Who re-introduces Democritus' theory of atoms back into modern science in the 1800's?
Answers
Answer:
John Dalton with his atomic theory reintrodcued the theroy of atoms
Explanation:
Around 450 B.C., the Greek philosopher Democritus introduced the idea of the atom. However, the idea was essentially forgotten for more than 2000 years. In 1800, John Dalton re-introduced the atom. He provided evidence for atoms and developed atomic theory
Explanation:
Related Questions
A food scientist is determined to create a mango that looks exactly like a mango but tastes like salmon. Can this be achieved through artificial selection? Why or why not?
Answers
What is an aquifer. e
Answers
Wikipedia › wiki › Aquifer
I hope this helps
Fish are invertebrates, and all animals are equal so does this mean that each individual animal is equivalent?
A. no
B.yes
C.kinda.
D.none of the above
Answers
Answer:no
Explanation:
because there are different bone structures to different animals
ex.mammals aren't invertabres
Answer:
A. no
Explanation:
The other person is right.
In the 1800s, independence for many South American countries meant the end of what?
A
political challenges
B
military dictatorship
C
colonial authority
D
international trade
Answers
Answer is colonial authority
In the 1800s, many South American countries underwent a process of achieving independence from their colonial rulers. Prior to that, these countries were under the control of European powers such as Spain and Portugal, which established colonial authority and exerted political and economic control over the territories.
The end of colonial authority refers to the period when South American countries gained their independence and were no longer subject to direct colonial rule. This marked a significant shift in power and governance, as these countries were able to establish their own political systems and assert their sovereignty.
With the end of colonial authority, South American countries were able to determine their own political futures and establish their own governments. This allowed them to address political challenges specific to their regions, develop their own political systems, and shape their own destinies.
Hence, the correct option is option c
Learn more about colonial rule here:
https://brainly.com/question/3207904
#SPJ 2
Please Help will mark brainliest
1._____ rocks contain a variety of different rock particles that are cemented together.
2._____ rocks are formed when rocks are changed by heat and pressure.
3. When volcanoes erupt,_____ rocks are typically formed.
Answer choices
1. igneous, sedimentary, metamorphic
2. igneous, sedimentary, metamorphic
3. igneous, sedimentary, metamorphic
Answers
1. sedimentary
2. metamorphic
3. igneous
hope this helps and have a wonderful day :)
Answer:
igneous
Explanation:
Explain the relationship between work, energy and power
Answers
Answer:
Force exerted on an object over a distance does work. Work can increase energy, and energy can do work. Power is the rate at which work is done.
Explanation:
Which of the following would have the MOST thermal energy
cup of hot soup
mug of warm coffee
bowl of cold soup
bathtub full of warm water
Answers
Can someone please help me with this question? Thanks in advance.
Answers
Answer:
1. Fe + H2SO4 = FeSO4 + H2
iron + sulfuric acid = duretter + hydrogen
2. Mg + 2 HNO3 = Mg(NO3)2 + H2
Magnesium + nitric acid = magnesium nitrate +hydrogen
3. Zn + 2 HCl = ZnCl2 + H2
Zinc + hydrogen chloride= zinc chloride+ hydrogen
Ricardo and Maria conducted an experiment to test if the mass of a ball affects how fast it would roll down a ramp. They set up the experiment using a ramp and three balls of different masses. They tested each ball once and recorded their results. They concluded that the more mass a ball has, the faster it will roll down the ramp. Why is this experiment not reliable?
Their experiment was not controlled.
Their experiment did not test enough variables.
Their experiment was not performed multiple times.
Their experiment was not performed by multiple people.
Answers
Photosynthesis begins when chlorophyll molecules in the plant absorb light energy from the sun. Along with sunlight, CARBON DIOXIDE (CO2)/OXYGEN (O2) and HYDROGEN (H)/WATER (H2O) are also taken in by the plant. Light energy from the sun FUSES/SPLITS water molecules (H2O) into hydrogen (H) atoms and oxygen (O) atoms. Pairs of oxygen atoms combine to form oxygen gas (O2). The oxygen gas (O2) leaves the plant as a WASTE/SUGAR product. The carbon dioxide (CO2) and hydrogen (H) molecules are made into WASTE/SUGARS, which are used by the plant to make energy. Also during this process, light energy from the sun transforms into THERMAL/CHEMICAL energy that is stored in sugars.
