An isotope of an element has a different number of _____.

neutrons
protons
electrons

Answer:

1) water usage (such as the withdrawal of water from streams and aquifers or the construction of dams and levees), land usage (such as urban development, agriculture, or the removal of wetlands), and pollution (such as of the air, water, or land)

2) global warming and climate change; water pollution and ocean acidification; and loss of biodiversity.

3) Raynaud’s phenomenon (also called Raynaud’s disease or Raynaud’s syndrome) is a disorder that affects the blood vessels in the fingers and toes. Blood vessels in the nose, lips or ear lobes may also be affected.

4) From the destruction of buildings to the spread of disease, natural disasters can devastate entire countries overnight. Tsunamis, earthquakes and typhoons do not just wreak havoc on land; they also disrupt people's lives in both densely populated cities and remote villages.

5) Climate change increases the risk of illness through increasing temperature, more frequent heavy rains and runoff, and the effects of storms. Health impacts may include gastrointestinal illness like diarrhea, effects on the body's nervous and respiratory systems, or liver and kidney damage.

6) Completely turn off equipment like televisions and stereos when you're not using them.

Choose energy-efficient appliances and light bulbs.

Save water: some simple steps can go a long way in saving water like, like turning off the tap when you are brushing your teeth or shaving. Try to collect the water used to wash vegetables and salad to water your houseplants. Changing our main energy sources to clean and renewable energy is the best way to stop using fossil fuels. These include technologies like solar, wind, wave, tidal and geothermal power. Switch to sustainable transport. Petrol and diesel vehicles, planes and ships use fossil fuels.

Explanation:

This was from my lecture notes. Stay safe!!

Answer:

B

Explanation:

B

The most likely acid-base imbalance in a patient with respiratory depression and a history of COPD is Respiratory Acidosis So option B is correct.

Respiratory acidosis is a condition where there is a buildup of carbon dioxide (CO2) in the body, leading to an acidotic pH, which is below 7.35. This can occur in patients with respiratory depression because CO2 is not being effectively removed from the body through normal breathing. In a patient with a history of COPD, it is even more likely that this could occur because COPD can cause decreased lung function and decreased ability to effectively breathe and remove CO2.

Metabolic alkalosis is a condition where there is an excessive loss of acids from the body, leading to an alkaline pH, which is above 7.45. This is unlikely in this scenario.

Metabolic acidosis is a condition where there is an accumulation of acid in the body, leading to an acidotic pH. This is also unlikely in this scenario.

To learn more about respiratory depression, visit:

https://brainly.com/question/15780704#

#SPJ11

We first verify that the equation is balanced. We have 5 carbons (C), 2 sulfurs (S), and 4 oxygens (O) on each side of the reaction. So the reaction is balanced.

a) Now if we look at the reaction we can see that when 2 moles of SO2 react, 1 mole of CS2 is produced. That is, the ratio is 2 to 1. For each mole of SO2 half as many moles of CS2 will be produced.

So if we have 9.5 moles of SO2 we will have 9.5/2 moles, that is 4.75 moles of CS2.

Answer a) By reacting 9.50 moles of SO2 with an excess of it would be produced 4.75 moles of CS2.

Now, for the following parts of the question, we can apply the ideal gas law. This is because the reaction is in the gas phase and the law applies only to gases.

Where,

P= Pressure at STP = 1 atm

T= Temperature at STP = 273.15K

R= Ideal law constant = 0.08206 (atm L)/(mol K)

V= Volume of the gas

n= Numer of moles

b)We clear n and we replace the known values of SO2 to find the number of moles of SO2 that react.

Now, for each mole of SO2 that reacts we need 5/2 moles of C, that is 0.24x5/2=0.61 moles of C.

We use mass molar of C to calculate the grams.

Mass molar of C=12.01g/mol

Mass of C= Moles of C x Mass Molar

Mass of C= 0.61 mol x 12.01 g/mol = 7.37 g

So, To fully react 5.5 L of SO2 at STP we will need 7.37 g of C.

c)We apply the gas law again but this time we clear the volume.

