The higher the concentration of greenhouse gases like CO₂ and methane, the lower the temperatures on Earth.
True
False

Answer: A

Explanation:

Extreme weather events follow normal climate patterns.

Answer:

attractive smell and bright colours

Answer: I think you're supposed to add the protons and neutrons and then that's your answer. Sorry if I'm wrong :/

Explanation:

Compared to dichromate oxidizing agents, oxone is safe, inexpensive, and environmentally sound.

Oxone (chemical formula: KHSO5) is potassium peroxymonosulfate. It's a versatile oxidant that oxidizes aldehydes to carboxylic acids. Oxone is produced by combining oleum and hydrogen peroxide. It's soluble in water, methanol, and other solvents and dissolves fast.

Since it's relatively easy and cheap to make, oxone is used for various things in industrial and consumer applications, such as:

The powder itself can cause serious skin problems (since it is corrosive), but oxone solution is nonirritating and not as corrosive (compared to bleach, for example), which makes it safer than most oxidizing agents.

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momentum = mass x velocity

When know that:

momentum is 12 km m/s

Mass is 6 kg

Hence, velocity = 12/ 6 = 2m/s

Answer:

I hope this will help

Explanation:

Copper is purified by electrolysis . Electricity is passed through solutions containing copper compounds, such as copper(II) sulfate. The anode (positive electrode ) is made from impure copper and the cathode (negative electrode) is made from pure copper.

Answer:

carbon is non reactive

Explanation:

it doesn't react readily with other elements

due to its 4 valence electrons

The exact number of acetylcholine (ACh) molecules required to completely activate the cholinergic nicotinic receptor depends on several factors, including the receptor density, affinity of the receptor for ACh, and the efficiency of the receptor activation process.

 Cholinergic nicotinic receptors are ligand-gated ion channels found in the nervous system that respond to the neurotransmitter acetylcholine (ACh). The activation of these receptors occurs when ACh molecules bind to specific binding sites on the receptor.

  The exact number of ACh molecules required for full receptor activation can vary and is influenced by multiple factors. One crucial factor is the receptor density, which refers to the number of receptors present on the cell surface. Higher receptor density would require more ACh molecules to engage and activate a larger number of receptors.

  Additionally, the affinity of the receptor for ACh plays a role. Affinity refers to the strength of the binding interaction between ACh and the receptor. Receptors with higher affinity for ACh will require fewer ACh molecules to achieve activation compared to receptors with lower affinity.

  Furthermore, the process of receptor activation can be cooperative, meaning that the binding of one ACh molecule can facilitate the binding of additional ACh molecules to nearby receptor sites. Cooperative binding can increase the overall efficiency of receptor activation and reduce the number of ACh molecules required for full activation.

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The volume of nitrogen produced from the reaction of 6.8 L of carbon monoxide is 3.7 L

In order to determine the volume of nitrogen produced from the reaction of 6.8 L of carbon monoxide, we need to use the balanced equation for the reaction:

2CO(g) + 2NO(g) -> N2(g) + 2CO2(g)

From the equation, we can see that for every 2 moles of CO that react, 1 mole of N2 is produced. The volume of a gas is directly proportional to the number of moles of the gas present.

If the initial volume of CO is 6.8 L, we can assume that the number of moles of CO is

6.8 L / 24.45 L/mol = 0.278 mol.

Therefore, the number of moles of N2 produced would be

0.278 mol CO * (1 mol N2 / 2 mol CO) = 0.139 mol N2.

Finally, using the ideal gas law PV = nRT (where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature), we can calculate the volume of N2 produced:

V = nRT / P

V = 0.139 mol N2 * (8.314 J/mol*K) * (273 K) / (1 atm) = 3.7 L

So, the volume of nitrogen produced from the reaction of 6.8 L of carbon monoxide is 3.7 L.

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Answer:

Cloud form

Explanation:

Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. ... Once water evaporates, it also helps form clouds.

___________________________________________________________

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Answer:

sunglasses

Explanation:

To determine which area will provide the greatest amount of space for planting veggies and herbs, you need to compare the area of the field and the area of the garden.