Answers
Answer:
The digramatic representation is above
Answer:
I don't see any questions, all I see is a description on Photosynthesis.
Explanation:
Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
Answers
Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
A balance and a graduated cylinder are used to determine the density of a mineral sample. The sample has a mass of 16 g and a volume of 2 cm3. What is the density of the mineral sample?
Answers
Answer:
8g/cm³
Explanation:
density is mass per unit volume , it is measured in grams per unit volume
It takes a car 1.5 hours to go 90 miles.
What is the average speed of the car in miles per hour (mph).
Answers
Answer:
60 mph
Explanation:
if you do 90÷1.5 you get 60 so thats the average speed
so what you have to do is multiply but one more thing to help you remember is ask for help
This simulation contains rock layers and fossils from several different locations. Arrange the rock layers in the correct order, from the oldest at the bottom to the youngest at the top. Once a fossil disappears, it’s gone from the fossil record and does not reappear.
ill give brainlist if your answer is correct.
Answers
Answer:
The arrangement of fossil in the earth helps one understand the age of the rock.
Explanation:
To arrange the rock layers correctly, begin with the oldest layer at the bottom and proceed to work chronologically up.
The rock strata and fossils in this simulation provide information about the Earth's geological history. The theory of superposition helps us explain why the oldest rock layers are at the bottom and the youngest layers are at the top. We can establish the relative ages of the rocks by studying the fossils within each stratum. Fossils from earlier strata are no longer detected as new layers form, indicating that they have vanished from the fossil record and will not resurface. We can learn about the properties of the rock strata and the fossils they contain by carefully investigating their characteristics. We can reconstruct the timeline of Earth's geological past, understanding the changes that occurred over time.
need a answers right away
What conditions are needed for germination? (2 points)
a
Air, water, and warmth
b
Cold air, water, and soil
c
Water, warmth, and a good location
d
Warmth, water, and wind
Answers
Answer: A
Explanation:
To germinate, seeds require the right combination of temperature, oxygen, and water. Some seeds also need the right kind of light. Some seeds grow more effectively in direct sunlight, while others need shade to grow.
Friction is a force that opposes motion. When friction is present, heat is generated.
According to the law of conservation of energy, which of the following statements is true about the energy associated with friction?
a. Energy is destroyed by the force of friction.
b. Energy is created with friction.
c. Some of the energy is converted into thermal energy.
d. Most of the energy is transformed into chemical energy.
Answers
Answer:
I think it is: Some of the energy is converted into thermal energy.
Explanation:
Please let me know if I am wrong so I can fix it :)
To solve this , we must know the concept behind law of conservation of energy. Therefore, the correct option is option C that is Some of the energy is converted into thermal energy.
What is aw of conservation of energy?Energy cannot be generated or destroyed, but it may move from one form to another, according to the physical rule of conservation of energy. The total energy of an isolated system remains constant or is conserved within a certain frame of reference.
Friction is a force that opposes motion. When friction is present, heat is generated. According to the law of conservation of energy, the statements that is true about the energy associated with friction is Some of the energy is converted into thermal energy.
Therefore, the correct option is option C that is Some of the energy is converted into thermal energy.
To know more about law of conservation of energy, here:
https://brainly.com/question/12050604
#SPJ2
I'LL GIVE BRAINLIEST TO THE BEST ANSWER!!!!
Scenario:
Espresso Coffee Houses is designing a coffee mug that keeps liquids hot. The research department tested several different materials for their ability to keep a normal-sized cup of coffee hot the longest amount of time. The testing room temperature is approximately 25 degrees Celsius.
Prompt:
Write a scientific explanation to justify the selection of material, A, B, or C, used to create the cup that would keep the coffee the hottest for the longest period of time. (THIS IS YOUR CLAIM.)
What is your evidence (for the claim)?
What is your reasoning?
Answers
Answer:
So whats the question
Explanation:
Quartz, or silicon dioxide (SiO2), is one of the most abundant minerals on Earth. The diagram shows the atomic arrangement of quartz.
Based on the diagram, which statement best describes the atomic arrangement of quartz?