We also take into account that for each mole of C, 4 moles of CO are produced, so if we have 20 moles of C we will produce 20x4=80 moles of CO.

So, from 20.0 moles of C at STP can be produced 1793.18 liters of CO

Teniendo en cuenta la ley de Boyle, el volumen del oxigeno a 415 mmHg, si la temperatura permanece constante, es 7,69 L.

Al aumentar el volumen, las partículas (átomos o moléculas) del gas tardan más en llegar a las paredes del recipiente y por lo tanto chocan menos veces por unidad de tiempo contra ellas. Esto significa que la presión será menor porque ésta representa la frecuencia de choques del gas contra las paredes.

De esta manera se relaciona la presión y el volumen, determinando la ley de Boyle que dice:

“El volumen ocupado por una determinada masa gaseosa a temperatura constante, es inversamente proporcional a la presión”

La ley de Boyle se expresa matemáticamente como:

P×V=k

Teniendo un estado inicial 1 y final 2, se cumple:

P₁×V₁= P₂×V₂

En este caso, se sabe que:

Reemplazando en la expresión matemática para la Ley de Boyle:

760 mmHg× 4.2 L= 415 mmHg× V₂

Resolviendo:

(760 mmHg× 4.2 L)÷ 415 mmHg= V₂

7,69 L= V₂

Finalmente, el volumen del oxigeno a 415 mmHg, si la temperatura permanece constante, es 7,69 L.

Aprende más:

The first thing we are going to analyze to solve the problem is our data, knowing what we have and what we need.

From what we can see, the problem asks us for the final volume, that is, P₂ , we are going to use the Boyle-Mariotte formula and start to isolate the variable we need to be able to start solving the problem. issue.

P₁V₁=P₂V₂

Clearing >> V₂

\(\boldsymbol{V_{2}=\dfrac{P_{1}V_{1} }{P_{2}} }\)

Substituting our data.

\(\boldsymbol{V_{2}=\dfrac{P_{1}V_{1} }{P_{2}}=\dfrac{(7600 \not{mmHg})(4.2 \ l)}{415\not{mmHg}}=\dfrac{3192}{415}l=7.69 \ l }\)

So our final volume is 7.69 liters.

With this we can conclude that while the pressure decreased the volume increased.

The products Rosa recorded in the last row of the table should be: 2LiCl + 3O₂.

The type of reaction which Rosa did is a decomposition reaction which involves one compound that yields to more than one (or usually two) product. To determine the product, we can deduce that it has to contain elements of Li, Cl and O₂. So, from the options, the answer is 2LiCl + 3O₂.

A decomposition reaction can be described as a chemical reaction in which one reactant breaks down into two or more products. Generally, decomposition reactions need energy input.

Learn more about decomposition reaction at: https://brainly.com/question/16987748

#SPJ4

In 1941, gold was created by neutron bombardment from mercury, but the isotopes were all radioactive.

What is neutron irradiation? When a high-energy neutron bombards a nucleus to start nuclear fission, more neutrons are released during the process. A neutron has no charge, thus when it is pointed at the nucleus, it is not repulsed.

When uranium-235 is irradiated with neutrons, the uranium atoms split, releasing heat and atoms with decreasing atomic numbers as well as more neutrons. Similar to typical fossil fuel power plants, this process, known as fission, may harness the heat produced to produce electricity.

To know more about bombardment visit :-

https://brainly.com/question/1103578

#SPJ4

Answer:

Technically a microorganism or microbe is an organism that is microscopic. The study of microorganisms is called microbiology. Microorganisms can be bacteria, fungi, archaea or protists. The term microorganisms does not include viruses and prions, which are generally classified as non-living.

Answer:

the sketch of the molecule

Explanation:

the chemical formula can only provide the type and number of different elements/compounts in the molecule, but there are lots of different ways they could arrange depending on the formula. A sketch of the molecule would show what type of bonds might be happening and where the elements are located in the compound.

