Answer:
The strong force binds quarks together in clusters to make more-familiar subatomic particles, such as protons and neutrons. It also holds together the atomic nucleus and underlies interactions between all particles containing quarks. The strong force originates in a property known as colour.
Explanation:
Explanation:
Molecular formulas show correct and accurate number of each type of the atoms which are present in molecule.
On the other hand, structural formulas show arrangement of atoms and covalent bonds between them.
For example,
The molecular formula for carbon dioxide is 
The structural formula is O = C = O
Continent drifts
Explanation:
The use of fossil evidences to support the correlation of land masses that are presently not together can suggests that continents do move and land masses can change position.
This was one of the earliest prove suggest by Alfred Wegener to back up his theory of continental drift.
- Since fossils are evidence of prehisotric life, a place originally together should have the same fossil contents.
- When they become separated, the fossil contents in their lithology should match.
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Continental drift brainly.com/question/5002949
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<span>1.58x10^-1 moles
To get the number of moles, we simply need to divide by Avogadro's number, which is 6.0221409x10^23. So
9.50x10^22 / 6.0221409x10^23 = ?
Since we're dealing with scientific notation, we will deal with the significand and exponents separately.
To divide, simply divide the significands as you would normally.
9.50 / 6.0221409 = 1.577512077
And subtract the exponent for the divisor from the exponent from the dividend:
22 - 23 = -1
And we now have
1.577512077 x 10^-1 moles.
But that answer has far too many digits given the precision of the data and should only be as precise as the least precise piece of data used. In this problem, we had 8 digits of precision for Avogadro's number and 3 digits of precision for the number of atoms. Of those 2 pieces of data, 3 is the lowest precision and therefore the answer should be rounded to 3 digits, giving 1.58x10^-1 moles.</span>
Answer:
1, 2, 2, 1
Explanation:
This is basically the equation we're trying to balance:
Cu + AgNO₃ → Ag + Cu(NO₃)₂
We start with Copper (Cu): There is 1 atom on the reactants'(left) side and 1 atom on the products'(right) side which means it's balanced
The second is Silver (Ag): There is 1 atom on the reactants' side and 1 atom on the products' side which means it's balanced
The third is Nitrogen (N) and there is 1 atom on the reactants' side and 2 atoms on the products' side. We balance it by multiplying the reactants' side by 2
Cu + 2AgNO₃ → Ag + Cu(NO₃)₂
Silver is now imbalanced so we multiply the silver atoms on the product's side by 2
Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂
If you count them now, the atoms on each side are the same number
1 Copper atom on each side
2 Silver atoms on each side
2 Nitrogen atoms on each side
6 Oxygen atoms on each side (2 sets of 3 oxygen atoms)
<u>1</u>Cu + <u>2</u>AgNO₃ → <u>2</u>Ag + 1Cu(NO₃)₂
