Air bags, which act as safety devices in cars, contain solid sodium azide. On impact, the sodium azide releasesnitrogen gas, which expands the air bag. The main benefit of using a gas instead of another type is that —
A. gas molecules are subject to ionic bonding
B. the separation of gas molecules is much greater than the volume they occupy
C. gases won’t explode the bag on very hot days
D. gas molecules don’t transfer excess Kinetic Energy

Answers

Answer 1

Answer:

The answer is; D

The reason for this is because gases are compressible . Much of the energy of the impact created when your head hits the air bad is absorbed by the gas (through compression and rarefaction) hence reducing the damage to the head in case of an accident.

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Enter the the ksp expression for the solid ab2 in terms of the molar solubility x.
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In an exothermic reaction, an increase in temperature favors the formation of products. a. True b. False?

as a result of the gold foil experiment it was concluded that an atom (1) contains protons, neutrons, and electrons(2)contains a small, dense nucleus(3)has positrons and orbitals (4)is a hard and invisible sphere

Answers

It showed that the atom contains a small dense nucleus. The reason why this can be concluded is that the experiment showed that alpha particles can for the most part pass right through the foil. This showed that the nucleus of the atom is very small and takes up a very small portion of the size of an atom since the nucleus is what would reflect the alpha particle. If atoms were not mostly empty space, the alpha particles would have been bounced back and the opposite of what was observed would have happened (all or at least the majority would be bounced back instead the majority getting through with only a small portion being reflected back).

I hope this helps. Let me know in the comments if anything is unclear.

Final answer:

The gold foil experiment, conducted by Ernest Rutherford, discovered the existence of a small, dense nucleus within an atom, making answer (2) the correct one.

Explanation:

The gold foil experiment was conducted by Ernest Rutherford and led to the discovery of a small, dense nucleus within the atom. This means that the correct answer to your question is (2) contains a small, dense nucleus. Prior to this experiment, the widely accepted model was the 'plum pudding' model, which had negatively charged electrons embedded within a positively charged sphere. The gold foil experiment upended this model as it was discovered that most alpha particles passed through the gold foil undeterred, but a small fraction was deflected at large angles, suggesting that a tiny but dense packet of positive charge — identified as the nucleus — existed in the center of the atom. This discovery led to the formation of the Rutherford atomic model.

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What is the electron configuration of a sulfur atom in the ground state?(1) 2–4 (3) 2–8–4(2) 2–6 (4) 2–8–6

Answers

The sulfur atom has 16 electrons. The electronic configuration of sulfur is 2, 8, 6.

Sulfur has been the bright yellow, crystalline nonmetal. It has been present in abundance in nature. The sulfur has been used in the gunpowder, as well as fungicide, and in the vulcanization of black rubber,

The electronicconfiguration has been the filling up of electrons of an element in the atomic shells.

The order for filling the shells involves the 2,8,8,14, and so on.

The sulfur has the atomic number 16. It states that it has 16 electrons in the atom.

The electronic configuration of sulfur is as follows:

2,8,6.

The sulfur atom has 16 electrons. The electronic configuration of sulfur is 2, 8, 6.

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Sulphur in the ground state possess 16 electrons that span three shells. The electronic configuration in this case is 2-8-6 (OPTION 4)

Write the balanced equation for the reaction that occurs when methanol, CH3OH (I) is burned in air. What is the coefficient of methanol in the balanced equation? (A) 1 (B) 3 (C) 2 (D) 4 (E) 3/2

Answers

Answer:

Explanation:

Methanol is an organic compound which burns with oxygen to produce carbon dioxide and water.

$2CH_3OH_((l))+3O_2_((g))\rightarrow 2CO_2_((g))+4H_2O_((g))$

Multiply coefficients times subscripts for each element in the formula, We get that there are 2 number of atoms of the carbon, 8 number of atoms of the hydrogen, and 8 number of atoms of the oxygen on both sides of equation. Hence, it is balanced.

The coefficient of methanol from the balanced reaction is 2.

What happens to a water bottle in a freezer and why

Answers

the water well begin to freeze and turn into soild. why? because the temperature of the the freezer is getting the water bottle cold so when that cold temperature hits that that bottle which has liquid in it so you should know that when liquid is into cold air it well so be soild so when you put the water bottle in the freezer it will be soild.
and also remember gas - liquid - soild gas change to liquid by hot air and liuid change to soild by clod air
hoped i helped

The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1 mc032-1.jpg 106 microliters (mL) in 1 L. What is the volume of this pond in microliters?

Answers

The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1 x 10^6 microliters (mL) in 1 L.

35 kL (1,000 L/ 1kL) (1 x 10^6 microliters / 1 L) = 3.5 x 10^10 microliters

The volume of this pond in microliters is 3.5 x 10^10 microliters

Which is a cause of polarity in water molecules? partial negative charge on the hydrogen atoms partial positive charge on the oxygen atom high electronegativity difference between oxygen and hydrogen low electronegativity difference between oxygen and hydrogen

Answers

Answer:

high electronegativity difference between oxygen and hydrogen

Explanation:

Final answer:

Water molecules become polar due to the difference in electronegativity between the oxygen and hydrogen atoms. This leads to the development of partial positive charges on the hydrogen atoms and a partial negative charge on the oxygen atom. These polar bonds allow for the formation of hydrogen bonds with other molecules.

Explanation:

Water is a polar molecule, with the hydrogen atoms acquiring a partial positive charge and the oxygen a partial negative charge. This occurs because the nucleus of the oxygen atom is more attractive to the electrons of the hydrogen atoms than the hydrogen nucleus is to the oxygen's electrons. Thus oxygen has a higher electronegativity than hydrogen and the shared electrons spend more time in the vicinity of the oxygen nucleus than they do near the nucleus of the hydrogen atoms, giving the atoms of oxygen and hydrogen slightly negative and positive charges, respectively. Another way of stating this is that the probability of finding a shared electron near an oxygen nucleus is more likely than finding it near a hydrogen nucleus. Either way, the atom's relative electronegativity contributes to the development of partial charges whenever one element is significantly more electronegative than the other, and the charges generated by these polar bonds may then be used for the formation of hydrogen bonds based on the attraction of opposite partial charges. (Hydrogen bonds, which are discussed in detail below, are weak bonds between slightly positively charged hydrogen atoms to slightly negatively charged atoms in other molecules.) Since macromolecules often have atoms within them that differ in electronegativity, polar bonds are often present in organic molecules.

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