The significant aspect of α hydrogens on a β-dicarboxylic acid is their acidity. Due to the electron-withdrawing effect of the two carboxylic acid groups, the α hydrogens are more acidic than those in a typical alkane.

This increased acidity allows for easier deprotonation, making the α hydrogens more reactive in various chemical reactions, such as enolization and nucleophilic substitution. The α hydrogens on a β-dicarboxylic acid are significant because they are acidic and can be easily deprotonated, leading to the formation of enolate ions. These enolate ions are important intermediates in various organic reactions, such as aldol condensation and Michael addition. Additionally, the presence of the carboxylic acid groups on the β carbon atoms can further stabilize the enolate ions, making them even more reactive. Therefore, the α hydrogens on a β-dicarboxylic acid play an important role in many organic reactions.

To learn more about α hydrogens click here https://brainly.com/question/26736570

#SPJ11
 

Gold (Au) is located in group 11 and the d-block of the periodic table.

Gold (Au) is found in the d-block, specifically in group 11, of the periodic table. The d-block elements are also known as the transition metals. These elements are characterized by the filling of the d orbitals in their electron configuration.

Gold is located in period 6 of the periodic table, meaning it has six electron shells. Its atomic number is 79, indicating that it has 79 protons in its nucleus and 79 electrons orbiting the nucleus. The electron configuration of gold is [Xe] 4f^14 5d^10 6s^1.

The d-block elements are known for their characteristic properties such as high melting and boiling points, good electrical and thermal conductivity, and the ability to form colored compounds. Gold, in particular, is well-known for its attractive yellow color, high malleability, and resistance to corrosion. These properties make gold highly valued and widely used in jewelry, investment, and various industries.

Know more about Periodic Table here:

https://brainly.com/question/28747247

#SPJ11

The difference in coordination of the NO2- ion in the two compounds results in a difference in the electronic structure of the molecule, which affects the wavelength at which the molecule absorbs light.

The two compounds, [Co(NH3)5(ONO)]Cl2 and [Co(NH3)5(NO2)]Cl2, are considered to be structural isomers because they have the same molecular formula but different arrangements of atoms. In the first compound, the NO2- ion is coordinated to the central cobalt ion through the nitrogen atom, while in the second compound, the NO2- ion is coordinated through the oxygen atom.
The difference in coordination of the NO2- ion in the two compounds results in a difference in the electronic structure of the molecule. This, in turn, affects the wavelength at which the compound absorbs light. The absorption of light by a molecule occurs when electrons in the molecule are excited to a higher energy level by the energy of the incident light.
In the case of [Co(NH3)5(ONO)]Cl2, the ONO- ion is coordinated to the cobalt ion through the oxygen atom. This results in a higher energy level for the electrons in the NO bond. As a result, the wavelength at which the molecule absorbs light is shorter.
In contrast, in [Co(NH3)5(NO2)]Cl2, the NO2- ion is coordinated to the cobalt ion through the nitrogen atom. This results in a lower energy level for the electrons in the NO bond. As a result, the wavelength at which the molecule absorbs light is longer.

To know more about wavelength visit:

https://brainly.com/question/31143857

#SPJ11

Answer:

2, 2, 2, and 1

Explanation:

I put that in and it was correct.

Increasing the temperature in the exothermic production of ammonia from its elements, known as the Haber-Bosch process, affects both the reaction rate and yield. Reaction rate typically increases with an increase in temperature. This is due to the fact that higher temperatures provide more thermal energy to the reactant molecules, enabling them to overcome the activation energy barrier more easily. As a result, more productive collisions occur between the reacting species, leading to a faster reaction rate.

