Answer:
1.81 x 10²⁴atoms
Explanation:
Given parameters:
Number of molecules = 3 moles
Unknown:
Number of atoms = ?
Solution:
To solve this problem, we are going to use the mole concept.
1 mole of any substance contains 6.02 x 10²³ atoms
So
3 mole of propanone will contain 3 x 6.02 x 10²³ atoms = 1.81 x 10²⁴atoms
Answer: 0 neutrons
Explanation:
to find neutrons you subtract the atomic number from the Atomic mass. The atomic mass is 1. The atomic number is 1. So 1-1=0 making the neutrons in a hydrogen molecule 0.
Answer:
Explanation:
<em>Given: </em>
P1 = 78.89 ATM
V1 = 12 litres
T1 = 70° C= 343.15 K
V2 = 10 litres
T2 = 95°C= 368.15 K
<em>To find:</em>
P2 = ?
<em>Solution:</em>
Using ideal gas equation,
Since the number of moles & Universal gas constant (R) is constant, the final relation that would be derived between initial & final variables.
<em>(The only unit conversion needed is temperature because it was an addition factor, for other variables it will be cancelled out) </em>
Answer:
Scientific Explanation of weather change and cause storms is described below in detail.
Explanation:
The weather is just the nature of the environment at any time, including items such as warmth, rainfall, air pressure, and cloud shelter. Daily variations in the weather are due to storms and winds. Seasonal variations are due to the Earth spinning nearby the sun. Warm beginnings often produce stormy weather as the heated air mass at the exterior rises above the cool air mass, creating clouds and storms.
Answer:
An element is a substance that is made up of the same kind of atoms and
cannot be broken down into simpler substances by any known chemical means
examples of element are iron boron carbon helium calcium hydrogen etc