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Evgesh-ka [11]
2 years ago
15

Pls help nowwJust want to see who's the smartest herepromise to tag u as brainliest​

Chemistry
1 answer:
sveta [45]2 years ago
4 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

1. The equation representing the equation is ~

\mathrm{Na + Cl\rightarrow NaCl}

The given reaction is a <u>redox reaction</u> because there's a <u>transfer of electron</u> from <u>Sodium</u> (Na) to <u>chlorine</u> (Cl)

where sodium is <u>oxidized</u> (due to loss of electron) and chlorine get <u>reduced</u> (due to gain of electron).

2. <u>Sodium</u> is a <u>highly reactive</u> element which belongs to the 1st group of periodic table, hence it can catch fire if it is kept free in atmosphere. so in order to prevent that it is stored in <u>kerosene</u> oil, which doesn't let Sodium come in contact with air .

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Put these different types of radiation in order from MOST to LEAST penetrating.
Naily [24]

Answer:

C. Gamma > beta > alpha

Explanation:

<u>Alpha rays</u> : These are positively charged  and have mass 4u. These contain high energy Helium nucleus with 2 proton and 2 neutron.

These are heavier and maximum charged than beta and gamma particles.They have low velocity,least penetration power (can't travel more than 10-18 cm).

<u>Beta rays</u> : They are negatively charged and have negligible mass.

On emmission of beta particle, neutron is divided into proton and electron. They have less mass and very high velocity, so their penetrating power is more than alpha particles.

<u>Gamma rays</u>: These are parts of electromagnetic spectrum and travel with the speed of light (maximum velocity).Gamma rays do not have mass have maximum penetrating power.

4 0
3 years ago
The conversion of mass into huge amounts of energy is the basis of __________.
pshichka [43]

Answer:

D

Explanation:

Nuclear binding energy curve. During the nuclear splitting or nuclear fusion, some of the mass of the nucleus gets converted into huge amounts of energy and thus this massis removed from the total mass of the original particles, and the mass is missing in the resulting nucleus.

4 0
3 years ago
Read 2 more answers
Which machine is the least simple? a bike a screw an inclined plane a lever
Ivenika [448]

Answer: A bike

A bike is composed of various simple machines. It has a wheel and axle as one component, and it also has screws to hold the various parts together, along with levers and pulleys that are connected to the pedals. So all of these simple machine concepts work together to help transport the rider from point A to point B.

The other answer choices of screw, inclined plane, and lever, are fairly simple machines that don't have many things going on at once compared to a bike.

4 0
3 years ago
Please help with this question
gogolik [260]
The straight horizontal line shows us that the object is moving at a constant speed
5 0
3 years ago
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An atom has atomic number 11 and mass number 23. How many electrons does the atom have?
Gre4nikov [31]

Answer:

11

Explanation:

the atomic number is the same as the number of electrons

8 0
3 years ago
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