However, the yield of the ammonia production is influenced by temperature in a slightly different manner. While the reaction rate may increase, a higher temperature can also cause a decrease in the equilibrium yield of ammonia. This is because the Haber-Bosch process is an equilibrium reaction, and according to Le Chatelier's principle, increasing the temperature will favor the endothermic direction of the reaction. In this case, it means that the equilibrium will shift towards the reactant side, resulting in a lower yield of ammonia. Therefore, there is a trade-off between reaction rate and yield when adjusting the temperature in the Haber-Bosch process. The optimal temperature is usually chosen to maximize the yield while maintaining a reasonable reaction rate for efficient production.

To know more about Haber-Bosch process, visit:

https://brainly.com/question/30753039

#SPJ11

Volume of gas needed at STP = 3.86x 10^2L (option C)

The Ideal Gas Law is a fundamental equation in thermodynamics and relates the pressure, volume, temperature, and amount of a gas in a system. The law is based on the assumption that the gas is composed of non-interacting particles and that the size of the particles is negligible compared to the size of the container in which they are contained.

From the equation, we see that 3 moles of O2 are required for every 1 mole of C2H4.

Therefore, if we have 5.75 mol of C2H4, we will need:

5.75 mol C2H4 x (3 mol O2 / 1 mol C2H4) = 17.25 mol O2
Now we can use the ideal gas law to calculate the volume of oxygen gas at STP (Standard Temperature and Pressure), which is defined as 0°C (273.15 K) and 1 atm of pressure.

The molar volume of an ideal gas at STP is 22.4 L/mol.

V = (nRT) / P
V = (17.25 mol) x (0.0821 L·atm/mol·K) x (273.15 K) / (1 atm)
V = 379.2 L

Therefore, the volume of oxygen gas needed at STP is approximately 379.2 L .

CLosest answer is C) 3.86x10^2 L.

To learn more about Ideal gas law, visit :https://brainly.com/question/28257995

#SPJ11

Answer:

left = HCl

Middle = NH3

Right = water

Explanation:

HCl is a strong acid so it will have the strongest effect

NH3 is a weak acid so it will have a small effect

Water has no effect

8 moles of oxygen are consumed when methane burns and produces 4.00 moles of carbon dioxide.

In chemistry, a mole, sometimes spelt mol, is a common scientific measurement unit for significant amounts of extremely small objects like atoms, molecules, or even other predetermined particles.

The mole signifies 6.022×10²³ units, which is a very big quantity. The mole again for International System of Units is this quantity, according to the General Conference upon Weights as well as Measurements (SI).

CH₄ + 2O₂ → CO₂ +2 H₂O

moles of carbon dioxide=4.00 moles

the mole ratio between oxygen and carbon dioxide is 2:1

moles of carbon dioxide=8 moles

Therefore, 8 moles of oxygen are consumed when methane burns and produces 4.00 moles of carbon dioxide.

To know more about mole, here:

https://brainly.com/question/15209553

#SPJ1

Answer:

Without the respiratory system your blood would be useless. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body

Explanation:

Answer: the only stress that would increase the yield of products (shift right) is decreasing the temperature (e) or increasing the volume (c).

Explanation:

Due to the endothermic nature of the given reaction in the forward direction, there will be a net absorption of heat from the system's surroundings during the course of the forward reaction progression. Reducing the temperature would facilitate the progress of the endothermic course and induce a rightward shift in the reaction.

Moreover, due to a reduction in the number of gaseous moles present on the product side, an amplification in volume would lead to a decline in the overall concentration of the produced species. Consequently, the reaction equilibrium would pivot towards the right-hand side.

Alternatively, raising the pressure would promote the progression of the reaction toward the side with a lower number of gaseous entities. Consequently, the reaction would experience a leftward shift, thereby opposing the intended direction.

Reciprocally, a reduction in the concentration of reactants would induce a shift of the reaction towards the left direction. This phenomenon arises from the decrease in the quantity of reactive particles available to yield collisions and reactions, therefore culminating in a diminished progress rate of the forward reaction.

Answer:

Iodine 131 is an unstable/radioactive isotope of iodine and a normal atom of iodine is stable.

Explanation:

Judging by the behavior of the 2 substances in water according to the illustration, the accurate statement would be that both substances are insoluble in water.

