can you pls tell me the net ironic equation of H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq)+SO²⁻₄(aq) + H₂O(l)
please its urgent

Answer:

The volume will be less.

Explanation:

The volume of urine someone produces varies based on their liquid intake. The more liquid you intake, the more you must urinate (not a direct correlation, but basically).

An atom of vanadium (V)  has 23 electrons.

Given :

A vanadium (V) atom with 23 protons and has a net charge of 0.

To find:

The number of electrons in a vanadium atom

Solution:

Number of protons in vanadium atom = 23

The 0 net charge on the atom indicates that the atom has an equal number of protons and electrons which makes it a neutral atom.

Number of electrons in vanadium atom = Number of protons in vanadium atom = 23

An atom of vanadium (V)  has 23 electrons.

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The concentration of the FeSO4 solution in molarity would be 0.4356

The concentration can be derived first by writing out the balanced equation of the reaction:

From the balanced equation: for every 1 mole of KMnO4, 5 moles of FeSO4 is needed for complete oxidation.

Recall that: mole = molarity x volume

Mole of KMnO4 needed = 0.1327 x 0.01642

                  = 0.002179 mole

1 mole KMnO4 = 5 mole FeSO4

0.002178 mole = 5 x 0.002178/1

                             = 0.01089 moles of FeSO4

Molarity of FeSO4 = mole/volume

                                 = 0.01089/0.025

                               = 0.4356 M

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Answer:

The answer is (e) none of the above. The combined gas law relates the pressure, volume, and temperature of a gas, so all three variables (pressure, volume, and temperature) must be considered and at least one of them should be held constant to use the combined gas law. The mass of the gas sample, number of moles of gas, and number of gas molecules are not directly related to the combined gas law.

Answer:

A  consumer is an organism that eats other organisms to gain energy; it is also called  a heterotroph.

A  producer is an organism that makes its own food; it is also called  an autotroph.

A  decomposer is an organism that breaks down waste and dead organisms.

Explanation:

Green plants are examples of autotrophs that make their own food by photosynthesis - they don't rely on other organisms to provide them with energy.

In contrast, many organisms rely on other organisms as an energy source. These organisms are called consumers or heterotrophs. They consume producers and other consumers.

Decomposers such as some fungi, bacteria, and certain insects break down dead or decaying biological material and recycle the nutrients back into the soil.  

Answer:consumer a heterotroph producer an autotroph decomposer

Explanation:

Answer:

The final concentration of the Randyne in grams per milliliter = 0.011 g/mL

Explanation:

As we know

C1V1 = C2V2

C1 and C2 = concentration of solution 1 and 2 respectively

V1 and V2 = Volume of solution 1 and 2 respectively

Substituting the given values, we get -

\(50 * 15 = X * (15+50)\\X = 11.54\) mg/mL

The final concentration of the Randyne in grams per milliliter = 0.011 g/mL

The final concentration of the Randyne in this solution is 0.01 g /mL.

It is very important to know the dilution methods in a chemistry lab. The dilution from the stock solution can be prepared by using the formula,

\(C_1V_1 = C_2V_2\)

Where,

\(C_1\)- concentration of the stock solution

\(V_1\) - the volume of the stock solution

\(C_2\) - concentration of the diluted solution

\(V_2\) - the volume of diluted solution

Put the values in the formula,

\(50 \times 15 = C_2 \times 75 \\\\C_2 = \dfrac {750}{75 }\\\\C_2 = 10{\rm \ mg/mL \ \ \ or} \\\\ C_2 = 0.01 \rm \ g/mL\)

Therefore, the final concentration of the Randyne in this solution is 0.01 g /mL.

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Answer:

True

Explanation:

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After analysing the given options and data we conclude that the matching of the given options  as  

1) Proposed by Nicolaus Copernicus and Aristarchus - heliocentric model
2) Proposed by Aristotle - 3) geocentric model
3) geocentric model - A) Earth at the center of the universe
4) The universe started from a single point - C) Big Bang Theory
5) Proposed by George Lemaitre - C) Big Bang Theory
6) The sun at the center of the universe - 3) geocentric model
7) heliocentric model - 6) The sun at the center of the universe

The Big Bang Theory is a scientific explanation regarding the original creation of the universe. The theory is based on several key assumptions, one of which is the isotropy of the universe. This assumption projects that the universe, more or less, appears the same in all directions of time and space.

