10. How many grams of carbon dioxide are produced when 2. 50 g of sodium hydrogen carbonate reacts
with excess citric acid according to the equation:
3 NaHCO3 + H3 C6H5O7 → Na3 C6H5O7 + 3 CO2 + 3H₂O?

Answer:

I don't know 100% but im pretty sure its electrons, if im wrong im really sorry let me know in the comments ill change it

explanation

the nucleus has more weight but its more compact but the electrons are spread apart circling the nucleus and therefor take up more space

The modern periodic table consists of metals, non-metals and metalloids. The elements are arranged in the increasing order of their atomic numbers. The elements which are shaded in green colour are metalloids.

The elements which exhibit the properties of both metals and non-metals are called metalloids. Some of the important metalloids are germanium, silicon, antimony, tellurium and polonium.

The physical and chemical properties of the metalloids fall in between the metal and non-metal categories. The metalloids have metallic properties and appearances, but they are brittle and mediocre electricity conductors.

The metalloids also have electronic band structures which are similar to semimetals or semiconductors. These elements generally have intermediate ionization energies and electronegativity. They form both amphoteric or weakly acidic oxides.

These elements also form metallic alloys. So metalloids behave like metals as well as like non-metals.

Thus the green shaded elements are metalloids.

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Your question is incomplete most probably your question was:

The green elements on the table are called blank elements

Answer:

Save Fuel, Save Earth

Fuel and time wait for none!

Be wise, don’t waste fuel

Save fuel, stop being cruel

Don’t contribute towards global warming

Care for future, save fuel

Hope That Helps!!!

Explanation:

Here are Best Slogans on Save Fuel.

-Towards a better future.

-Save to sustain.

-Save fuel for a better world.

-Make sure to keep some for the next generation.

-Our resources are limited.

-Save to expand.

-Saving fuel has no alternatives.

-Save money while saving fuels.

Answer:  What Happens When the Bonds in the Atoms in the Reactants Break​?

Explanation: In a chemical reaction, bonds between atoms in the reactants are broken and the atoms rearrange and form new bonds to make the products.

A Visual Example Would Look Something Like This:

The direction of energy flow in simple food chain is always sun=> plants( producers)=> primary consumers=> secondary consumers=> tertiary consumers, than finally after death of an organism, to decomposers

The direction of energy flow in simple food chain is always sun=> plants( producers)=> primary consumers=> secondary consumers=> tertiary consumers.

The sequence of events within an ecosystem known as a "food chain" occurs when one live organism eats a different organism, which is then eaten by a larger organism. A food chain is created by the transfer of energy as well as nutrients from one creature to another at various trophic levels. A food web is comprised of numerous linked food chains.

The feeding habits or connections between living things are also explained by the food chain. Trophic level is the term used to describe the orderly phases in a food chain, from producers from the bottom through primary, secondary, and tertiary consumers. A trophic level is any position along a food chain.  A food web and a food chain are similar, but a food web seems far bigger. The direction of energy flow in simple food chain is always sun=> plants( producers)=> primary consumers=> secondary consumers=> tertiary consumers.

Therefore, the direction of energy flow in simple food chain is always sun=> plants( producers)=> primary consumers=> secondary consumers=> tertiary consumers.

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Explanation:

Acidic radical

Acid radical is the ion formed after the removal of Hydrogen ion (H+) from an acid. Example: When H2SO4 loses H+ ion, it forms HSO4− which is an acid radical.

Basic radical

The ion formed after the removal of hydroxide ion (OH−) from a base is known as basic radical.

Answer:

A.) Cells

Explanation:

Cells are the most basic unit of life because all living things have at least one cell, be it a tiger or a single-celled bacteria. Single-celled organisms, which are still very much life, do not have any tissues, organs or organ systems. Cells contain the organism's specific genetic information which define said organism.

Ascorbic acid acts as a coenzyme and is essential for the production of collagen, neurotransmitters, and carnitine.

Collagen is a protein found in skin, bones, and cartilage, and ascorbic acid is necessary for its synthesis. On the other hand, neurotransmitters are chemical messengers in the nervous system, and ascorbic acid is needed for their synthesis.

Lastly, carnitine is a compound that helps transport fatty acids into cells to be used as energy, and ascorbic acid is necessary for its biosynthesis. Therefore, ascorbic acid is an important nutrient that plays a crucial role in several physiological processes in the human body.

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Answer:

\(\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}\)

Ala-Val dipeptide at neutral pH: Ala is negatively charged (COO-), Val is positively charged (NH3+).

(Ala-Val) is a dipeptide composed of two amino acids: alanine (Ala) and valine (Val). At neutral pH, the carboxyl group (COOH) of alanine loses its hydrogen ion (H+) and becomes negatively charged (COO-), while the amino group (NH2) of valine gains a hydrogen ion (H+) and becomes positively charged (NH3+).

The dipeptide can be represented as follows:

         H       H

         |       |

   H3N+-CH-C-COO-

         |       |

         CH3     CH(CH3)2

Here, the NH3+ represents the positively charged amino group of valine, and the COO- represents the negatively charged carboxyl group of alanine. The hydrogen atoms (H) are attached to the appropriate positions on the carbon backbone.

Please note that this is a simplified representation, and the actual structure of the dipeptide may have different conformations depending on the specific arrangement of atoms and bonds.

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In chemistry, a sigma bond (σ bond) is a chemical bond formed by the overlap of two atomic orbitals. On the other hand, a pi bond (π bond) is a chemical bond formed by the overlap of two p orbitals.

Sigma bonds are the strongest type of covalent bond, with a bond strength of about 280-350 kJ/mol. They are also the shortest bond, with an average length of about 0.15 nanometers (nm).

Sigma bonds are characterized by their short bond length and high bond energy. They are also directional, meaning that they are stronger in certain orientations than in others.

Pi bonds are weaker than sigma bonds, with a bond strength of about 70-100 kJ/mol. They are also longer than sigma bonds, with an average length of about 0.2nm.

Pi bonds are characterized by their longer bond length and lower bond energy compared to sigma bonds. They are also less directional than sigma bonds, meaning that they are relatively equally strong in all orientations.

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Covalent bonds has two types which are a sigma bond is a chemical bond formed by the overlap of two atomic orbitals and a pi bond (π bond) is a chemical bond formed by the overlap of two p orbitals.

Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.

Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.

Sigma bonds are the strongest covalent bonds while the pi bonds are weaker covalent bonds .Covalent bonds are affected by electronegativities of the atoms present in the molecules.Compounds having covalent bonds have lower melting points as compared to those with ionic bonds.

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Answer:

it is an organic molecule

Explanation:

it's a compound called chromium, phosphate tetrahydrate, where tetra stands for 4 , as there are four water molecules attached to the compound.

endpointVinegar is also called as acetic acid, and we can write it in the following way CH3COOH. When we talk about titration, it refers to the amount of base needed to neutralize the acid. So there is a chemical reaction involved. The reaction between vinegar and NaOH base is as follows:

We have a 1 to 1 ratio, i.e. to neutralize x moles of vinegar we need the same moles of NaOH. Let's calculate how many moles of acid are believed to be in the solution. We will use the molarity = 0.78M = 0.78 mol/L.

Then we need 0.016 moles of NaOH, the volume required will be:

So, the volume that would be needed of NaOH to see an end point is 17.23 mL

As the MnO4- ion is absent from the balanced equation, adding MnO4- ions to this reaction would have no impact on the outcome of the reaction. Thus, none of the available choices is appropriate.

Manganese cannot be oxidised in MnO4 because it is at the highest possible oxidation state of +7; as a result, disproportionation is not feasible. In contrast, MnO42 has Mn in the +6 oxidation state, which can be both oxidised and reduced.

A disproportionation reaction is one in which the same element undergoes both oxidation and reduction at the same time. In this kind of reaction, one material yields two product

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Answer:

Cohesion exists because of the polarity of water. The water has a dipole that causes it to act like a magnet, attracting other water molecules to it. ... The salt water has a much lower cohesion than plain water so it's attractive forces are less than plain water.

Answer:

Its A

Explanation:

Just took the test and got a 100%

The Binding Energy in Kj/mol Cl for chlorine-37 is 3.15 x 10^5 kj/mol. Cl-37 has 17 protons and 20 neutrons. To compute the binding energy, the mass of a single atom should first be calculated.

Using the masses given in the question (in g/mol):Mass of 17 protons (17 x 1.00783) = 17.16311 g/mol Mass of 20 neutrons (20 x 1.00867) = 20.1734 g/mol Mass of Cl-37 (36.94740) = 36.94740 g/mol Total mass = 74.28391 g/mol Using the c^2 factor, the mass of 1 atom can now be converted to energy:74.28391 g/mol x (1 mol/6.022 x 10^23 atoms) x (2.998 x 10^8 m/s)^2 = 6.305 x 10^-10 J/atom The energy per mole of atoms is computed as follows:6.305 x 10^-10 J/atom x (6.022 x 10^23 atoms/mol) = 3.796 x 10^14 J/mol Finally, this value must be converted to kilojoules per mole:3.796 x 10^14 J/mol x (1 kJ/1000 J) = 3.796 x 10^11 kJ/mol (rounded to 3 significant figures)The binding energy per mole of Cl-37 is 3.796 x 10^11 kJ/mol. The value must be divided by Avogadro's number to find the binding energy per atom:3.796 x 10^11 kJ/mol / 6.022 x 10^23 atoms/mol = 3.15 x 10^-13 kJ/atom (rounded to 3 significant figures) Therefore, the binding energy in Kj /mol Cl for chlorine-37 is 3.15 x 10^5 Kj /mol.

