Will give brainly! How was the ancient idea of elements similar to what we now know about elements, and how was it different?

Answer:

Solid and gas

Explanation:

1. print fossil

2. carbonized fossil

3. petrified fossil

4. cleavage

5. landform

6. igneous

7. metamorphic

8. print fossil

9. geology

10. sedimentary

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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.

Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of  organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.

Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.

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Answer:

Although Dmitri Mendeleev is most often cited as the inventor of the modern periodic table, his table was just the first to gain scientific credibility. ​It wasn't the first table that organized the elements according to periodic properties.

There are about 94 elements on the periodic table that occur in nature. All of the other elements are strictly human-made. Some sources state more elements occur naturally because heavy elements may transition between elements as they undergo radioactive decay.

Technetium was the first element to be made artificially. It is the lightest element that has only radioactive isotopes (none are stable).

The International Union of Pure Applied Chemistry, IUPAC, revises the periodic table as new data becomes available. At the time of this writing, the most recent version of the periodic table was approved in December 2018.

The rows of the periodic table are called periods. An element's period number is the highest unexcited energy level for an electron of that element.

Columns of elements help to distinguish groups in the periodic table. Elements within a group share several common properties and often have the same outer electron arrangement.

Most of the elements on the periodic table are metals. The alkali metals, alkaline earths, basic metals, transition metals, lanthanides, and actinides all are groups of metals.

The present periodic table has room for 118 elements. Elements aren't discovered or created in order of atomic number. Scientists are working on creating and verifying elements 119 and 120, which will change the appearance of the table, though they were working on element 120 before element 119. Most likely, element 119 will be positioned directly below francium and element 120 directly below radium. Chemists may create much heavier elements that may be more stable because of the special properties of certain combinations of proton and neutron numbers.

Although you might expect atoms of an element to get larger as their atomic number increases, this does not always occur because the size of an atom is determined by the diameter of its electron shell. In fact, element atoms usually decrease in size as you move from left to right across a row.

The main difference between the modern periodic table and Mendeleev's periodic table is that Mendeleev's table arranged the elements in order of increasing atomic weight, while the modern table orders the elements by increasing atomic number. For the most part, the order of the elements is the same between both tables, though there are exceptions.

Answer:

They are pores surrounded by specialized parenchymatic cells, called guard cells. Stomata have two main functions, namely they allow for gas exchange acting as an entryway for carbon dioxide (CO2) and releasing the Oxygen (O2) that we breath. The other main function is regulating water movement through transpiration.

The stomata performs the function of absorbing and releasing gases in the process of photosynthesis.

It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy  through the process of cellular respiration.

Some of the energy which is converted  is stored in molecules of carbohydrates like sugar and starches  which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis  are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.

The process begins with proteins absorbing light energy  which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.

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Answer:

darker means more concentrated!!

the answer is d

Explanation:

EX:the more color you put in frosting the darker it gets

Answer:

The group given the sugar pills.

Explanation:

The control group is the ones given sugar pills because they did not get the experimental aspirin

Answer:

Explanation:

l hope it helps

Answer:

Explanation:

      sorta explained up there ^^

Answer:

D, a new substance formed

Explanation:

if Magnesium is shiny a flexible but turns to a white powder no longer shiny or flexible when burned, it turns to a new substance

Answer:

you can check with others I'm sorry I couldn't help tho

Answer:

nucles membrane

Explanation:

brick

Somes gases are considered molecules but not compounds because compounds are made up of atoms of different elements.

A molecule is made up of any two atoms together. A molecule consisting of atoms from various elements is referred to as a compound.

However, we can call all molecules compounds, but not all compounds molecules. Since hydrogen gas (H2) only contains one element, it is a molecule rather than a compound.

Two identical atoms can combine to form a molecule, as occurs when two oxygen atoms combine to form an oxygen molecule. All compounds, however, have two or more atoms of distinct kinds.

Example of molecules gases : Hydrogen gas (H2) Nitrogen gas (N2) Oxygen gas (O2) Chlorine gas (Cl2)

Example of compound gases : Ammonia NH3,

Methane CH4, Nitrous oxide N2O, Salt NaCl.

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Answer: Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.

Explaination: All compounds are molecules, but not all molecules are compounds. That is because a molecule can be made up of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule. However, all compounds are made up of two or more different types of atoms.

Answer:

qualitative data

and

quanitative data

Explanation:

hope this helps and PLZ brainliest thank you

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

Answer:

The visible colors from shortest to longest wavelength are: violet, blue, green, yellow, orange, and red. Ultraviolet radiation has a shorter wavelength than the visible violet light.

Answer:

Short wavelength

Explanation:

Answer:

you would be trapped in the gravitational pull of a black hole

Explanation:

there is a black hole in the center of the galacy

Answer:

the name for CaCO3 is Calcium Carbnate, and its relations with coral reefs is that the process for making said compuond happens within coral, and is considered the building block for coral reefs.

Explanation:

hope this helps!

Answer:Trade winds blowing in a curved manner

Explanation:Because i like the answer

Answer:

Global Tempurature is rising

Sea level is rising

Explanation:

This is evidence of climate change. Depending on where you live it could be different like in florida there was a drought.

Answer:

c

Explanation:

While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.

Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.

However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.

Answer: C

Explanation:

The landscape could be flooded. Houses and buildings may be restricted.

Answer:

i think it is d. to convert free nitrogen into usable nitrogen

Answer:

the answer is B

Explanation:

this is because viruses need to enter a host cell to start reproduce. they usually use your cell to create "virus making factories".

hope it helps

no problems

Answer:

a physical change

Explanation:

here's why a chemical change produces new chemical products in order for sugar and water to be a chemical change something new would need to resolve a chemical reaction would have to occur

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

Answer:

The terrarium model shows the many different aspects of life. The dirt shows the geosphere, which is the ground thaat the plant can grow in. The biosphere is represented by the plant growing, and the hydrosphere is the water that you use to water the plant, and the condensation that will gather on the lid. The atmosphere is the air inside the jar.

Explanation:

Each of the above show how the environment works.

Answer:

Organic includes the following.. Found naturally in. or produced by living things, contains carbon. Inorganic includes the following... Does not contain carbon, and doesn't come from living things.

Explanation:

I hope this helps love! Have a good day/evening <3

Answer:

Organic compounds

Organic compounds are usually insoluble in water.

These compounds mainly have carbon to hydrogen bonds.

Inorganic compounds

They are insoluble in a few organic solvents. And are soluble in water.

Here, the compounds lack carbon to hydrogen bonds.