Answer:
uhm no sadly
Explanation:
Typically, they prepare the patient for their dental exam or procedure, sterilize and disinfect instruments, record treatment information, take down medical and dental histories, instruct patients in oral hygiene, order dental supplies, schedule appointments, and create orthodontic appliances.
What are the phrases to choose from?
The answer is option A. metals
That is Alchemy refers to the transmutation of A. metals.
Alchemy is a form of chemistry and philosophy that is practiced in the middle ages and basically used for discovering methods for transmuting baser metals into gold.
So, the answer is Alchemy refers to the transmutation of metals.
Using ideal gas equation,
PV=nRT
Where P=pressure(atm), V=volume(L), n=number of moles of the gas, R=gas constant, 0.0821 atm L/moles K, T=temperature(K)
At STP:
P=1 atm
T=273K
n=1 as given
So using ideal gas equation,
V=nRT/P
So,
V=1*0.0821*273/1
=22.4 L
Convert each amount of grams into moles:
I: 23.24g x 1 mol / 126.90g = 0.1831 mol I
C: 2.198 x 1 mol / 12.01g = 0.1830 mol C
N: 2.562 x 1 mol / 14.01g = 0.1829 mol N
Each element has roughly the same amount of moles, which means the whole number ratio between the elements is 1:1:1
Therefore the empirical formula is ICN
