the element silver has two naturally occurring isotopes 109Ag and 107Ag with a mass of 106.905u. silver consists of 51.82% 107Ag and has an average atomic mass of 107.868u. calculate the mass of 109 Ag
Answers
106.905*0.5182+0.4818x=107.868
x=108.904 amu
No, it can have several different isotopes that have a weighted average atomic mass of 52 amu.
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Why can't you change the subscripts in a formula in order to balance a chemical equation?
1L = 4.2 cups
4 L = [?] cups
Answers
Answer:
16.8 cups
Explanation:
We are given that there are 4.2 cups in in 1 liter of a liquid and we are to find out the number of cups that there will be in 4 liters.
To find this out, we will use the ratio method.
We know that:
1 L = 4.2 cups
So we can write it as:
Therefore, there are 16.8 cups in 4 liters.
16.8 cups are in 4 liters. A conversion factor is a ratio that allows you to convert a quantity expressed in one unit to an equivalent quantity expressed in another unit.
It is used in various fields, such as physics, chemistry, engineering, and everyday measurements. Conversion factors are derived from the relationships between different units of measurement.
1 liter is equivalent to 4.2 cups. This conversion factor tells that for every 1 liter, we have 4.2 cups.
To find out how many cups are in 4 liters, multiply 4 liters by the conversion factor of 4.2 cups per liter:
4 liters x 4.2 cups/liter = 16.8 cups
So, 4 liters would have 16.8 cups. This means that if 4 liters of liquid are into cups, need 16.8 cups to hold it all.
To learn more about the conversion factor, follow the link:
#SPJ6
Answers
This is so because liquid is free to move and can fit in any shape.
Gas floats and is usually always free to move.
Solid isn't free to move unless some force moves it.
or metalloid
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Answer:
nonmetal
Explanation:
go to ptable.com. it helps a lot
Answers
Answer:
acquired/harmful
Explanation:
This type of mutation and exposure will cause indefinite problems.
Al₂O3 + O₂ --
Ah + O₂
Answers
Answer:
2Al2O3 → 4 Al + 3 O2
Explanation:
(2) electrical energy to nuclear energy
(3) chemical energy to electrical energy
(4) chemical energy to nuclear energy
Answers
Answer: 1) electrical energy to chemical energy
Explanation: The reaction must be forced by applying an external electric current thus needing a supply of electric current.