 ---> 2H2O

Given,

Mass of Oxygen - 25.0 g

Mass of Hydrogen - 42.0 g

now we have to calculate moles

moles of O2 = 25/16 = 1.5625 moles

Moles of H2 = 42/2 = 21 moles

Hydrogen gas is in excess,

now using reaction

1 mole of oxygen gas forms 2 moles of H2O

1.5625 mole of Oxygen gas will form x mole of H20

x = 3.125 moles

molar mass of H2O is 18g

mass of 3.125moles of water = 3.125 × 18 = 56.25 g.

Hence the mass of water produced when 25.0g of oxygen gas react with 42.0g of hydrogen gas is 56.25 grams

Answer:

Time taken 172.8 years

Explanation:

Given data:

Total amount of strontium-90 = 1000.0 g

Amount left = 15.625 g

Half life of strontium = 28.8 years

Time taken = ?

Solution:

Number of half lives:

At time zero = 1000.0 g

At first half life = 1000.0g/2 = 500 g

At second half life = 500 g/2 = 250 g

At third half life = 250 g/ 2 = 125 g

At 4th half life = 125 g/ 2= 62.5 g

At 5th half life = 62.5 g/2 = 31.25 g

At 6th half life = 31.25 g / 2 = 15.625 g

Time taken:

Time taken = number of half lives × half life

Time taken = 6×28.8 years

Time taken = 172.8 years

A)1.75×3 moles of carbon monoxide

B)2:3

A)each mole of ferric oxide requires 3 moles of carbon monoxide. Therefore 1.75 moles requires 1.75 ×3 moles of carbon monoxide

The matter is made up of various types of particles which have a physical state and have inertia.

1. Matter is colour less. (false)

2. Matter is hard in structure. (true)

3. Matter is soluble. (true)

4. Matter can not conduct electricity. (false)

5. Matter has boiling point but not melting point. (false)

6. Matter has both boiling and melting point. (true)

7. Matter has not the density. (false)

8. Matter has the malleability. (true)

Matter is made up of different kinds of particles which can occupy space and they have some mass. All the matters are made up of the elements. The elements contain specific physical and chemical properties. the matter can not be broken by any ordinary chemical reaction.

So we can conclude that the matter is made up of various types of particles which have a physical state and have inertia.

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Answer:

23,900 joules

Explanation:

plato answer

Answer:

23,900 joules

Explanation:

Edmentum

Some people practice brining their turkey. This means they let it soak in a solution overnight. The solution diffuses into the turkey. This means that the turkey is placed into a hypertonic solution.

A hypotonic solution is described as a solution that has lower osmotic pressure than another solution to which it is compared.

The concept of tonicity helps us understand that the saltwater we use to brine the turkey is typically considered hypertonic solution because it has a greater concentration of solutes than the liquid found inside the cells.

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Answer:Explanation:

The Roman numeral must have the same value as the charge of the ion. In our example, the transition metal ion Fe2+ would have the name iron(II). Add the name of the anion to the transition metal ion. In our example, FeCl2 would have the name iron(II) chloride since the anion is Cl-, which has the name chloride.

Answer:

The density of B is 11/14 = 0.79 g/cm³

It will float in water

"Group analysis" is a well-known qualitative analysis method that is used with NaBiO3 for this objective. Its distinctive characteristics are by subjecting a mixture of cations to a series of reagent treatments.

Zn has a larger negative reduction potential than Mn. As a result, if we add a potent oxidising agent, Mn+2 will remain unaffected and Zn will be preferentially oxidised to its +2 oxidation state. We may then segregate the two species as a result.

As a result, we can separate the two species by adding NaBiO3 to the solution of Mn+2(aq) and Zn+2(aq). Zn+2 will be converted by the NaBiO3 to Zn(OH)4 and precipitated out of the solution, but Mn+2 will remain in the solution as Mn(OH)2. Zn+2 cannot be oxidised by the other specified reagents since they lack potent enough oxidising abilities.

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A system's equilibrium will move to the right, or toward the side of the products, in accordance with Le Chatelier's principle, if more reactants are added. ... The equilibrium will move to the left if we add more product to a system, producing more reactants.

Solution: By increasing the number of reactants, the equilibrium moves to the right and in the direction of the products.

Thus, if a reactant is added, equilibrium shifts to the right, away from the reactant. Equilibrium shifts to the left, away from the product, when a product is added. If we take away the product, equilibrium returns and produces the product. Reactant is created if reactant is removed, breaking the equilibrium.

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Answer:

the right answer is first one

AnswerElement Symbol # of Atoms

Magnesium Mg 1

Oxygen O 4

Sulfur S 1

:

Explanation: