Answer:
118
Explanation:
The discovery of the 118 chemical element known to exist us of 2021
A Physical Change is what the change of ice is
Answer:
pressure of gas are constant describe the relationship between moles and temprature
Answer: C2HNO3
Explanation: C = 27.59/12.011 = 2.297
H = 1.15/1.008 = 1.1409
N = 16.09/14.007 = 1.1487
O = 55.17/15.999 = 3.4483
Divide by smallest result:
C = 2
H=1
N=1
O = 3
Empirical formula = C2HNO3