Substances that are soluble in water completely dissolve without forming any solid or suspension. Such substances cannot be retrieved or separated from water by mere filtration. In order to retrieve soluble solutes from water, the water would need to be evaporated off.

Water-insoluble substances can easily be separated from water by filtration or by decanting the water off. They form a kind of suspension or solid in water.

More on water solubility can be found here:  https://brainly.com/question/9394990

Answer:

C

Explanation:

Answer:

Theory.

Explanation:

It is called a theory.

Answer:

The volume of a gas is determined by the volume of the container it is in. Gases take the shape of their container and the volume of the container....

Explanation:

What happens to the volume or size of a balloon as it rises in the air?

When a balloon goes up higher in the air, its size will increase. Since there's less air in the upper atmosphere, there's less stuff pushing back on the balloon, and hence the pressure is lower, which allows the balloon to expand.

Is pressure inside a balloon greater?

The pressure inside the balloon is higher than the pressure on the outside. ... And the direction of airflow is always from higher to lower pressure. If the pressure was same then there would be no airflow and if the pressure outside was higher , air will flow from outside to the inside of the balloon.

What is the relationship between volume and pressure?

Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice versa, when temperature is held constant. Therefore, when the volume is halved, the pressure is doubled; and if the volume is doubled, the pressure is halved.

Mark as brainliest if liked it. Thanks hope this helps

The final result will be the mass of Ca(s) produced. To determine the mass of Ca(s) produced, we can use Faraday's laws of electrolysis.

The equation relating the amount of substance produced to the current and time is: moles of substance = (current × time) / (Faraday's constant × charge of the ion)

First, we need to calculate the charge of Ca²⁺ ion. Calcium has a charge of 2+. Next, we need to calculate the moles of Ca(s) produced using the equation above. moles of Ca(s) = (0.849 A × 19.7 h) / (96485 C/mol × 2)

Finally, we can calculate the mass of Ca(s) using the molar mass of calcium. mass of Ca(s) = moles of Ca(s) × molar mass of Ca

Substituting the values and rounding to 3 significant digits: mass of Ca(s) = (0.849 A × 19.7 h) / (96485 C/mol × 2) × 40.08 g/mol

The final result will be the mass of Ca(s) produced.

To know more about Faraday's laws, refer here:

https://brainly.com/question/31783788#

#SPJ11

4FeO + O2 → 2Fe2O3; ΔH = −560.66 kJ

3.8 moles will evolve 532.63 kJ

An exothermic reaction is a chemical reaction that releases heat or energy to its surroundings. In other words, it is a reaction in which energy is transferred from the system to the surroundings. During an exothermic reaction, the products of the reaction have less energy than the reactants, and the difference in energy is released in the form of heat or radiation.

When we have 3.8 moles of FeO;

If 4 moles does evolve 560.66 kJ

3.8 moles will evolve 3.8 * 560.66 kJ/4

= 532.63 kJ

Learn more about exothermic reaction:https://brainly.com/question/10373907

#SPJ1

The temperatures that describes the value of B is A, 0 °C, because it is the melting point of ice.

The graph shows that the temperature of the ice is increasing as it is heated. The point at which the line changes from solid to liquid is the melting point of ice. This is the temperature at which the ice changes its phase from solid to liquid. The melting point of ice is 0 °C.

The other options are incorrect. The boiling point of water is 100 °C, and the temperature at which water evaporates is also 100 °C. The temperature at point A is greater than 0 °C, but it is not greater than 100 °C.

Find out more on temperatures here: https://brainly.com/question/4735135

#SPJ1

Answer:

Physical state of reactants

Temperature

Concentration of reactants

Presence of a catalyst

Explanation:

The larger the surface area of a reactant, the faster the rate of the reaction. If the reactant is in powdered form, the reaction takes place faster than when the reactant is in solid or block form. This is due to the fact that the latter has larger surface area

Increase in temperature causes reactant molecules to gain kinetic energy thus increasing the rate if reaction