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A substance that changes in a chemical reaction and is represented by the reaction arrow on the left side of a chemical equation.

A substance formed in a chemical equation. and written on the right side of the reaction arrow in a chemical equation is referred to as a product. According to the law of conservation of matter, matter cannot be created or destroyed. The number of atoms of each element in the reactants must be the same as the number of atoms of each element in the products in chemical equations. The atoms and molecules that interact in a chemical reaction are referred to as reactants. The atoms and molecules produced by a chemical reaction are referred to as products.

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Answer:

The baby`s reflex to grab is an innate behavior.

It`s not B because if the baby is 1 day old it`s not going to 'remember'.

It`s not C because it hasn`t really 'learned' anything.

It`s not D because babies can`t sense heat like a snake or something. -_-

Hope that helps

I also love the pfp

The statement which statement best describes why the baby grasps Beth’s finger is that it is a reflex to grab is an innate behavior.

In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action and nearly instantaneous response to a stimulus.

The simplest reflex is initiated by a stimulus, which activates an afferent nerve. The signal is then passed to a response neuron, which generates a response.

Reflexes are found with varying levels of complexity in organisms with a nervous system. A reflex occurs via neural pathways in the nervous system called reflex arcs. A stimulus initiates a neural signal, which is carried to a synapse. The signal is then transferred across the synapse to a motor neuron, which evokes a target response. These neural signals do not always travel to the brain,so many reflexes are an automatic response to a stimulus that does not receive or need conscious thought.

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Answer:

lol good luck

Explanation:

u need it

Answer:

Explanation:

A 12.48 g sample of an unknown metal, heated to 99.0 °C was then plunged into 50.0 mL of 25.0 °C water. The temperature of the water rose to 28.1 Go to calculating final temperature when mixing two samples of water ... Problem #1: A 610. g piece of copper tubing is heated to 95.3 °C and placed in an ... The two rings are heated to 65.4 °C and dropped into 12.4 mL of water at 22.3 °C. ... Problem #4: A 5.00 g sample of aluminum (specific heat capacity = 0.89 J g¯1

In addition to other natural and human-made processes, the burning of organic materials is the main source of formaldehyde formation.

The simplest of the aldehydes, formaldehyde (HCHO), commonly known as methanal, is an organic molecule utilized in huge quantities during numerous chemical industrial processes. It is often supplied as formalin, an aqueous solution with a 37 percent concentration, and is primarily manufactured via the vapor-phase oxidation of methanol.

Industrial production of formaldehyde involves the catalytic oxidation of methanol. The most often used catalysts are iron(III) oxide, iron molybdenum oxides, and silver metal [e.g. Vanadium oxides or iron(III) molybdate with a molybdenum-enriched surface. Methanol and oxygen react at around in the commonly used formox process.

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Ethanol, propanol, and methanol are three simple alcohols. They can be grouped together because they all share the same hydroxyl group.

A hydroxyl group is a functional group consisting of an oxygen atom with two lone pairs covalently bonded to a hydrogen atom. The chemical representation of the hydroxyl group is -OH.

Alcohols, Sugar and carboxylic acids usually contain hydroxyl groups. All the alcohol have the same functional group which is why they are represented by the formula ROH. Here R is an alkyl group and OH is a hydroxyl group.

Alcohols are formed when this group is added to an organic compound.

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Answer:

Explanation:

umm which one? i don't see anything.

The ketone that can be shown by the description have been shown in the image attached.

A strong analytical method known as mass spectrometry can reveal important details about the make-up, structure, and characteristics of molecules. It enables researchers to pinpoint and examine a sample's chemical and isotopic features.

The mass of a molecule or an ion can be precisely determined using mass spectrometry. The mass-to-charge ratio (m/z) measurement enables the recognition and verification of a compound's molecular formula. Particularly relevant to the study of pharmaceutical analysis, biochemistry, and organic chemistry.

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When a nonmetal bonds with a nonmetal, electrons are shared between the two atoms, which creates a covalent bond. This type of bond involves the sharing of electrons between atoms to create a stable molecule. Therefore, the correct answer to the question is that a covalent bond is involved and a molecular compound forms.

Covalent bond is formed by sharing of electrons between two non metals to complete their octet. The covalent bond is formed between two non metals which have similar electronegativity.

While ionic bond is formed by gain or lose of electrons between metal and non metal and complete their octet.It is formed between two ions in which one is positive due to lose of electrons and other non metal is negative ion  due to gain of electron.

Ionic bond is formed by lose or gain of electrons therefore, it is stronger than covalent bond.

Example of ionic bond is NaCl

Example of covalent bond is

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