The number of electrons in an atom of an element being always the same
as the number of protons in its nucleus is False.
<h3>What is an Electron?</h3>
This is a sub-atomic particle which is negatively charged and is usually
involved in chemical reactions.
Electropositive elements donates electrons while electronegative
elements accepts electrons during chemical reactions which is why the
number of proton and electron aren't always the same.
Read more about Electrons here brainly.com/question/900457
One liquid disappears into another liquid
Let the ratio of grams of hydrogen per gram of carbon in methane be M, we know that:
M = 0.3357 g / 1 g
Next, lets represent the grams of hydrogen per gram of carbon in ethane be E. The final piece of information we have is:
M / E = 4/3
If we cross multiply,
3M = 4E
Now, substituting the value of M from earlier and solving for E,
E = (3 * 0.3357) / 4
E = 0.2518
There are 0.2518 grams of hydrogen per gram of carbon in ethane.
Answer:
C: Sodium chloride
Explanation:
Common salt is gotten when sodium atoms reacts with chlorine atoms in an exothermic reaction to form an ionic substance known as sodium chloride with the chemical formula NaCl.
Equation is;
2Na + Cl2 = 2NaCl
Looking at the options, the correct one is Sodium chloride.
