If mℓ = 3, what can you say about ℓ?
ℓ = 3
ℓ > 3?
ℓ ≥ 3?
ℓ <3?
ℓ≤ 3?
If ℓ= 2, what can you deduce about n?
n = 2?
n> 2?
n ≥ 2?
n<2?
n ≤ 2?

1.  We have to divide the coefficient of equation I by 2 to get equation II.

a. Both equations are balanced but equation II is the correct way to write a

balance equation.

b. It will be correct if we divide equation II coefficient by another factor

but  we will get fractions as coefficient. For example

\(\frac{1}{2}\)SnO₂ + H₂→  \(\frac{1}{2}\)Sn + H₂O

c. The correct method is checking if the number of moles of element on

the reactant side is same as the those on the product side. And the

conventional way is making sure the coefficients are whole numbers.

i.   2SnO₂ + 4H₂ → 2 Sn + 4H₂O

ii.  SnO₂ + 2H₂→  Sn + 2H₂O

We have to divide the coefficient of equation I by 2 to get equation II.

Both equations are balanced but equation II is the correct way to write a

balance equation.

If we divide the coefficients of equation II by another number, we will not

get a whole number coefficients. The coefficient will be fractions , it will

be  correct but its not conventional.  

The best method to know if equation is written the correct way is checking

if the coefficient are in the lowest whole number factors.

we also have to check if each moles of elements found in the reactant is

the same in the product side.

read more: https://brainly.com/question/16609984?referrer=searchResults

Answer:We have to divide the coefficient of equation I by 2 to get equation II.

Explanation:

Answer:

Earths rotation

Explanation:

Answer:

because if there was not four diferent season we would not have a day or a night because we would not be moving

Explanation:

Answer:

The specific heat capacity of chromium is 0.449 j/g.°C thus given metal is chromium.

Explanation:

Given data:

Mass of metal = 24 g

Initial temperature = 20 °C

Final temperature = 45°C

Energy absorbed by metal = 269.4 j

Which metal is this  = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 45°C - 20 °C

ΔT = 25°C

269.4 j = 24 g × c × 25°C

269.4 j = 600 g.°C× c

c = 269.4 j/600 g.°C

c =0.449 j/g.°C

The specific heat capacity of chromium is 0.449 j/g.°C thus given metal is chromium.

The significane is that it generates more ATP per carbon (128/16) than glucose (38/6).

What is Palmitic acid?

Palmitic acid increases LDL cholesterol levels more than other saturated fats, such as stearic acid. According to them, there is compelling evidence that high consumption of palmitic acid increases the risk of cardiovascular disease. Palmitic acid has only two oxygen atoms for every sixteen carbons, whereas glucose has six oxygen atoms for every six carbons. As a result, when fully oxidized, palmitic acid generates more ATP per carbon (128/16) than glucose (38/6). As a result, we use fat as our primary energy storage material.

To learn more about Palmitic acid from the given link:
https://brainly.com/question/23161309
#SPJ4

Electron geometry is trigonal bipyramidal. Molecular geometry is T-shaped for iodine trifluoride, IF3.

Trifluoroiodine, often known as iodine trifluoride, has the chemical formula IF3. It is an unstable interhalogen chemical molecule. It has a yellow solid appearance and easily breaks down at temperatures higher than -28°C. Because of IF3's fragility, it is mostly unknown and undiscussed in the scientific community.In light of all of the aforementioned information, this article provides you with a basic introduction to IF3, covering topics such as how to draw its Lewis structure, molecular geometry, or shape of IF3, electron geometry, bond angle, hybridization, polar or non-polar nature, and/or any formal charges present on IF3 atoms.

Complete question:6. What are the electron and molecular geometries, respectively, for iodine trifluoride, IF3?

A. Electron geometry is trigonal bipyramidal.Molecular geometry is T-shaped.

B. Electron geometry is octahedral.Molecular geometry is T-shaped.

C. Electron geometry is trigonal bipyramidal.Molecular geometry is trigonal planar.

D. Electron geometry is trigonal planar.Molecular geometry is trigonal bipyramidal.

Learn more about T-shaped  refer:brainly.com/question/24212702

#SPJ4

Answer:

The electron geometry of IF3 is trigonal bipyramidal. But the molecular shape of IF3 is T-shaped. The bond angles formed between each atom are close to 90 degrees.

Explanation:

Answer: 4 moles of water

Explanation:

12.5 volume in ml of 0.05 m Sulphuric can be prepared from 2.5 g sulphuric acid and sufficient water.

What is Volume?

Volume is a measurement of three-dimensional space that is occupied. It is frequently expressed numerically using imperial or SI-derived units. Volume and the notion of length are connected.

