Answer:
it a
Explanation:
You have to decide the grams you have or the grams you get once converted to moles by the atomic mass of the electron you find on the periodic table to get your amount of atoms…
For example…
65.3 grams of oxygen, you look at your periodic table to find the mass and you see it’s rounded to 16. So, you divide the 65.3 by 16, to get your atoms.
65.3/16 =4 atoms.
The melting point (or, rarely, liquefaction point) of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at standard pressure.
<h3><u>Answer;</u></h3>
Carbon monoxide
<h3><u>Explanation;</u></h3>
- Clean Air Act is a US federal law that is designed to control the pollution of air on a national level.
- Under the clean air act, the environmental protection agency is required to regulate the emission of pollutants which endanger public health and welfare.
- <em><u>EPA is required to the emission of six major pollutants namely: carbon monoxide, nitrogen dioxide, sulfur dioxide, particulate matter, hydrocarbons and photochemical oxidants</u></em>.
How fast it changes position in time is the objects speed