Make the arbitrary assignment of the reduction of Zn2+(aq) to Zn(s) as you 0 V for your brief list.

Zn^2+(aq) +2e- → Zn(s) E = 0 V

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\\)

From the question we have

\(volume = \frac{2500}{10} \\ \)

Wr have the final answer as

Hope this helps you

Answer:

897154.2 J

Explanation:

Applying,

q = mcΔT.............. Equation 1

Where q = amount of energy released, m = mass of water, c = specific heat capacity of water, ΔT = Change in temperature

From the question,

Given: m = 2.25 kg = 2250 g, c = 4.184 J/g°C, ΔT = (4.2-99.5) = -95.3°C

Substitute these values into equation 1

q = 2250(4.184)(-95.3)

q = -897154.2 J

q =

Hence the amount of heat released is 897154.2 J

Types of luminous flames:

1. Yellow Luminous Flame

2. Smoky Luminous Flame

3. Orange Luminous Flame

4. Blue Luminous Flame

Luminous flames are characterized by their visible glow, which is caused by the incomplete combustion of fuel. The presence of soot particles in the flame causes the emission of light. There are different types of luminous flames, which can be classified based on their fuel composition and burning conditions. Here are some common types of luminous flames:

1. Yellow Luminous Flame: This is the most common type of luminous flame, often seen in open fires, candles, and gas stoves. It appears yellow due to the presence of soot particles in the flame. Yellow flames indicate incomplete combustion of hydrocarbon fuels, such as methane, propane, or natural gas. The high carbon content in these fuels leads to the formation of soot, which emits visible light.

2. Smoky Luminous Flame: This type of flame is characterized by a significant amount of black smoke and soot production. It is commonly observed in poorly adjusted or malfunctioning burners or engines. The excessive presence of unburned fuel in the flame results in incomplete combustion and the emission of dark smoke particles.

3. Orange Luminous Flame: An orange flame indicates a higher combustion temperature compared to a yellow flame. It is often seen in more efficient burners or when burning fuels with a higher carbon content, such as oil or diesel. The higher temperature helps in burning more of the carbon particles, reducing the amount of soot and making the flame appear less yellow.

4. Blue Luminous Flame: A blue flame is typically associated with complete combustion. It indicates efficient burning of fuel, resulting in minimal soot formation. Blue flames are commonly observed in gas burners or Bunsen burners. The blue color is a result of the combustion of gases, such as methane, in the presence of sufficient oxygen.

It's important to note that the luminosity of a flame can vary depending on factors such as fuel-air mixture, combustion temperature, and the presence of impurities. Achieving complete combustion and minimizing the production of soot is desirable for efficient and cleaner burning processes.

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In a weak acid solution, although it is weak, the acid gives up some H⁺. A strong base will dissociate almost completely when add and its OH⁻ will neutralize the H⁺ in solution, converting into water.

Depending on the concentrations of both, after the addition the weak acid can still give up H⁺.

This means that both 1 and 2 are happening in the solution, so the answer is both.

Answer:

When an atom splits into two parts, either through natural decay or when instigated within a lab, it releases energy. This process is known as fission.

Explanation:

Fission

Explanation:

gravity

kinetic energy

less than

friction resists the ball's movement

2.0 m/s

change its direction

speed

newton's first law

dump truck

position

Answer:

Q1 - Gravity

Q2 - Kinetic Energy

Q3 - Less than

Q4 - Friction resists the ball's forward motion

Q5 - 2 m/a

Q6 - Change its speed

Q7 - Speed

Q8 - Second law

Q9 - a dump truck

Q10 - motion

I am not sure about some answers but I answered all questions.

Answer: The mass in grams is 514.8.

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number \(6.023\times 10^{23}\) of particles.

To calculate the number of moles, we use the equation:

\(\text{Number of moles}=\frac{\text{Given molecules}}{\text{Avogadros number}}\)

given molecules = \(7.03\times 10^{24}\)  

Putting in the values we get:

\(\text{Number of moles}=\frac{7.03\times 10^{24}}{6.023\times 10^{23}}=11.7moles\)

mass of \(CO_2=moles\times {\text {Molar mass}}=11.7mol\times 44g/mol=514.8g\)

The mass in grams is 514.8.

Answer: The account of the prophet Daniel demonstrates to Jews that God will rescue them from harm because made the lions shut their mouths so that Daniel was safe through the night.

Answer:

Is there a word bank? If so pls comment ands then i will say the answers :)

Explanation:

Answer:

Think it's C16H31FN2O2, but I couldn't find anything else about it.

