HELP ASAP!!!! Use the steps from the experiment to complete this model explaining how the cabbage transferred genetic material from the parent to the offspring.

Answer:

ACID RAIN

Explanation:

duh

Answer: 57.C

Explanation: simple subtraction

Answer: the answer should be A the first one

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Answer:

Exhaust from cars, trucks, and buses releases nitrogen oxides and sulfur dioxide into the air. These can cause acid rain.

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Answer:

producers convery sunlight energy into fuel and consumers cannot

producers can make their own food energy and consumers cannot

Answer:

Element X has valency 2 while Y Valency 2, element Y has high tendency of gaining electrons for its stability thus the compound formed will be B

elements X is positively charged while Y will be negatively charged

The groups or the families in the periodic table are denoted by the vertical column. Element in group 2 and 7 forms compound with ions X²⁺ and Y⁻. Thus, option B is correct.

A group of the periodic table is also called a family that has the elements placed togther with the same number of the valence electron. Group II has two valence electrons and VII has seven valence electrons in the outer shells.

The two valence electrons of the atom can be donated easily compared to acquiring the six electrons to complete the octet and stability. Similarly, the seven valence electrons are hard to donate but can accept one electron to achieve satbility.

The group II element X will donate its two electrons to acquire a +2 charge, whereas group VII element Y will accept one electron and acquire a -1 charge.

Therefore, option B.  X²⁺ and Y⁻ presents the ions of the compound.

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Answer:

No, it's a galaxy

Explanation:

Answer: The nuclear symbol of an isotope indicates the number of protons and neutrons in an atom of the element. It does not indicate the number of electrons. The number of neutrons is not stated. Instead, you have to figure it out based on the number of protons or atomic number.

Explanation:

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Answer:

it becomes water of it liqud

Explanation:

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Answer:

D

Explanation:

Solvent is the material that is dissolving another material​. Thus, option D is correct.

A solvent is a substance that dissolves another substance to form a solution. The substance that is being dissolved is called the solute, and the substance that is doing the dissolving is called the solvent. The solute is usually present in a smaller amount than the solvent, and it is the solvent that determines the physical properties of the solution, such as its density, viscosity, and boiling point.

For example, when salt is dissolved in water, the salt is the solute and the water is the solvent. The water molecules surround the salt molecules and break them apart, so that the salt ions are free to move around in the solution. The solution is then a homogeneous mixture of salt ions and water molecules.

Thus, option D is correct.

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Answer:

The convection zone :)

Answer:c

Explanation:

Answer:

mass an volume or hardines be density

Answer:

Free electrons

Explanation:

Graphite conducts heat in a similar way to metals because it contains free electrons.

Conductivity is arised from the delocalization of free electrons. Metals are electron rich and conduct thermally and electrically. Graphite conducts heat in a similar way because it contain delocalized electrons.

Graphite is an allotrope of carbon as diamond and fullerenes. Graphite exhibits a  layered  helical structures in which the carbon atoms are arranged in a hexagonal fashion.

Substances conduct electricity and heat when they are rich in electrons and are mobile to pass through it. Metals are electropositive and they contains extra electrons which can be delocalized between orbitals or energy levels.

This delocalization of electrons results in an a thermal or electrical current in the substance. Carbon is in sp2 hybridisation in graphite. Where, the electrons can transit from one layer to the other in the layered structure.

Therefore, the presence of delocalized electrons make graphite conducting.

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Answer:

its aragon , so letter b is right

Explanation:

Answer:

activity series is a list of substances ranked in order of relative reactivity.

For example, magnesium metal can displace hydrogen ions from solution. So magnesium is more reactive than hydrogen:

Mg(s) + 2H⁺(aq) → H₂(g) + Mg²⁺(aq)

Zinc metal can also displace hydrogen ions from solution:

Zn(s) + 2H⁺(aq) → H₂(g) + Zn²⁺(aq)

so zinc is also more active than hydrogen.

But magnesium metal can displace zinc ions from solution:

Mg(s) + Zn²⁺(aq) → Zn(s) + Mg²⁺(aq)

so magnesium is more active than zinc.

The activity series including these elements would be Mg > Zn > H.

Chemists have built up a complete activity series in a similar way.

The most active metals are at the top of the table; the least active are at the bottom.

Any metal that is higher in the series will displace a metal that is below it in a

The knowledge of the activity series in choosing which metal to build things with because; it provides a basis for determining which metal ion is able to displace the other upon chemical interaction.

The choice of building material is a very important design consideration.

This variation is carefully quantified by the position of metals on the activity series.

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Answer:circular heliocentric orbits.

Explanation:

Answer:

Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents.

glycogen is a substance deposited in bodily tissues as a store of carbohydrates. It is a polysaccharide which forms glucose on hydrolysis.

Cellulose is a molecule, consisting of hundreds and sometimes even thousands of carbon, hydrogen and oxygen atoms.

Answer: Oxygen, Water and Trees

Explanation: No other planet in the solar system has an atmosphere of oxygen or liquid water or trees on them.

Answer:

Explanation:

Answer:

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Explanation:

Compression vs Tension

Tension and compression are two concepts discussed in physics. Tension is a force, while compression is a phenomenon. Both these concepts play important parts in fields such as mechanical systems, automobile engineering, heat engines, material science, pendulums and various other fields. It is vital to have a proper understanding in tension and compression in order to excel in such fields. In this article, we are going to discuss what compression and tension are, their definitions, applications of compression and tension, the similarities between compression and tension and finally, the difference between compression and tension.

Answer:

As you can see sodium = ionic and covalent bonds aka NA 2

and CO 3 also has those two bonds the other answers dont have both numbers (bonds) Na2 and CO3 is the only answer choice that has these bonds in simpler terms ( only answer with 2 numbers)

Explanation:

Answer: good

Explanation:

 tyuk

answer:

B

Why:

Because when heated up, the particles vibrate from the heat and keep on vibrating.

at point b of the diagram, the energy is gone to breaking bonds of the (let's assume) solid.

So there is no change in temperature.

I hope this helps please let me know if you need me to explain more.

When temperature is changing with respect to the time in the given graph, then substance B was undergoing a change of state.

When any substance converts from one form of matter to the other form, then this phenomenon is known as change of state.

In the given figure a graph represents the change in temperature of substances A, B, C and D with respect to the time. Temperature of the substances A, C & D keep continuous changing with respect to the time. But substance B shows change in state because it absorbs the heat to convert in another state by breaking old bonds and making new bonds and showing showing no change in temperature.

Hence, substance B was undergoing a change of state.

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Answer:

D po

Explanation:

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Answer:

Lithium has 1 valence electron, Sulfur has 6

A is oxidized, B is reduced

A is reducing agent, B is oxidizing agent

Explanation:

when an atom loses electrons, it is oxidized

when an atom gains electrons, it is reduced (almost think of when you add a negative number to a positive number, the positive number gets smaller or is reduced)

Answer:

the Answer is

Explanation:

30 m east..

Answer: 30m/s east.

Explanation:

Velocity must have both a magnitude(speed) and direction.