Explain how the presence of copper atoms can produce an alloy stronger than pure gold

Answer:

Fossils have shown that there were trees and other plants in areas of the earth

The statement "The variety of species on earth today is greater than before" is false. Therefore, option D is the false statement.

Fossils have shown that there were trees and other plants in areas of the earth, and plants were of great size in comparison to today. Records also show that there were large animals, like mammoths and dinosaurs, that lived on Earth before the flood.

However, there is no scientific evidence to support the claim that the variety of species on Earth today is greater than before the flood.

In fact, the fossil record suggests that there were many species of plants and animals that existed in the past that are now extinct, meaning that the overall variety of life on Earth may have been greater in the past. Therefore, the statement in option D is false about the effect of flood on the plants and animals in that era.

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Answer:

Picture

Explanation:

Chemistry-

Answer:

wool, silk, cellulose, DNA and proteins.

Explanation:

Some examples of naturally occurring polymers are wool, silk, cellulose, DNA and proteins.

Answer:

Rising temperatures, facilitated by CO2 concentrations in the atmosphere, are also warming the globe leading to the melting of ice and glaciers. The ultimate effect of these climatic conditions is the contamination of water sources – both surface and groundwater.

a body of water could cause flooding, or dieases

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:

one atom, one atom.

Explanation:

Sodium chloride is made from one sodium atom and one chlorine atom.

Sodium has a charge of +1,  Chlorine has a charge of -1. These cancel each other out leaving only one atom for both sodium and chlorine.

Answer:

A. with.

Explanation:

Answer:

1. 2 valence electrons 2. 1 valence electron

Explanation:

valence shell is the elctrons present on the outer most shell

Answer:Carbon-14 dating is  second column tho

Explanation:So i remember doing this in 5th grade at my school so if u send me ur email i. can try send you my labs i hate doing them.

Answer:

Option (D) A Generator

Explanation:

A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.

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Answer:

Explanation:

Space exploration technology has helped us explore the Moon and see images of far off galaxies.

Space technology may help us inhabit another planet or live in space in the future.

These are the correct statements

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.

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer: the answer is b or c

Explanation:

I took it

Answer:

whats the question??? I am familiar with brainpop but if u tell me the question ill give u the asnwer

Explanation:

Answer:

Explanation:

A group of atoms bonded together and the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. They are made up of atoms that are held together by chemical bonds. These bonds exchange electrons among atoms.

A molecule is just a group of two or more atoms bunched together.

Answer:

Rubber, or another insulator.

Explanation:

I'm not sure what the options are, but Sue would probably want an insulator so that the heat is trapped, keeping her hands cool.

Answer:

For each molecule of glucose produced: 6 water water molecules are oxidized, and become the source of electrons for carbon dioxide reduction. 6 molecules of carbon dioxide are required, one for each carbon atom in glucose. 6 molecules of oxygen are produced as a by product of water oxidation

Explanation:

Look it up

Answer:

No because there is not enough Potential Energy at Point 1 to make it all the way through point 5.

Explanation:

Answer:

So first its common sense lol. So of course it would be enough Potential energy to go up excample like a bow-n-Arrow it goess up then down because of Gravity!!!!

Hope this hellped even though someone else said the same answer XD

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.

yes its true

as from both parents only one type of allele is passed i.e T

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.

Answer:

hold on i will help you soon

The period of time when sexual intercourse takes place between two organisms is called mating. However, all the matings need not end in fertilization.

The gestation period is a time when the embryo develops completely into a fetus. This is usually from the time of fertilization to the time of giving birth.

Let us take the comparison of the gestation period of 3 mammals.

The gestation period of a cow varies from 279- 287 days. The mating between the bull and cow occurs during the heat or oestrus period of the cow. At that time the bull mounts on the cow or vice-versa may happen during the mating period. This is termed bulling.

In the case of horses, the gestation period is 320-380days. The mating ritual in a horse is a bit different than in a cow. It usually has three phases of sexual behavior which includes: courtship, mating, and post mating behavior. During courtship, the stallion which is the male horse will approach the mare, prance, sniff her, nuzzle her, and groom her. The mare which is the female horse may squeal, kick, or move away to show the stallion that she is not ready. When the mare is receptive to breeding, she may stand still, deviate her tail, and urinate, leading the stallion to mount her. It usually breeds well in pastures than in controlled environmental breeding conditions.

Whereas in camels, the gestation period is far longer than in cows and horses. It is about 360-440days. The male camel displays its organ called a dulla to show out is ready for mating. The male camel Urinates on its own tail and swishes it over its back so that the Urine contains female-attracting pheromones. It shows distinct violent behavior towards other male camels. The female camel undergoes an estrous cycle in the breeding season which lasts receptive for 3-4 days, and non-receptive following the other 10 days. In the receptive period, the camel sits down and exposes its genitalia for the male camel to copulate. The whole mating takes about 20 minutes and is accompanied by gurgling and frothing by the male and bleating by the females.

It should be noted that African elephants have longer gestation periods like Asian elephants whereas no other animal has a longer gestation period than an elephant or a shorter gestation period than mice.

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Answer:

No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.

Answer:

Going off of our own galaxy, one could assume that the universe is filled with other planets, moons, and stars. The interesting thing to me would be the shape of the Milky Way. It would be interesting to see how other galaxies have formed. As in, are they spherical, oblong, in the shape of a square?

There are also endless possibilities for undiscovered metal alloys in space, which is very exciting to me. The idea of space mining has been brought up many times before, but if there are new and useful metals, precious gems, or minerals that are yet to be discovered outside of the milky way, they could help restore Earth.

Answer:Trade winds blowing in a curved manner

Explanation:Because i like the answer

Answer: The statement that correctly compares the masses of subatomic particles in an atom such as carbon is "The mass of a neutron is slightly larger than the mass of a proton, and the mass of an electron is much smaller than that of a proton or neutron." This is because an atom such as carbon is composed of protons, neutrons, and electrons. Protons and neutrons are approximately the same mass and are much more massive than electrons. Therefore, the mass of a neutron is slightly larger than the mass of a proton, and the mass of an electron is much smaller than that of a proton or neutron.

Explanation:

Answer:

C

Explanation:

PROTON AND NEUTRON HAVE SAME MASS . WHILE PROTON HAS APPROXIMATELY 1869 TIMES MORE MASS THAN ELECTRON