Another key theory is that of cosmic inflation, which projects why the universe is so symmetrical on such a significant scale.
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Magnesium is not a good conductor. Hence, the conductivity of magnesium is not good.

Magnesium is placed in group 2 of the periodic table. It has 2 valence electrons which are in the fully filled s-subshell. When the subshell is fully filled, the electrons are not available to move to conduct. For example, group 1 has half filled subshell which allows the electrons to move.

But, how does magnesium conduct? As its subshell is fully filled and therefore no electrons are available to move.

In group 2 metals, there is a property called s-p hybridization. The s- and p- subshells overlap so that metals can now move to the unfilled states of the p-subshell.

Hence, magnesium is not a good conductor.

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Answer:

14.9 mol

Explanation:

To find the number of moles in a given mass of a sample of sodium chloride (NaCl), we can multiply the number of grams in the sample by the molar mass of sodium chloride, which is 58.44 g/mol.

871 g × (1 mol / 58.44 g)

= 871/58.44 mol

≈ 14.9 mol

Note that we rounded to 3 significant figures in the final answer because that is how many significant figures were given in the mass measurement of the sodium chloride sample.

Answer:

witch one witch species witch bone of 1 and 2

Answer:

Yes, process 1 has an advantage over process 2 for the planarian worm. Process 1 requires only one parent. If the planarian can’t find a mate, the life cycle will continue because it can still reproduce.

Explanation:

i did it

Answer:

B - convergent destructive (subduction)

Explanation:

option A is not a plate boundary. A constructive plate boundary moves away from eachother and a convergent collision boundary would suggest no slipping whereas a convergent destructive boundary has subduction take place which is when a denser plate slips under a less dense plate.

A) The chemical symbol for the ion is Fe+

B) It has 20 electrons in total, and there are 6 3p electrons in the ion.

C) There are 6 electrons present in the 3p orbital.

The atomic cation with the given electron configuration is represented by the chemical symbol Fe+.

To determine the number of electrons in the ion, we need to count the electrons present in the electron configuration. In the given configuration, we can see that the 1s orbital has 2 electrons, the 2s orbital has 2 electrons, the 2p orbital has 6 electrons, the 3s orbital has 2 electrons, the 3p orbital has 6 electrons, the 3d orbital has 1 electron, and the 4s orbital has 1 electron. Adding up these numbers, we have:

2 + 2 + 6 + 2 + 6 + 1 + 1 = 20

Therefore, the ion has 20 electrons.

To determine the number of 3p electrons in the ion, we look at the 3p orbital. In this case, there are 6 electrons present in the 3p orbital.

In summary, the chemical symbol for the ion is Fe+, it has 20 electrons in total, and there are 6 3p electrons in the ion.

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Answer:

a. 969.1 R

b. 2237 ft/s

Explanation:

First the apparent specific heats are determined from the mass fractions of the gases:

\(c_{p} &=\left(\mathrm{mf} c_{p}\right)_{\mathrm{N}_{2}}+\left(\mathrm{mf} c_{p}\right) \mathrm{CO}_{2} \\ &=(0.65 \cdot 0.248+0.35 \cdot 0.203) \frac{\mathrm{Btu}}{\mathrm{lbm} \mathrm{R}} \\ &=0.232 \frac{\mathrm{Btu}}{\mathrm{lbmR}} \\ c_{v} &=\left(\mathrm{mf} c_{v}\right)_{\mathrm{N}_{2}}+\left(\mathrm{mf} c_{v}\right)_{\mathrm{CO}_{2}} \\ &=(0.65 \cdot 0.177+0.35 \cdot 0.158) \frac{\mathrm{Btu}}{\mathrm{lbmR}} \\ &=0.170 \frac{\mathrm{Btu}}{\mathrm{lbmR}}\)

