What is the cathode

The correct chronological order for the discoveries by the scientists are  Dalton, Thompson, Rutherford, Bohr. Therefore, option B is correct.

The act of discovering something, whether it be data, a location, or an item, particularly when doing so for the first time: the discovery of electricity.

Leonardo was a prolific scientist. a travel or exploration voyage. An investigation into a murder was opened when a corpse was found in the brush.

While Discovery aids in identifying the adjustments and enhancements that are required, it also aids in streamlining and ranking those changes, helping you choose which requests are most crucial and how to accommodate everyone's requirements.

In order to make a discovery, one must present observational data and make an effort to form a preliminary knowledge of a phenomenon.

Thus, option B is correct.

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C and D structures function mainly in transport. Hence, option D is correct.

The membrane structures that function in active transport eg. integral proteins.

A major role of the plasma membrane is transporting substances into and out of the cell.

The plasma membrane is selectively permeable, allowing only certain substances to pass through.

Proteins embedded within the plasma membrane helps to move hydrophilic, polar molecules into the cell.

Hence, option D is correct.

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Answer:

True

Explanation:

Valence electron:

No. of electrons present in the outermost shell of any atom is called valence electrons. Valence electrons determines the chemical properties of element.

Atomic no. of S = 16

Electronic configuration of S = [tex]1s^22s^22p^63s^23p^4[/tex]

Energy shell (n = 3) is the outermost shell

Valence electrons = 6

Atomic no. of Cl = 17

Electronic configuration of S = [tex]1s^22s^22p^63s^23p^5[/tex]

Energy shell (n = 3) is the outermost shell

Valence electrons = 7

So, sulfur has 6 valence electrons and Cl has 7 valence electrons.

The statement 'Sulfur has fewer valence electrons than chlorine.' is true.

The most appropriate word to complete the sentence is: stay the same.

The complete sentence is then written as: "The electrical conductivity of a sample will stay the same when the size of the sample increases."

Conduction refers to the transfer of thermal energy or electric charge as a result of the movement of particles through a conductor such as a metal.  

Generally, when conduction relates to electric charge (current), it is referred to as electrical conduction.

Hence, electrical conductivity is a measure of the ability of a material or metal to conduct electricity by allowing the flow of electrons and current.

In Science, there are three (3) main factors that affect the electrical conductivity of a material and these include;

However, the size of a material does not affect its ability to conduct electricity.

In conclusion, the electrical conductivity of a sample will stay the same when the size of the sample increases.

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The answer is (D) Solid Metal      

Anton van Leeuwenhoek discovered tiny, single-celled organisms known as animalcules, now identified as bacteria, by examining dental plaque under his homemade powerful simple microscope.

Anton van Leeuwenhoek, often referred to as the Father of Microbiology, made groundbreaking discoveries using a microscope he crafted himself. One of his most notable findings was when he examined the plaque from his own teeth. What he saw were tiny living organisms with a single cell, which he termed animalcules, now known as bacteria. His simple microscopes, through his superior lens-making skill, were almost as powerful as modern light microscopes. Leeuwenhoek's microscopes provided better resolution than other microscopes of his time, enabling him to observe human cells and bacteria closely. The discovery of these microorganisms laid the foundations of microbiology, a field that has evolved significantly since his time.

Anton van Leeuwenhoek discovered bacteria, which he called animalcules, with self-made microscopes almost as powerful as modern ones, marking a seminal event in microbiology.

When Anton van Leeuwenhoek examined the plaque from his teeth under his homemade microscope, he discovered tiny living entities, which he named animalcules ("tiny animals"). These observed organisms are what we today refer to as bacteria

Leeuwenhoek's skill in crafting lenses led to the creation of a microscope that was nearly as powerful as our modern light microscopes, enabling him to be the first person to observe human cells and bacteria. His work marked a significant leap in the field of microbiology, confirming the existence of microscopic life which was previously only speculated.

Answer:

It will stay the same

Explanation:

I took the test and got a 100%

The products H₂O and CO₂ from the decomposition of H₂CO₃ contain a total of 3 oxygen atoms, with one from the water and two from the carbon dioxide.

The question How many oxygen atoms are in the product H₂CO₃ H₂O+CO₂is a chemistry problem that involves counting the number of oxygen atoms in the products of a chemical reaction. The compound H₂CO₃ decomposes into H₂O (water) and CO₂ (carbon dioxide). To determine the number of oxygen atoms, we look at the products H₂O and CO₂. Water has one oxygen atom, and carbon dioxide has two oxygen atoms. Therefore, each molecule of H₂O has one oxygen, and each molecule of CO₂ has two oxygens.

We sum the number of oxygen atoms from both products: 1 oxygen from H₂O and 2 oxygens from CO₂, giving us a total of 3 oxygen atoms in the products of the reaction.

Rocks are made up of minerals. The hardest mineral is diamond. The softest mineral is talc, which is ground up to make talcum powder.

