A 2-column table with 3 rows. Column 1 is labeled Substance with entries upper O subscript 2, upper N subscript 2, upper C upper O subscript 2. Column 2 is labeled Molar mass with entries 32.00 grams per mole, 28.02 grams per mole, and, 44.02 grams per mole.
For each pair below, select the sample that contains the largest number of moles.

Pair A

2.50 g O2

2.50 g N2

Answer:

Alkene can be used to make polymers.polymers are very large molecules made when many smaller, reactive molecules join together,end to end.the smaller molecules are called monomer.the polymer fromed are called addition polymers.

Answer:

B(v, T) = 2hv^3/c^2 1/hv

Answer:

the analysis of the relationships between different physical quantities by identifying their base quantities and units of measure and tracking these dimensions as calculations or comparisons are performed.

Explanation:

The given statement “Shorter product life cycles have led to increased demand uncertainty and difficulty in forecasting” is true because shorter product life cycles have led to increased demand uncertainty and difficulty in forecasting. It is becoming more difficult to predict demand, and there is a higher probability of product failure than there was in the past.

There are several factors responsible for this increased demand uncertainty and difficulty in forecasting. One of the most significant factors is the decrease in product life cycle length. Shorter product life cycles imply that new items and designs are being introduced on a more frequent basis.Product life cycles are the stages that a product passes through from conception to eventual obsolescence. It starts with the development of the product and continues until the product is no longer in use. It includes the introduction stage, growth stage, maturity stage, and decline stage.A product's life cycle has an impact on supply chain management since it has a significant impact on demand forecasting. As a result, any adjustments in demand forecasts must be accompanied by adjustments in supply chains. In a nutshell, shorter product life cycles have resulted in increased demand uncertainty and difficulty in forecasting, making it more challenging to manage supply chains effectively.

So, shorter product life cycles have led to increased demand uncertainty and difficulty in forecasting is true.

Learn more about Shorter at

https://brainly.com/question/10777703

#SPJ11

Flame tests are used to identify the presence of a relatively small number of metal ions in a compound. Not all metal ions give flame colors. For Group 1 compounds, flame tests are usually by far the easiest way of identifying which metal you have got.

The color change of the equilibrium system of cobalt complexes can provide valuable information about changes made to the system at equilibrium. In this case, the Co(H₂0)₆²⁺ (aq) complex is pink and the CoCl₂⁻ (aq) complex is light blue.

If the solution changes from pink to light blue, it means that the concentration of CoCl₂⁻ (aq) complex has increased and the concentration of Co(H₂0)₆²⁺ (aq) complex has decreased. This could be due to the addition of more chloride ions or the removal of water molecules from the system. As a result, the equilibrium shifts towards the side of the equation with fewer chloride ions and more water molecules.

On the other hand, if the solution changes from light blue to pink, it means that the concentration of Co(H₂0)₆²⁺ (aq) complex has increased and the concentration of CoCl₂⁻ (aq) complex has decreased. This could be due to the addition of more water molecules or the removal of chloride ions from the system. As a result, the equilibrium shifts towards the side of the equation with fewer water molecules and more chloride ions.

If the solution stays light blue after adding a chemical, it means that the added chemical has no effect on the equilibrium system. This could be because the added chemical does not react with any of the species in the equilibrium system or because its effect is negligible compared to the existing concentrations of the species.

To know more about equilibrium, refer to the link below:

https://brainly.com/question/15398944#

#SPJ11

Answer:

B. bedrock structure.

Explanation:

A landform refers to a geomorphic or natural feature of the Earth's surface, which typically makes its terrain. Some examples of landforms on planet earth are mountain, plains, valley, hills and plateau.

Basically, the tectonic plates such as the oceanic and continental lithosphere interact in three (3) ways and these are; divergent, transform and convergent boundaries.

A convergent plate boundary can be defined as a boundary where two (2) plates move towards each other, usually, resulting in subduction or collision. This action often causes mountain range such as the Himalayas to form by the collision between the plate carrying Eurasia and that of India; as a result of subduction which causes a plate to be forced underneath the mantle, deep ocean trenches are formed such as the Mariana trench.