As a result, we can observe that 0.5 moles of sulphuric acid are required to neutralise 1 mole of NaOH. Now let's figure out how much NaOH is specified.

NaOH is assumed to weigh 2.5 g.

NaOH has a molar mass of 40 g.

=> 62.5 millimoles of NaOH are equal to 2.540 moles.

The required amount of sulfuric acid is 62.5/2 millimoles, or 31.25 millimoles.

We now understand that millimoles equal molarity times volume (in ml)

replacing the specified values,

31.25 = 2.5 * V

=> V = 12.5 ml

As a result, 12.5 cc of sulfuric acid is needed.

To learn more about Volume, refer to the below link:

https://brainly.com/question/6286323

# SPJ4

52.5 L of oxygen will react completely with 21 L of acetylene.

Acetylene (C₂H₂) burns in oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O) according to the balanced equation:

2 C₂H₂(g) + 5 O₂(g) → 4 CO₂(g) + 2 H₂O(g)

To solve this, we need to use the stoichiometry of the balanced equation. The ratio between acetylene and oxygen is 2:5. In other words, for every 2 moles of acetylene, we require 5 moles of oxygen.

Here, the volume of acetylene (C₂H₂) is 21 L, we can convert it to moles using the ideal gas law equation: PV = nRT. At standard temperature and pressure (STP), the molar volume of a gas is 22.4 L/mol.

21 L of C₂H₂ * (1 mol C₂H₂ / 22.4 L C₂H₂) = 0.9375 mol C₂H₂

Using the stoichiometry, we can set up a proportion to get the number of moles of oxygen:

(0.9375 mol C₂H₂) / (2 mol C₂H₂) = (x mol O₂) / (5 mol O₂)

Solving for x, the number of moles of oxygen:

x = (0.9375 mol C₂H₂ * 5 mol O₂) / (2 mol C₂H₂)

x = 2.34375 mol O₂

Finally, we can convert the number of moles of oxygen to volume using the molar volume at STP:

2.34375 mol O₂ * (22.4 L O₂ / 1 mol O₂) = 52.5 L of O₂

Therefore, 52.5 L of oxygen will react completely with 21 L of acetylene.

Learn more about molar volume here, https://brainly.com/question/31261274

#SPJ11

The best explanation for why a firework being ignited is an example of an exothermic reaction and not an endothermic reaction is:

The fireworks give off heat.

Heat is emitted into the environment in an exothermic reaction. When a firework is lit, it undergoes a number of chemical processes inside the firework combination, which produces gases and produces a great deal of heat. Fireworks' distinctive visual display and audible effects are produced when heat is released as light and sound.

In contrast, heat is taken from the environment during an endothermic reaction. If a reaction were endothermic, it would need an outside energy source to continue, and because it would be absorbing heat from its environment, it would feel chilly to the touch.

However, because they release heat and energy and brighten the night sky, fireworks are instances of exothermic reactions.

To know more about heat:

https://brainly.com/question/32136211

#SPJ2

Answer:

Stronger

And its science

Explanation:

Answer:

stronger for top.

weaker for bottom.

passed all sciences in freshman year :D

Answer:

Leucippus and Democritus

Explanation:

Hope this helps~ :D

Thank you so much! :D

When two atoms of chlorine and iodine join together to form a covalent bond, their outermost electrons interact to form a chemical bond.

What is a Covalent bond?

A covalent bond is a type of chemical bond that involves the sharing of a pair of electrons between two atoms. Covalent bonds are formed when two atoms come together to share their electrons in order to reach a more stable electron configuration. As a result, the two atoms become bonded together by the attraction of their shared electrons.

The chlorine atom has seven valence electrons, while the iodine atom has seven as well. Both atoms will want to complete their octets, so the two atoms share their outermost electrons with each other. During the formation of the covalent bond, the chlorine atom will donate one of its electrons to the iodine atom, while the iodine atom will donate one of its electrons to the chlorine atom. This sharing of electrons allows the two atoms to form a single bond and fill their octets, forming a covalent bond.

To know more about a Covalent bond,

https://brainly.com/question/3447218

#SPJ4

A. False (The pH of an alkaline solution is greater than 7.)

B. True

C. True

D. False (Alkalis are usually soapy to touch and have a bitter or metallic taste.)

Corrected versions:

A. The pH of an alkaline solution is greater than 7.

D. Alkalis are usually soapy to touch and have a bitter or metallic taste.

Calculation:

To calculate the density of the essential oil, you would use the following equation:

density = mass/volume

Plugging in the given values, you would get:

density = 40 g/50 ml = 0.8 g/ml

Answer:

1.03 × 10¹

Explanation:

The decimal point is after the first non-zero digit number. The decimal or the number is multiplied by a 10 with an exponent.

