In general, a scientific law<span> is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or </span>what<span> causes it. The explanation of a phenomenon is called a </span>scientific theory<span>. It is a misconception that </span>theories<span> turn into </span>laws<span> with enough research
From Google.</span>
Answer:
How many moles of oxygen are in 2.71 x 1025 molecules of carbon dioxide (CO2)? 90 moles. How many moles are there in 125 grams of carbon? 10.42 moles of carbon.
Explanation:
Answer:
11.0L of carbon dioxide is produced
Explanation:
Balanced equation: 
According to balanced equation, 1 mol of 
produces 1 mol of 
So, 0.489 mol of produces 0.489 mol of
Let's assume behaves ideally.
So, 
where P is pressure, V is volume , n is number of moles, R is gas constant and T is temperature in kelvin
Plug-in all the values in the above equation-
or, 
So, 11.0L of carbon dioxide is produced
Answer:
You need two potassium atom to form an ionic bond with one sulfur atom. Pottassium ions are formed by donating losing their electrons in the outermost shell, thr lost electrons are gained by sulphur atom to form 2K+ and S2-, respectively. The attraction between the positive ions and negative ions gives rise to the ionic bond and the molecular formula is K2S
Explanation:
Sound waves are produced by air flow coming from our lungs passing through our throat, more specifically our larynx and moving with two folds of tissue called vocal chords. The sound is made by the vibration of vocal chords, so the more stretched the chords are over the larynx, their frequency of vibration is higher, therefore producing higher-pitched sounds.