The isentropic coefficient then is:

\(k &=\frac{c_{p}}{c_{v}} \\ &=\frac{0.232}{0.17} \\ &=1.365\)

The final temperature is determined from the isentropic nozzle efficiency relation:

\(T_{2} &=T_{1}-\eta_{N}\left(T_{1}-T_{2 s}\right) \\ &=T_{1}\left(1-\eta_{N}\left(1-\left(\frac{P_{2}}{P_{1}}\right)^{(k-1) / k}\right)\right) \\ &=1400\left(1-0.88\left(1-\left(\frac{800}{100}\right)^{(1.365-1) / 1.365}\right)\right) \mathrm{R} \\ &=969.1 \mathrm{R}\)

b. The outlet velocity is determined from the energy balance:

\(h_{1} &+\frac{v_{1}^{2}}{2}=h_{2}+\frac{v_{2}^{2}}{2} \\ v_{2} &=\sqrt{2 c_{p}\left(T_{1}-T_{2}\right)} \\ &=\sqrt{2 \cdot 0.232(1400-969.2) \cdot 25037} \frac{\mathrm{ft}}{\mathrm{s}} \\ &=2237 \frac{\mathrm{ft}}{\mathrm{s}}\)

A light wave in a medium has a wavelength of 5107 m and a frequency of 41014 Hz.

Its frequencies range from 4 to 8 hertz (Hz), or cycles per second, and its wavelengths range from 380 nanometers (nm), or 1.5 nm, to 740 nm, or 2.9 to 105 inches.

The parts of the electromagnetic spectrum are designated as follows, from highest to lowest energy: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. The radio wave region of the electromagnetic spectrum includes microwaves (such as those found in microwave ovens).

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0.0796M

Using the dilution formula:

where:

C1 and C2 are the initial and final concentration

V1 and V2 are the initial and final volume

Given the following parameters

C1 = 0.875M

V1 = 45.5mL

V2 = 500mL

Required

Final concentration C2

Substituting the given parameters into the formula

Hence the final concentration is 0.0796M

Choosing a biome for a research project can provide a wealth of opportunities to better understand the natural world and contribute to important conservation and management efforts.

There are several convincing reasons for researchers to choose a particular biome for their project, some of which include:

Biodiversity: Biomes are characterized by their unique plant and animal species, which can provide a diverse range of research opportunities, including studying their adaptations, behaviors, and interactions.

Climate Change: Biomes are also influenced by climate change, making them an important area of research to better understand how these ecosystems are being affected by changes in temperature and precipitation patterns.

Human Impacts: Human activities, such as deforestation, agriculture, and urbanization, can have a significant impact on biomes. Studying these impacts can help researchers better understand how to mitigate and manage these effects.

Biogeochemical Cycles: Biomes are also important for studying biogeochemical cycles, such as the carbon and nitrogen cycles, which are essential for sustaining life on Earth.

Conservation: Finally, studying biomes can also contribute to conservation efforts, helping to preserve these unique ecosystems and the species that inhabit them.

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Answer:

Metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). The change occurs primarily due to heat, pressure, and the introduction of chemically active fluids.

Explanation:

i hope this helps :)

Different types of matter have different requirements because the pressure and temperature of a substance's environment dictate its phase.

Matter is anything that occupies space and has mass. The states or phases of matter include solids, liquids, gases, and plasma. Any material in a form that has a distinct shape and volume is referred to as a solid. Phase change refers to a shift in the condition of matter. Phase shifts can be carried out by people and occur frequently in nature.

A set of molecules will experience various movements, such as vibrations, rotations, and translations, depending on the average temperature in their vicinity.

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Answer:

Roman numeral notation indicates charge of ion when element commonly forms more than one ion. For example, iron(II) has a 2+ charge; iron(III) a 3+ charge.

Explanation:

Covalent and ionic bonds refer to atoms joined by their electrons. In covalent bonds, electrons are shared by the involved non-metal atoms. Option 2 is correct. Occurs due to the sharing of electrons between two non-metal atoms.

