Since 1mL=1cm^3 the wood would sink due to it being more dense. I.e. 0.95>0.88
Answer:
It takes 1.9
years to distribute all the grains.
Explanation:
In one second,
grains of wheat are distributed.
We are supposed to find the time it would take to Distribute Avogadro number of grains.
1 avogadro number = 6.022 ![\times 10^{23}](https://tex.z-dn.net/?f=%5Ctimes%2010%5E%7B23%7D)
Number of grains distributed in 1 day = 86400
= 8.64 ![\times 10^{14}](https://tex.z-dn.net/?f=%5Ctimes%2010%5E%7B14%7D)
Number of grains distributed in 1 year= 8.64 ![\times 10^{14} \times 365](https://tex.z-dn.net/?f=%5Ctimes%2010%5E%7B14%7D%20%5Ctimes%20365)
= 3.1536 ![\times 10^{17}](https://tex.z-dn.net/?f=%5Ctimes%2010%5E%7B17%7D)
Time taken = ![\frac{Number of grains to be distributed}{grains distributed in 1 year}](https://tex.z-dn.net/?f=%5Cfrac%7BNumber%20of%20grains%20to%20be%20distributed%7D%7Bgrains%20distributed%20in%201%20year%7D)
= ![\frac {6.022 \times 10^{23}}{3.1536\times 10^{17}}](https://tex.z-dn.net/?f=%5Cfrac%20%7B6.022%20%5Ctimes%2010%5E%7B23%7D%7D%7B3.1536%5Ctimes%2010%5E%7B17%7D%7D)
= 1.9 ![\times 10^{6}](https://tex.z-dn.net/?f=%5Ctimes%2010%5E%7B6%7D)
Answer is: <span>the charge of the iron in this compound is +2.
Atomic mass of iron is 55,8 g/mol.
Atomic mass of chlorine is 35,5 g/mol.
If compound is FeCl, molar mass would be 55,8 </span>g/mol + 35,5 g/mol = 91,3 g/mo, that is not correct.
If compound is FeCl₂, malar mass of compound would be:
55,8 g/mol + 2·35,5 g/mol = 126,8 g/mol, that is correct.
Oxaidation number of chlorine is -1.
The characteristics of wave are amplitude, speed , frequency and wavelength.
<u>Explanation:</u>
Amplitude is defined as the distance covered by the particles or molecules moving in a wave nature. So the maximum positive and negative peak position is termed as amplitude of the wave.
Every wave forms a series of crests and trough regions. The crest region is the positive amplitude while the trough region is the negative amplitude. The distance between two successive crests and troughs are termed as wavelength.
A single crest and trough forms a complete cycle. So the number of times a cycle is repeated for a given time is known as frequency. Speed is defined as the product of frequency and wavelength of the wave. In other words, speed of a wave is the rate at which the particles are moving a given area per unit time.
Which statement describes how the binary ionic compound KBr is named? The metal is named first, and the name is unchanged. Which of these is a property of a substance that is composed of atoms that are held together by ionic bonds?