The effects of exposure were more pronounced in fish that had been raised in a less stressful environment, suggesting that environmental conditions can influence the impact of exposure to antidepressants.

1. The class of drugs being investigated in this study is antidepressants. They enter our waterways through excretion by individuals taking the medication, and disposal of unused medication into toilets or sinks that are connected to wastewater treatment plants.

2. C-start is an evasive maneuver that young fish use when they perceive a predator. This is important for larval fish survival because it helps them to avoid being eaten by predators.

3. In this investigation, researchers are testing two hypotheses. The first is that exposure to low levels of antidepressants can affect larval fathead minnows' behavior, and the second is that the effects of exposure will be more pronounced in fish that have been raised in a less stressful environment.

4. The researchers found that exposure to antidepressants at levels found in waterways can have a significant impact on the behavior of larval fathead minnows. Specifically, they found that the fish exposed to antidepressants were less likely to respond to the presence of predators, which could increase their risk of being eaten.

They also found that the effects of exposure were more pronounced in fish that had been raised in a less stressful environment, suggesting that environmental conditions can influence the impact of exposure to antidepressants.

To learn more about antidepressants,

https://brainly.com/question/28209828

#SPJ4

Answer:

Formula we will be using:

(i) ,

where

Final quantity

Initial quantity

t=time ( same unit as that of half-life)

n=half-life

-------------------------------------------------------------

Given,

Final quantity ==0.100g

Initial quantity==0.750g

Time= t(unknown)

Half-life=n=3.823 days

Plug in the above values in the formula:

Divide both sides by 0.750:

Taking natural long on both sides:

Applying

Dividing both sides by ln(0.5):

Multiplying both sides by 3.823:

11.113=t

t=11.113

It would take 11.113 days

Answer : 11.113 days

Explanation:

Answer:What is happening to voltage-gated channels at this point in the action potential? Na+ channels are inactivating, and K+ channels are opening. Na+ channels are inactivating, and K+ channels are closing.

The amount of work done is 450.0 atm L given that a system is compressed from 50.0 L to 5.0 L at a constant pressure of 10.0 atm.

To find the amount of work done when a system is compressed from 50.0 L to 5.0 L at a constant pressure of 10.0 atm, we can use the equation:

Work = Pressure x Change in Volume

The change in volume is calculated by subtracting the initial volume from the final volume:

Change in Volume = Final Volume - Initial Volume
Change in Volume = 5.0 L - 50.0 L
Change in Volume = -45.0 L

Since the change in volume is negative (indicating compression), we can use the absolute value of the change in volume in the calculation.

Plugging in the values into the equation, we have:

Work = 10.0 atm x |-45.0 L|
Work = 10.0 atm x 45.0 L
Work = 450.0 atm L

Therefore, the amount of work done is 450.0 atm L

To know more about work visit:

https://brainly.com/question/18094932

#SPJ11

Explanation:

In CO₂ there's 2 double bonds.

Structure:

O=C=O (linear) (180°)

Therefore,

Option C is correct✔

The balanced molecular chemical equation for this reaction is as follows:CuSO4 + 2NH4OH → Cu(OH)2 + (NH4)2SO4.

The balanced molecular chemical equation for the reaction in aqueous solution for copper(II) sulfate and ammonium hydroxide is given below:CuSO4 + 2NH4OH → Cu(OH)2 + (NH4)2SO4Copper (II) sulfate reacts with ammonium hydroxide to form copper (II) hydroxide and ammonium sulfate.

When ammonium hydroxide is added to copper (II) sulfate solution, it produces copper (II) hydroxide and ammonium sulfate. The balanced molecular chemical equation for this reaction is as follows:

Copper (II) sulfate + Ammonium hydroxide → Copper (II) hydroxide + Ammonium sulfateCuSO4 + 2NH4OH → Cu(OH)2 + (NH4)2SO4

The reaction is the exchange reaction that occurs when Cu(OH)2 is produced. This reaction is highly exothermic and releases energy in the form of heat.

The copper (II) hydroxide (Cu(OH)2) precipitate is a pale blue solid, while the ammonium sulfate ((NH4)2SO4) remains in the solution.

Therefore, it is a double displacement reaction.It is a double displacement reaction that occurs when copper (II) sulfate and ammonium hydroxide react to form copper (II) hydroxide and ammonium sulfate.

The balanced molecular chemical equation for this reaction is as follows:CuSO4 + 2NH4OH → Cu(OH)2 + (NH4)2SO4.

To know more about double displacement reaction visit:

brainly.com/question/29740109

#SPJ11

To create 50 grams of sodium sulfate, 28.16 grams of sodium hydroxide are needed.

The International System of Units (SI) defines the gram as a unit of mass that is one thousandth of a kilogram. Another concept connected to mass is the gram.