Both of them, covalent and ionic bonds, are chemical bonds that can form between atoms.

Ionic bonds occur between atoms with different electronegativity. When they bind, they transfer electrons from one atom to the other creating ions with opposite charges that attract each other.

Ionic compounds are formed by anions and cations.

• Cations are positive ions derivated from metals.

• Anions are negative ions derivated from non-metals.

The metal atoms share its electrons with the non-metal ones, creating stable configurations. Ionic bonds do not create molecules.

Covalent bonds are formed between atoms share electrons to be more stable. Atoms involved share electrons equally, creating a strong bond between them.

Covalent bonds are usually formed between non-metal atoms.

Option 2 is correct. Occurs due to the sharing of electrons between two non-metal atoms

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Complete question

A template of a Venn diagram representing common and differentiating characteristics of covalent and ionic bonds is shown.

Which of the following characteristics can be written only in space C?

On the diagram,

Options,

Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.

Alcohol can swiftly cross the blood-brain barrier after it is ingested, having an impact on the brain and neurological system. Depending on the quantity and frequency of drinking, alcohol's effects on the brain can range from minor disturbances in judgment and coordination to more serious consequences including loss of consciousness and, in the worst circumstances, death.

Long-term changes in brain structure and function, such as cognitive impairment and a higher chance of developing specific neurological and mental illnesses, can also result from chronic alcohol consumption.

Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.

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Answer:

* \(\Delta T_B=1.286\°C\)

* \(m=2.5m\)

* \(n=0.05mol\)

* \(M=59.76g/mol\)

Explanation:

Hello,

In this case, considering the boiling point rise problem, we consider its appropriate equation:

\(\Delta T_B=imK_b\)

Whereas i is the van't Hoff factor that for this nonvolatile solute is 1, m is the molality, Kb the boiling point constant of water as it is the solvent and ΔT the temperature difference. In such a way, with the given information we obtain:

- ΔT:

\(\Delta T_B=101.286\°C-100.000\°C\\\\\Delta T_B=1.286\°C\)

- Molality (mol/kg):

\(m=\frac{\Delta T_B}{i*K_b}=\frac{1.286\°C}{1*0.512\°C/m}\\ \\m=2.5m\)

- Moles for 20.02 g (0.02002 kg) of water:

\(n=2.5mol/kg*0.02002kg\\\\n=0.05mol\)

- Molar mass:

\(M=\frac{mass}{moles}=\frac{3.005g}{0.050mol} \\\\M=59.76g/mol\)

Best regards.

Answer:

Solution:

1. Calculate the total volume of the two solutions:

Volume 1 = 100 cm3

Volume 2 = 50 cm3

Total Volume = 150 cm3

2. Calculate the total mass of each solution:

Mass of Solution 1 = (Volume x Density) x Mass Fraction HCl

= (100 cm3 x 1.180 g/cm3) x 0.36

= 43.2 g

Mass of Solution 2 = (Volume x Density) x Mass Fraction HCl

= (50 cm3 x 1.100 g/cm3) x 0.20

= 11 g

3. Calculate the total mass of the two solutions combined:

Total Mass = 43.2 g + 11 g

= 54.2 g

4. Calculate the mass fraction of hydrochloric acid in the new solution:

Mass Fraction HCl = Total Mass of HCl / Total Mass of Solutions

= 54.2 g / (43.2 g + 11 g)

= 0.55

Therefore, the mass fraction of hydrochloric acid obtained by merging 100 cm3 of a solution of hydrochloric acid with a mass fraction of HCl 36%, and 50 cm3 of a solution of hydrochloric acid with a mass fraction of HCl 20%, is 0.55.

Answer: C.

Explanation:

two H nuclei fused into one He nucleus

Answer: A!

Explanation: just did it

Answer:

Fe + CuCl2 = FeCl2 + Cu

Explanation:

This is already balanced.

Answer:

For deposition to happen, thermal energy must be removed from the gas. ... As water vapor loses thermal energy, it changes into solid frost. States of Water. Water is the only substance that exists naturally as a solid, a liquid, and a gas within Earth's temperature range.

Explanation: