draw molecular structure of Sodium oxide​

Answer:

plants

Explanation:

Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.

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Answer:

3 m/s

Explanation:

24 m/s over 8 seconds would be 24/8 making it be 3 m/s avg

Answer  the ratio of Be to At is 1:2 in the compound

Explanation:

Be in Periodic Table 2A has 2 valence electrons in its outer orbital and needs to give them away.  When it gets rid of 2 negatives, its charge is +2.

At in Periodic Table 7A has 7 valence electrons in it outer orbitals and needs one more electron.  2 AT atoms each accept one electron from Be and each has a charge of -1.  The Be ion of +2 charge is balanced by the two At ions of -1 charge, so the ratio of Be to At is 1:2

The situation in which the generator is able to produce more electricity is option D, the average height of each wave increases.

Water wave is a type of mechanical wave. Water wave is a transverse wave in which the oscillation of particles is along the direction of wave propagation.

The the water waves are highly energetic and this kinetic energy is converted to electric energy using turbines and generator. The height  to the crest of the wave from the base line is called amplitude. As the amplitude increases, energy of the wave is increasing.

Thus, more the amplitude, more the energy of wave leading to greater yield of electrical energy as well. Therefore, option D is correct.

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ozone gas found in the stratosphere protects Earth from high energy ultraviolet radiation.

Answer:

Explanation:

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Answer:

C Lowering the temperature

Explanation:

Answer:

The outer shells of non metal atoms gain electrons when they form ions this result in the formation of negative ions

Answer:

PVC is a versatile material that offers many possible applications, these include; window frames, drainage pipe, water service pipe, medical devices, blood storage bags, cable and wire insulation, resilient flooring, roofing membranes, stationary, automotive interiors and seat coverings, fashion and footwear, packaging .

Explanation:

Answer:

Let me know what you think about these answers.

Answer:

styrofoam would be 14°

metal would be 55°

paper would be 25°

plastic would be 28°

Explanation:

im pretty sure you just take the biggest number and subtract the smallest number. to get how much it has changed.

Answer:

La materia está constituida por átomos, que a su vez forman moléculas. Las moléculas constituyen la mínima parte en la que se puede fragmentar una sustancia para que conserve sus propiedades. Todo lo anterior permite que la materia se pueda presentar en estado sólido, líquido y gaseoso.

Explanation:

Answer:

11 moles

Explanation:

From the coefficients of the equation, we know that for every 3 moles of CuO consumed, 1 mole of nitrogen is produced.

So, the answer is 32/3 = 11 moles to 2 sf.

I and II are the functional isomers of each other. Hence option A is correct.

Isomer is defined as when multiple compounds with the same chemical formula but different chemical structures exist. A prefix that denotes the number of carbons is followed by the suffix -ane, which designates that the molecule is an alkane. By counting the chiral centers in a chemical, one can determine how many optical isomers exist. The formula 2n1, where n is the number of chiral centers, indicates the greatest number of optical isomers.

They are functional isomers because alcohol CH3CH2CH2OH and ether CH3CH2OCH3 contain different functional groups. Functional isomerism, which refers to isomers that differ in the functional group present in the carbon chain, is exemplified by H3-CH2OH and CH3-O-CH3.

Thus, I and II are the functional isomers of each other. Hence option A is correct.

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The correct answer is C

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Explanation:

In a normal heart, there is a balance between calcium and potassium ion levels in both the outer and inner walls of the heart. That balance keeps electrical energy flowing correctly through the heart, and allows the heart muscle to expand and contract as the heart beats.10-Nov-2005

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Taking into account the definition of reactivity, the correct option is the first option: Metals on the right have more valence energy levels, so the ability of the nucleus to attract electrons is reduced.

Reactivity is a measure of the probability that a chemical species will participate in a chemical reaction to form chemical bonds.

In other words, the reactivity of a chemical element is the tendency that this element has to combine with others.

For elements that behave like metals, this trend is directly related to the ease with which they lose their valence electrons.

Valence electrons are those electrons farthest from the nucleus of the atom. These electrons are easier to remove because they are the least attracted to the nucleus. Thus, less and less energy is needed to start these valence electrons, so they can commonly participate in the formation of chemical bonds.

In other words, as the size of the metal atoms in a group increases, so does their reactivity.

Then, the correct option is the first option: Metals on the right have more valence energy levels, so the ability of the nucleus to attract electrons is reduced.

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Answer:

5.1316 x10^2

Explanation:

just simply move the decimal point to the first number, and then count how many numbers are after the decimal point

Answer:

5.1316x10^2

Explanation:

move the decimal left until the number is 1-10(not including ten) and count how many places you moved for the exponent, in this case it’s 2

Answer:

It is true

Explanation:

Matter is anything that has mass and occupies safe.

Energy is the ability to cause change or do work,and some forms of energy include nuclear,heat, chemical,light, mechanical energy and electrical energy.

Answer:

Explanation:

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Answer:

Colligative properties are physical properties of solutions, like boiling point elevation and freezing point depression. In these calculations, the temperature of the solution is changing as we add more solute to the solvent, so this means that the volume of the solution is changing. Since molarity is moles solute per liter of solution, we cannot use molarity as our concentration unit. This is why we use molality (moles solute per kg of solvent) since the kg of solvent doesn't change with temperature.

Explanation:

First in boiling point elevation and freezing point depression, we deal with the system whose temperature is not constant.   Second we cannot express the concentration of the solution in mortality because it changes with temperature whereas mortality is temperature independent.  Therefore, while considering boiling point elevation and freezing point depression a solution concentration is expressed in mortality and not in mortality.

Answer:

Atom 1. The ratio of Atom 1 to the diagram one is 1/2. It is the most closely related. Feel free to mark brainliest!

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Answer:

could you explain the question further

Answer:

A substance is basic or alkaline if it's pH is greater than 7.0.

Answer:

u can search it

Explanation:

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Facultative anaerobes.

Organisms that grow in the absence of free oxygen are termed anaerobes; those that grow only in the absence of oxygen are obligate, or strict, anaerobes. Some species, called facultative anaerobes, are able to grow either with or without free oxygen.

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