To compare the areas of the garden and field, we need to measure their dimensions. Let's assume that the garden is 20 feet by 20 feet, which gives us an area of 400 square feet. On the other hand, let's assume that the field is 50 feet by 50 feet, which gives us an area of 2500 square feet.

As we can see, the field has a much larger area than the garden, which means that it will provide the greatest amount of space to plant veggies and herbs. Therefore, it would be better to use the field for gardening purposes rather than the garden.

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In order to determine the pH in the given scenarios, several calculations and considerations need to be taken into account.Firstly, the Henderson-Hasselbalch equation can be used, which relates the pH of a solution to the pKa of the acid and the ratio of its conjugate base to the acid. This equation is pH = pKa + log([A-]/[HA]), where [A-] is the concentration of the conjugate base and [HA] is the concentration of the acid.

The first problem asks for the pH of a solution made by mixing 0.20 mol of acid HA with 0.30 mol of its conjugate base NaA. The pH can be calculated using the Henderson-Hasselbalch equation, pH = pKa + log([A-]/[HA]). Given that the pKa is 6, we can plug in the values and solve for the pH.

The second problem asks for the pH after adding 0.05 mol of NaOH to the previous solution. Since NaOH is a strong base, it will react with the acid HA and form water.

The amount of NaOH added is small compared to the amount of acid, so we can assume that the acid will be fully neutralized. We can calculate the resulting concentration of the acid and its conjugate base and use the Henderson-Hasselbalch equation to find the new pH.

The third problem involves mixing 200 mL of 0.20 M HA with 300 mL of 0.30 M NaA. We need to calculate the concentrations of the acid and its conjugate base after mixing, and then use the Henderson-Hasselbalch equation to find the pH.

The fourth problem asks for the pH after adding 10 mL of 0.50 M HCl to the previous solution. Since HCl is a strong acid, it will completely dissociate and increase the concentration of the acid HA.

We need to calculate the new concentrations of the acid and its conjugate base and use the Henderson-Hasselbalch equation to find the new pH.

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Answer:

Has 5 protons and the atomic number is 5.

Explanation:

The atomic number is equal to the number of protons and every element has a different number of protons. Therefore, finding how many protons there are and comparing to atomic numbers (or vice versa) would allow you to find if the atom is boron.

Answer:

A. A thunderstorm can form.

Explanation:

When it meets warmer air a cold front forms and clouds will appear as the warm air rises and then cools. This may lead to heavy rain along the cold front.

The phrases that applied to molecular compounds are often gases and liquids, which have low melting points and and use covalent bonding. So. options (b), (c) and (e) are correct.

Molecular compounds are defined as the chemical compounds that take the form of discrete molecules. The molecular compounds are very different from ionic compounds like sodium chloride. These compounds are held together by covalent bonds. Molecular compounds are usually gases and liquids at room temperature due to their low melting and boiling points. Some molecular compounds are solids at room temperature but they tend to be soft and flexible. The boiling points of these compounds are also low due to weak intermolecular forces because it does not take that much energy to separate and vaporize the molecular molecules.

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The answer is B hydro sphere

Answer:

Explanation:

tab water

the sea water

cup of orange juice

blood

cup of tea

Answer: practically if the solvent is more in terms then it is diluted

Hence we can give various answers

How many moles of tungsten atoms are in 4.8 * 10^25 atoms of tungsten?

Avogadro's number is the number of particles that we have in one mol of particles. It is 6.022 *10^23. For example: in 1 mol of atoms there are 6.022*10^23 atoms.

It's like a dozen. When we say a dozen atoms, we mean 12 atoms. So, when we say a mol of tungsten atoms, we mean 6.022 *10^23 atoms of tungsten.

1 mol of atoms of tungsten = 6.022 *10^23 atoms of tungsten

We will use that relationship to find the number of moles of tungsten atoms that we have in 4.8 *10^25 atoms of tungsten.

number of moles of tungsten atoms = 4.8 *10^25 atoms * 1 mol of atoms/(6.022 *10^23 atoms)

number of moles of tungsten atoms = 79.7 moles = 8 *10^1 moles

number of moles of tunsten atoms = 8.10^1 moles

Answer: b) 8*10¹ moles

NAD+/NADH moves energy by gaining or losing electrons, in the form of hydrogen. NAD+ (nicotinamide adenine dinucleotide) and NADH (reduced form of NAD+) are involved in redox reactions, specifically in the transfer of electrons during cellular respiration.