Group of answer choices
An extended structure that is made of repeating patterns of atoms.
A repeating pattern of small molecules that can move freely past each other
Many different kinds of molecules tha combine to form an extended structure.
Many different kinds of atoms that can move freely past each other.
Answers
Based on the atomic arrangement of quartz, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
What is quartz?Quartz is a hard crystalline mineral found within the Earth's crust and which is composed mainly of the mineral silica. Silica is mostly silicon(iv) oxide.
Quartz is colourless and its crystalline structure is of a hexagonal prism. The atoms are arranged in a regular repeating grid to form the hexagonal crystal.
Therefore, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
Learn more about quartz at: https://brainly.com/question/2284988
Please draw a diagram of how a magnetic field works around a magnet. Please label.
Answers
Mark me Brainly
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Reproduction is the function of _______ and organisms.
Answers
Answer:
Reproduction is the function of process by which organisms replicate themselves. In a general sense reproduction is one of the most important concepts in biology: it means making a copy, a likeness, and thereby providing for the continued existence of species.
Have a great day friend! :D
What is a disadvantage for organisms that reproduce asexually rather than sexually?
Responses
The offspring receive less genetic material.
The offspring receive less genetic material.
The offspring take more time to grow and develop.
The offspring take more time to grow and develop.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Answers
Answer:
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Explanation:
If there was a disease (as an example) that negatively effected both organisms that reproduce asexually and sexually, the organisms that reproduce asexually would have a disadvantage. Offspring of the organisms that reproduce sexually contain the genetic material of both parents. This would lead to a higher chance of the ability to adapt to any changes, or even a chance of being immune to that disease. However, offspring of the organisms that reproduce asexually are only replicates of the parent. This means that the asexually produced offspring and the parent organism could be harmed more than the sexually produced offspring and parent organism. The organism would have reduced abilities to adapt according to the changes in the enviroment.
The major disadvantage for organisms that reproduce asexually is option 4 that the offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Asexual reproduction is a type of reproduction where only a single parent is involved in creating offspring. The offspring reproduced are genetically identical to the parent. while this form of reproduction has many advantages including rapid and quick reproduction, it posses some major drawbacks as well.
As the genetic diversity is absent in asexual reproduction, adapting and surviving in the dynamic environment is tough for the offspring. Difficulty in catching up with the changing circumstances can sometimes lead to harm to upcoming species.
To know more about asexual reproduction:
https://brainly.com/question/4100787
What is the name given to this group of elements?
a.
halogens
c.
transition metals
b.
alkali metals
d.
noble gases
Answers
Answer: The answer is A. Halogens
Explanation:
I hope this helps you :)
The polyatomic nitrate ion (NO3−) is present in both the products and the reactants of the chemical equation shown below.
Ba(NO3)2 + 2LiOH → Ba(OH)2 + 2LiNO3
How many nitrate ions are in the products and the reactants of the chemical equation?
Answers
Answer:
Explanation: Two in reactants and two in products.
In a reaction of yeast and hydrogen peroxide, the yeast causes a reaction in which the hydrogen peroxide breaks apart to form oxygen gas and water. Heat is released (given off) in this experiment, which would indicate a(n) ____________________ reaction.
A) equilibrium
B) endothermic
C) physical reaction
D) exothermic
Answers
Answer:
D, exothermic reaction
Answer: it indicates exothermic reaction
Explanation:
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
help please help help
Answers
Answer:
for question 8 the answer is a waste material
Answer:
1) Photosynthesis takes place in plants leaves.
2) Air containing carbon dioxide moves into plants leaves through tiny openings in the leaves.
3) Soil contains the water a plant needs for making food
Explanation:
In the food web below, what is one example of an omnivore?
a food web with berry bush, mouse, cricket, squirrel, rabbit, frog, fox, owl, snake
cricket
squirrel
mouse
fox
Answers
I’m not too sure because most of these are omnivores so I think I would go for mouse or fox
pls help por favor i dont understand
Answers
Answer:
It's C!
Explanation:
when the amplitude was doubled the energy went up 4x
Did it already
is this loki on fairy tail because with blond hair and with glasses or without glasses (he has no glasses anymore)
Answers
Answer:
yes it is
Explanation
grey vs natsu