On cold winter nights, a mother places a portable heater in her toddler's bedroom. The heater does not have a fan to blow hot air, it only has simple metal coils that get very hot.  Therefore, option C is correct.

Metal coil is created by winding or coiling a finished steel product, such as a sheet or strip, after it has been rolled. The width of the steel coil is substantially greater than the thickness. Steel coils can be categorized as Hot Rolled, Cold Rolled, or Galvanized, depending on the production process.

Depending on the industry, different uses for steel coil can be found, but some of the more common and well-known ones are pipe manufacture, structural steel components, electronic components, consumer goods, automobile parts, and many more.

In the ignition system of a vehicle, the metal coil is an induction coil that converts the battery's voltage to the thousands of volts required to produce an electric spark in the spark plugs that ignites the fuel.

Thus, option C is correct.

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Water's composition remains as H2O across all states—solid (ice), liquid (water), and gas (steam)—while the arrangement and kinetic energy of the molecules change, affecting the density and physical properties of water.

Understanding Water's States of Matter

Water can exist in solid, liquid, and gas states; namely ice, liquid water, and steam, respectively. The composition of water does not change across these states; it is always H2O, with two hydrogen atoms bonded to one oxygen atom. However, what changes during a change of state is primarily the amount of kinetic energy of the water molecules, which affects their movement and arrangement.

As water moves from solid to liquid, the molecules gain kinetic energy and start to move more freely, allowing the water to take the shape of its container. As a liquid transforms into a gas, the molecules gain even more kinetic energy, move faster, overcome attractive forces, and spread out to fill the entire volume of the container. The changes in states of matter are physical changes and do not affect the chemical makeup of water molecules.

The density of water also changes with the state it is in. The density is highest in the liquid state and decreases when water is in the form of its solid state, ice. This is due to the molecular arrangement in ice that creates a crystalline structure with more space between the molecules. Conversely, water vapor has the least density as the molecules are spread out the most.

The excretory system removes waste from the body.

It includes several organs such as the kidneys, large intestine, liver, skin, and lungs. These organs work together to filter out harmful metabolic waste products and excess water from the blood, ensuring that waste does not build up to harmful levels and maintaining the body's homeostasis.

Functions of the Excretory System:

Answer are B,D, and E

Answer: There would be no more coal left to use.

Explanation:

nonrenewable resources are rare and not so easily to be replaced

Answer: Two different ways carbon can get from shells to the environment is through limestone, lithosphere, spring of gushing lava, + barometrical CO2. The subsequent method to arrive would be through the maritime CO2, marine creatures + plants, silt, flammable gas, power plants, and afterward environmental CO2.

Explanation:

Answer:

All of the above i think sorry if im wrong

Explanation:

Answer : The correct options is, (C) Orange juice, yogurt.

Explanation :

Acid : It is a substance that has ability of donating proton or hydrogen ion, [tex]H^+[/tex].

The properties of an acid are :

Base : It is a substance that has ability of donating hydroxide ion, [tex]OH^-[/tex].

The properties of an base are :

As we know that,

Antacid : It is a base that is used for the neutralization of stomach acidity. So, it is bitter in taste.

Orange juice : It is an acid in which citrus acid present in it. So, it is sour in taste.

Toothpaste : It is a base that is used for cleaning teeth. So, it is bitter in taste.

Yogurt : It is an acid in which lactic acid present in it. So, it is sour in taste.

Hence, the substance likely to have a sour taste are orange juice, yogurt.

            Potassium has the largest atomic radius.

                        Using periodic table trends one can easily compare the atomic radii of elements. The trends in atomic radii are as follow,

Trends in Groups:

                             Moving from top to bottom along the groups the atomic radii increases because as you move from top to bottom the number of shells increases hence, the distance of valence electrons from nucleus also increases and therefore, atomic radius increases.

Trends is Periods:

                             Moving from left to right along the periods the atomic radii decreases. This is because the number of protons and electrons increases but the the valence shell remain the same hence, causing more nuclear charge and more attraction between the valence electrons and nucleus.

           Potassium, Calcium, Cobalt and Nickle all are present in same period. Potassium present at the extreme left will have greater atomic radii of 0.227 nm while Co and Ni at the middle of period will have atomic radii of 0.125 nm each. While, the atomic radius of Calcium next to K is 0.197 nm.

Potassium has the largest atomic radius because the atomic radius generally increases as you move down on the periodic table, and Potassium is highest in the given options.

The atomic radius generally increases as you move down a group in the periodic table because as you go down a group, an additional electron shell is added, increasing the distance between the nucleus and the outermost electron shell. Of the elements listed: Potassium, Calcium, Cobalt and Nickel, Potassium is highest in Group 1 (also known as Alkali metals), and thus it has the largest atomic radius.

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Answer:0.00000000001

0.001

0.00000001

100,000,000

Explanation:i am big brain

Answer:

0.00000000001

0.001

0.00000001:100,000,000

Explanation:

i just did it on edge