The Catskills are commonly called mountains but are actually part of the Allegheny Plateau also referred to as Appalachian Plateau. The Catskills are classified as a plateau because of their bedrock structure which is caused by a valley, continental glaciers, and erosion from various watercourse.

Additionally, the Catskills is a mountain which got its name from early Dutch settlers in the United States of America.

The water sample must absorb 6390 J of heat to raise its temperature from 11.0°C to 62.0°C.

To calculate the heat absorbed, you can use the formula: Q = mcΔT, where Q is the heat, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

m = 30.0 g
c = 4.18 J/g⋅°C
ΔT = 62.0°C - 11.0°C = 51.0°C

Q = (30.0 g) × (4.18 J/g⋅°C) × (51.0°C) = 6390 J

The formula Q = mcΔT is used to calculate the heat absorbed or released during a temperature change.

The variables used in the formula are: Q, which is the heat absorbed or released, m, the mass of the substance, c, the specific heat capacity of the substance, and ΔT, the change in temperature.

In the given example, the mass of the water sample is 30.0 g, the specific heat capacity of water is 4.18 J/g⋅°C, and the change in temperature is 51.0°C (the final temperature is 62.0°C and the initial temperature is 11.0°C). Using these values, we can calculate the amount of heat absorbed by the water sample.

The water sample must absorb 6390 J of heat to raise its temperature from 11.0°C to 62.0°C.

To learn more about mass, refer below:

https://brainly.com/question/19694949

#SPJ11

Answer:

pH=14-pOH

1. B

pOH= 14- pH

2.B

Explanation:

Answer:

1. B

pH=14-pOH

2.B

pOH= 14- pH

Explanation:

Answer:

what about chemistry notes​?

Explanation:

1. It is widely expected that greenhouse gas emissions will continue to increase over the next 50 years, primarily due to population growth, industrialization, and increasing energy demands.

2. Alongside rising temperatures, other changes that may occur include shifts in global precipitation patterns, changes in the distribution of species and ecosystems, increased frequency.

3. While current efforts to reduce greenhouse gas emissions are important, it is widely recognized that they may not be sufficient to prevent significant climate change impacts.

4. Addressing climate change requires a multi-faceted approach, involving policy changes, technological advancements, behavioral shifts, and international cooperation.

1.  As a result, global climate will likely continue to warm, leading to various impacts such as rising sea levels, more frequent and intense extreme weather events, shifts in precipitation patterns, and ecosystem disruptions. The exact extent of these changes will depend on several factors, including future emission levels, technological advancements, and policy decisions.

Alongside rising temperatures, other changes that may occur include shifts in global precipitation patterns, changes in the distribution of species and ecosystems, increased frequency and intensity of droughts and heatwaves, melting of glaciers and polar ice caps, and ocean acidification. These changes can have far-reaching consequences for agriculture, water resources, biodiversity, human health, and socio-economic systems.

3. While current efforts to reduce greenhouse gas emissions are important, it is widely recognized that they may not be sufficient to prevent significant climate change impacts.

Additional and more ambitious measures are needed, including transitioning to renewable and cleaner energy sources, improving energy efficiency, adopting sustainable land-use practices, enhancing public transportation, promoting carbon capture and storage technologies, and implementing policies that incentivize emission reductions across various sectors.

4. In addition to reducing dependence on fossil fuels, other solutions to combat greenhouse gas emissions and global warming include promoting sustainable agriculture and land management practices, protecting and restoring forests and other natural carbon sinks, advancing green technologies and innovation.

Enhancing resilience to climate impacts and investing in climate adaptation measures is also crucial to mitigate the risks associated with ongoing changes. Ultimately, addressing climate change requires a multi-faceted approach, involving policy changes, technological advancements, behavioral shifts, and international cooperation.

For more such questions on  gas emissions visit:

https://brainly.com/question/15721585

#SPJ8

The molar mass of the equation S   +   6 HNO3  -->  H2SO4  +  6 NO2  +   2 H2O is 0.7g H2O.