The amount of matter that makes up a substance or an object is truly measured by its mass. The kilogram (kg) is the fundamental SI unit for mass, but lesser quantities are typically measured in grams (g). You would use a balance or perhaps a scale to measure mass.

According to the answer to the previous question, 80 grams of sodium hydroxide and 142 grams of sulfuric acid react to form sodium sulfate. So the amount of sodium hydroxide needed to make 50 grams of sodium sulfate is as follows:

80 × 50 / 142  = 28.16 grams.

To know more about gram visit:

brainly.com/question/11260752

#SPJ4

Answer:

Events that happen over and over form a pattern

Answer:

B-Gamma

Explanation:

Answer:

The kind of bond formed depends on the identity of the bonding atoms and the shape of the molecule formed for covalent bonds.

Explanation:

There are various kinds of chemical bonds that could be present in a compound;

I) ionic bond

ii) covalent bond

iii) metallic bond

The kind of bond present in the compound depends on the elements involved in the bond. Metals and nonmetals mostly form ionic bonds win which electrons are transferred from metal to nonmetal.

Nonmetals commonly form covalent bonds with each other by sharing electrons in single, double and triple bonds. One may decide if the bond between two elements is ionic, covalent or polar covalent by looking at the electro negativity difference between the bonding atoms as well as the observed molecular geometry.

Finally, two metals are bonded by metallic bonds. This is the kind of bonds found in metallic crystals.

In order to achieve a target voltage of 0.989 V under standard temperature and pressure conditions, I would carefully choose two half-cells that possess considerably different standard electrode potentials.

This selection will enable the desired voltage to be reached. Using the standard potentials table from the textbook, I would select an appropriate oxidation half-reaction and a corresponding reduction half-reaction.

One can achieve the desired voltage of a cell by interlinking its half-cells and facilitating the conduction of electrons through an outer circuit.

Crafting cells with precise voltages is crucial in practical usage for numerous reasons.

Certain equipment or mechanisms necessitate a particular voltage for optimal performance. We can make these devices compatible by adjusting the cell voltage according to their requirements.

Additionally, optimized voltage stipulations may be essential to achieve effective energy transformation, particularly in the case of fuel cells or batteries employed in electric cars. By customizing the voltage of the cell, we can enhance the effectiveness of energy storage and usage across different use cases.

Read more about voltage here:

https://brainly.com/question/1176850

#SPJ1

The type of battery used in the Prius, a hybrid car produced by Toyota, is a Nickel-Metal Hydride (NiMH) battery. According to the maker's claims, this battery should not have to be recharged or replaced.

The Prius originally used Nickel-Metal Hydride (NiMH) batteries for its hybrid powertrain. NiMH batteries are known for their higher energy density compared to conventional lead-acid batteries. They are capable of storing and delivering a significant amount of energy, making them suitable for powering the electric motor in hybrid vehicles like the Prius. The manufacturer claims that the NiMH battery in the Prius is designed to last for the lifetime of the car without needing to be recharged or replaced.

To learn more about  hybrid vehicles click here: brainly.com/question/9456493

#SPJ11

Answer:

Pentane

Explanation:

Answer:

Explanation:

b

The osmotic pressure of the glucose solution is 10.91 atm. It was calculated using the formula \(\[\frac{n}{V}RT\]\) with a moles of glucose (C₆H₁₂O₆) of 0.2217 and a volume of 0.425 L at a temperature of 30.0 °C.

To calculate the osmotic pressure of a solution, we can use the formula:

Osmotic pressure = \(\[\frac{n}{V}RT\]\)

Where:

n = moles of solute

V = volume of solution in liters

R = ideal gas constant (0.0821 L·atm/(mol·K))

T = temperature in Kelvin

First, let's calculate the moles of glucose (C₆H₁₂O₆) in the solution:

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

Moles of glucose = \(\[\frac{m_{\text{glucose}}}{M_{\text{glucose}}}\]\)

                  = \(\[\frac{40.0 \text{ g}}{180.18 \text{ g/mol}} \]\)

                  = 0.2217 mol

Next, we need to convert the volume of the solution to liters:

Volume of solution = 425.0 mL = 0.425 L

Now, we can calculate the osmotic pressure:

Osmotic pressure = \(\[\frac{n}{V}RT = P\]\)

                         =\([(0.2217\ \text{mol} / 0.425\ \text{L}) \times (0.0821\ \text{L}\cdot\text{atm}/(\text{mol}\cdot\text{K})) \times (30.0 + 273.15)\ \text{K}]\)

                         = 10.91 atm

Therefore, the osmotic pressure of the solution is 10.91 atm.

To know more about the osmotic pressure refer here,

https://brainly.com/question/29823250#

#SPJ11