Sodium is a very highly reactive metal that does not occur in free state in nature.
Sodium is a group 1 element. It has a very negative electrode potential which implies that it is highly reactive. Being a highly reactive element, sodium can not occur in free state in nature. It always occurs in combined form as compounds.
Hence, it is impossible to pick up sodium from any secret river in the mountains. Sodium metal is highly reactive hence it has to be stored under paraffin oil. The whole set up is indeed a scam.
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Answer:
Explanation:
The reason this is a scam is because they are selling sodium and to sell this product you must have a licence to do so. And secondly, you cant tell the reader that it is from a secret river and sell them a product that reacts when it touches water.
Answer:
1.88 x 10^5
Explanation:
You have to round because all of the numbers in 187515.4207 are significant
Round to: 188000
Put in scientific notation:
1.88 x 10^5
Answer:
well scientific notation would be = 1.875154207 × 10^5
you cant rlly simply the number any further to get 3 sig figs
youd need something like 187 to be 3 sig figs
are you saying the question correctly?
3. Use your knowledge of collision theory to explain the results of your experiments in this laboratory.
Thestable form of salt at standard temperature and pressure is solid. If you addwater to salt, it will dissolve. However, there are certain factors that affectthe rate of solution formation of salt. The rate of formation of salt solutionis faster when the vial is agitated than when it is not agitated. By agitatingthe solution, you are increasing the surface area of the salt particles incontact with water.
Answer:
answer for number 2
Explanation:
By increasing the temperature of the solvent, the movement of molecules sped up resulting in the more movement of particles and they bump into each other more vigorously. As a result of that, the particles of the solute break faster and dissolve in the solvent faster .
B. Thermometer
C. Barometer
D. Hygrometer
The answer is C. Barometer
the given element is
¹³⁰₅₅Cs
the superscript - 130 is the atomic mass / mass number
mass number is the sum of protons and neutrons
subscript - 55 is the atomic number
atomic number is the number of protons
therefore we can write the following equations
protons = 55
protons + neutrons = 130
so neutrons = 130 - protons
nuetrons = 130 - 55 = 75
number of neutrons = 75