This is a rather straightforward application of stoichiometry. We simply convert our mass of nitric acid into moles, so we can use the stoichiometric ratios provided in the balanced equation to our advantage:

(135.8g HNO3)(1 mol HNO3/63g HNO3)(2 mol H2O/6 mol HNO3)

molar mass = 0.7g H2O

Molar mass is a fundamental concept in chemistry that refers to the mass of one mole of a substance. A mole is a unit of measurement used to express the number of particles in a sample, such as atoms, molecules, or ions. One mole of any substance contains Avogadro's number of particles, which is approximately 6.02 x 10^23 particles.

The molar mass of a substance is calculated by adding up the atomic masses of all the atoms in a molecule or formula unit. The atomic mass is the mass of an individual atom, expressed in atomic mass units (amu). The molar mass is then expressed in grams per mole (g/mol). Molar mass is a useful concept in chemistry because it allows chemists to convert between the mass of a substance and the number of particles present in a sample.

To learn more about Molar mass visit here:

brainly.com/question/12127540

#SPJ4

When sodium thiosulfate (Na₂S₂O₃) is introduced to a solution containing silver bromide (AgBr), the silver ions (Ag⁺) in the solution react with the thiosulfate ions (S₂O₃²⁻) from the sodium thiosulfate, resulting in the formation of complex ions. These complex ions consist of a metal ion, which in this case is Ag⁺, and one or more ligands, in this case, the thiosulfate ions.

This reaction occurs because the thiosulfate ions have a high affinity for the silver ions due to their ability to coordinate with the metal ion, forming a stable complex. Once the complex ion is formed, it remains in solution and does not precipitate out as a solid.

Therefore, all the silver ions in solution will form complex ions when sodium thiosulfate is added to a solution of silver bromide, leading to the formation of a clear colorless solution. This reaction is often used in photography to fix the image by removing the unexposed silver bromide from the photographic film.

To know more about the complex ion refer here :

https://brainly.com/question/31418041#

#SPJ11

Answer:

a) Increasing the toll for non carpoolers will motivate people to carpool and therefore will decrease the number of cars in the road burning fossil fuels.

b) Tax breaks for buildings that use solar panels for energy. This reduces fossil fuels burned for electricity.

c) The city can increase the amount of city transportation available. While this may seem counterproductive because the amount of buses or trains or boats burning fossil fuels increases, by doing this more people will have easy access to public transportation and it has been shown that public transportation is more effective in reducing fossil fuel usage per head. Providing more options of public transportation will increase their usage and therefore will over decrease the amount of fossil fuel burned by individiuals which will overall decrease fossil fuels burning.

The substances having common ion cannot form precipitate during chemical change.

An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.

Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.Ions are generated when substance is subjected to electrolysis.

Learn more about ions,here:

https://brainly.com/question/14982375

#SPJ9

To write the balanced complete molecular chemical equation and the balanced net ionic chemical equation, including phase labels, we need to first understand what they are .

Molecular chemical equation: A molecular equation is a chemical reaction equation where the reactants and products are expressed as molecules and the charges aren't shown. A molecular equation can show the reactants and products as solids, liquids, or gases with their states written in parenthesis after each molecule.

Net ionic chemical equation: The chemical equation in which all the spectator ions are removed is known as the net ionic chemical equation. The net ionic equation represents the actual chemical change taking place in the reaction. It demonstrates the substances and ions that actually take part in the chemical change.

Here is an example of how to write the balanced complete molecular chemical equation and the balanced net ionic chemical equation, including phase labels:

Example: Sodium chloride reacts with silver nitrate to form silver chloride and sodium nitrate.