NAD+ acts as an oxidizing agent by accepting electrons, while NADH acts as a reducing agent by donating electrons.

During the process of cellular respiration, glucose is broken down, and electrons are transferred to NAD+, resulting in the formation of NADH. NADH then carries these electrons to the electron transport chain, where they are ultimately used to generate ATP (adenosine triphosphate), the energy currency of cells.

In this electron transfer process, NAD+ gains electrons to form NADH, and vice versa. The movement of electrons between NAD+ and NADH is directly involved in the transfer of energy, as the electrons carry energy that is ultimately used to produce ATP.

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Answer:

Its chemical composition

Answer:

Number of protons

Explanation:

The information can typically be found on the periodic table is:

D. The number of protons an element has

The information typically found on the periodic table includes the chemical elements' properties, including:

Now, let's briefly go over the other options:

A. The names of molecules formed by the element: The periodic table does not typically list the names of molecules formed by elements. Instead, it provides information about the individual elements themselves.

B. The date an element was discovered: The periodic table does not include information about when an element was discovered. It focuses on the fundamental properties of the elements.

C. The number of isotopes an element has: The periodic table may provide information about the atomic mass of the element, which is the weighted average of all its naturally occurring isotopes. However, it does not explicitly list the number of isotopes an element has.

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Here is the Answer I Hope this Helps:-

The closer the electrons are to the nucleus, the more tightly they are bound, thus increasing the electronegativity of the atom.

A Mind Map is  described as an easy way to brainstorm thoughts organically without worrying about order and structure which allows you to visually structure your ideas to help with analysis and recall.

A mind map may transform a large list of uninteresting facts into a vivid, memorable, and meticulously structured diagram that corresponds to the way your brain naturally processes information.

We have two types of Combustion which are the complete combustion and incomplete combustion.

Complete Combustion is said to occur when there is sufficient oxygen, resulting in the complete oxidation of the fuel. It produces carbon dioxide and water as the primary products.

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The volume of Cl2 gas formed at 0.6 atm and 289K is 12.3 L. we first need to determine the molar mass of C2H2Cl4. The molar mass of C2H2Cl4 is 167.84 g/mol. The volume of Cl2 gas formed at 0.6 atm and 289K is 12.3 L.

To find the number of moles of C2H2Cl4, we divide the mass by the molar mass:

Number of moles of C2H2Cl4 = 51 g / 167.84 g/mol = 0.304 moles

According to the balanced chemical equation, 2 moles of Cl2 are required to produce 1 mole of C2H2Cl4. Therefore, the number of moles of Cl2 required to react with 0.304 moles of C2H2Cl4 is:

Number of moles of Cl2 = 2 × 0.304 moles = 0.608 moles

To calculate the volume of Cl2 gas formed at 0.6 atm and 289K, we can use the ideal gas law:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant (0.0821 L·atm/mol·K), and T is the temperature in Kelvin.

We can rearrange this equation to solve for V:

V = nRT / P

Substituting the values, we get:

V = (0.608 moles) × (0.0821 L·atm/mol·K) × (289 K) / (0.6 atm) = 12.3 L

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Answer:

non metal forms anions

metals for cations

nonmetals and metals bond because of electron transfer

an example is NaCl(Sodium chloride)

Yes, an atom's nucleus is held together by the strong nuclear force. The strong nuclear force is a fundamental force of nature that binds together protons and neutrons in the nucleus.

This force acts over a very short range and is much stronger than the electrostatic force of repulsion between the protons. The strong nuclear force is responsible for keeping the protons and neutrons together in the nucleus, and it is also responsible for binding together the nucleons to form the nucleus of an atom.

This force is also responsible for the stability of the nucleus, as it helps counteract the electrostatic force of repulsion between the protons. The strong nuclear force is also responsible for the binding energy of the nucleus, and it is this energy that holds the nucleus together.

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