Explanation:

It's an organic chemistry skeletal structure and it's very difficult to explain how to read. Hopefully this gave you a push in the right direction, I know it wasn't the most complete answer.

Answer:

I'm not really sure but I thinks its

A:veuns

Answer:

(Ba) balium

hope this helped.. :^)

Answer:

it's Ba which is balium

Explanation:

I hope I helped.. :^)

Answer: The concentration of \(CH_3NC\) will be \(1.56\times 10^{-2}M\) after 416 seconds have passed.

Explanation:

Expression for rate law for first order kinetics is given by:

\(t=\frac{2.303}{k}\log\frac{a}{a-x}\)

where,

k = rate constant = \(3.00\times 10^{-3}s^{-1}\)

t = age of sample = ?

a = let initial amount of the reactant = \(5.45\times 10^{-2}M\)

a - x = amount left after decay process = \(1.56\times 10^{-2}M\)

\(t=\frac{2.303}{3.00\times 10^{-3}}\log\frac{5.45\times 10^{-2}}{1.56\times 10^{-2}}\)

\(t=416s\)

The concentration of \(CH_3NC\) will be \(1.56\times 10^{-2}M\) after 416 seconds have passed.

Answer: 4 miles

Explanation:

Riding the bike 12 mph (miles per hour) for one hour, we would ride the bike 12 miles. Since 20 minutes is 1/3 of a hour, divide 12 by 3 to find out how far the biker traveled in 1/3 of the time: 4 miles Hope this helps

Hello!

\(\large\boxed{\frac{5}{3}\text{ hours} \text{ or }100 \text{ min}}\)

Use the equation d = s · t where:

s = speed

t = time

d = distance

Plug in the given distance and speed:

20 = 12 ·t

Divide both side by 12 to isolate for t:

20/12 = t

Simplify:

5 / 3 = t

Therefore, it took 5/3 hours to bike. We can convert this to minutes if necessary:

5/3 · 60 min (in one hour) = (60 · 5) / 3 = 100 min.

Answer:

Example 1

palladium(II) nitrate,

Example 2

Metal catalysts such as Fe, Ni, Mo, and Co are routinely used in the manufacture of CNMs.

Explanation

The three metals used in catalytic converters — rhodium, platinum and palladium — are part of a category known as platinum group metals, or PGMs, which are known for their catalytic properties.

Answer:

b

Explanation:

Answer:

The acid will react with the metal, causing hydrogen gas and salt to form from it.

29 is not the best answer depends on the context and the rules for significant figures.

What is best answer?

The best answer depends on the context and the rules for significant figures. If we assume that we need to round to three significant figures:

Therefore, 29 is not the best answer.

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Answer: One with a pKa of 1.9

Hope this helps <3

P.S Fun Fact~~

There are only two words in the English language that have all five vowels in order: "abstemious" and "facetious."!

Answer:

Explanation:   Is there choises? H3PO4 / NaH2PO4 buffer with equal concentrations would form a buffer solution pH = 2.15

Explanation:

The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12.

Hope this Helped :)

Answer:

Reflection

Explanation:

Hope this helps! 'v'

Answer:same but answer

Explanation:yeah confusing

Answer:

D

Explanation:

Craters produced by the collision of a meteorite with the Earth (or another planet or moon) are called impact craters. The high-speed impact of a large meteorite compresses, or forces downward, a wide area of rock. The pressure pulverizes the rock.

Answer:

element contains only one type of atom but compounds conatins 2 or more elements, and since this is in teh air its probably h2O

Explanation:

Hey there :)

As per your question, scientists want people to know more about carbon emissions, carbon credits, acidification, and global climate change because only then, people will understand that their doings are causing dangers to the whole world.

In detail:-

☆ OCEAN ACIDIFICATION-

Acidification reduces the availability of carbonate ions in ocean water, which provide the building blocks these organisms need to make their shells and skeletons, significantly reducing the chances for their offspring to survive.

☆ CARBON EMMISSIONS -

This has been a crucial issue. Still, There are many ways to reduce emissions of CO2 and other warming agents, including shifting energy supply away from dependence on fossil fuels, energy efficiency in the domestic, industrial, service and transport sectors; reductions in overall demand through better system design and efficient reductions in emissions.

☆ CLIMATE CHANGE -

Scientists study Earth's climate and the ways that it changes in a variety of different ways, using satellite, instrumental, historical, and environmental records. In doing so, science builds a foundation for understanding how our lives are impacted by climate change and what we can do to slow or reverse change.

~Benjemin360

Answer:

No

Its a chemical change so the characteristics or chemical properties always differs thereby the properties of sodium chloride isn't similar to sodium or chloride