Complete Molecular Chemical Equation:

NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)

Balanced Net Ionic Chemical Equation:

Ag+(aq) + Cl-(aq) → AgCl(s) + Na+(aq) + NO3-(aq)

The phase labels used in the above equations are:aq: aqueous phase (dissolved in water)s: solid phase (precipitate)

learn more about molecular equation

https://brainly.com/question/29299745

#SPJ11

The distance travelled by the particle between 0 seconds and 6 seconds is 12 m

Velocity is simply defined as the rate of change of displacement with time. Mathematically, it can be expressed as:

Velocity = displacement / time

From the question given above, the following data were obtained:

Velocity = displacement / time

The displacement of the object between 0 and 6 s is calculated as;

2 = displacement / 6

Cross multiply

Displacement = 2 × 6

Displacement = 12 m

Learn more about velocity here:

brainly.com/question/3411682

#SPJ1

The moles would be 12 moles, 4 moles and 11.34 moles

When hydrogen gas (H2) reacts with oxygen gas (O2) to produce water (H2O), the balanced chemical equation is:

2H2 + O2 -> 2H2O

So,

For every 6 moles of H2, 12 moles of H2O will be produced

For every 2 moles of H2, 4 moles of H2O will be produced

For every 5.67 moles of H2, 11.34 moles of H2O will be produced.

Read more on the moles here:https://brainly.com/question/15356425

#SPJ1

Answer:

have you tried to convert the energy into a simpler form to help

Explanation:

the numbers may be converted with the right equation

Answer:

the reaction was that it turned green. because it used to be brown but because the rain and carbon dioxide affected it.

Reagent from this lab should she add to make her final identification is NaCl or NaOH.

To make the final identification between NaCl and NaOH, the chem 1314 student should add a reagent that can differentiate between the two compounds. One possible reagent that could be used is silver nitrate (AgNO3). If the unknown compound is NaCl, then when AgNO3 is added, a white precipitate of silver chloride (AgCl) will form. However, if the unknown compound is NaOH, then no precipitate will form when AgNO3 is added. Therefore, the addition of silver nitrate can help the student identify whether the unknown compound is NaCl or NaOH.

Precipitates are solids that are created during or as byproducts of chemical reactions in solutions. Precipitates come in a wide variety of sizes and shapes, from tiny granules to huge pieces. The chemical compound NaCl is also referred to as sodium chloride. It is frequently called table salt.

Learn more about Precipitates here

https://brainly.com/question/31046678

#SPJ11

Answer:

This compound is called cesium chromate.

Explanation:

This is an ionic compound with a polyatomic because it contains a metal (Cs). To name these types of compounds, follow the following steps:

Hope this helps!

Answer: Atoms are made of dust because God made us with dust.

Explanation:

To produce 35.5g of H2, approximately 2055.49g of NaCl is required.

To calculate the mass of NaCl required to produce 35.5g of H2, we need to determine the stoichiometry of the reaction and use the molar mass of NaCl.

The balanced equation for the reaction is:

2NaCl + 2H2O -> 2NaOH + H2

From the balanced equation, we can see that for every 2 moles of NaCl, 1 mole of H2 is produced. We can use the molar mass of H2 (2.016g/mol) to convert the given mass of H2 into moles:

moles of H2 = mass of H2 / molar mass of H2

moles of H2 = 35.5g / 2.016g/mol

moles of H2 = 17.6 mol

Since the stoichiometry of the reaction is 2 moles of NaCl to 1 mole of H2, we can set up the following ratio:

moles of NaCl / moles of H2 = 2 / 1

Rearranging the equation to solve for moles of NaCl:

moles of NaCl = (moles of H2 * 2) / 1

moles of NaCl = (17.6 mol * 2) / 1

moles of NaCl = 35.2 mol

Now, we can calculate the mass of NaCl required using the molar mass of NaCl (58.44g/mol):

mass of NaCl = moles of NaCl * molar mass of NaCl

mass of NaCl = 35.2 mol * 58.44g/mol

mass of NaCl = 2055.49g

For more such questions on NaCl visit:

https://brainly.com/question/23269908

#SPJ8

Answer:

Heating the CuSO4. 5H2O crystals causes then to loose the water of crystallisation that is the 5H2O part. It becomes anhydrous copper sulphate. Its colour changes to white from blue.