The answer is 35 grams.
When we mix salt and water, salt will dissolve. Still, it mass does not disappear, but remains intact. Mass cannot be destroyed. When salt is dissolved in the water, salt molecules are only re-positioned, but all the molecules are present as well as their mass. <span>So if you add 5 grams of salt in 30 grams of water, the resulting mass will be 5 + 30 grams, which is 35 grams. </span>
Answer: C hope this helps Have a wonderful day :)
Explanation:
Answer:
you will find answer here
Explanation:
https://www.coursehero.com/file/p5dijkb/propylene-styrene-8-A-repeating-head-to-tail-arrangement-is-not-possible-for/
Answer: The empirical formula of one that contains 30.45% nitrogen is 
.
Explanation:
Given: Mass of nitrogen = 30.45 g
Let us assume that the mass of given oxide is 100 grams.
As the atomic mass of nitrogen is 14.0067 g. So, moles of nitrogen will be calculated as follows.
Also, mass of oxygen = (100 - 30.45) g = 69.55 g
Atomic mass of oxygen is 15.9994 g/mol. So, moles of oxygen will be as follows.
The ratio of both the atoms is as follows.
This means that gas has 2 moles of oxygen to 1 mole of nitrogen. Hence, the formula of oxide is .
Thus, we can conclude that the empirical formula of one that contains 30.45% nitrogen is .
Answer:
On a roller coaster, energy changes from potential to kinetic energy and back again many times over the course of a ride. Kinetic energy is energy that an object has as a result of its motion. Potential energy is the energy an object has as a result of its position
Explanation:
