Answer:
If your asking why they are different because atoms are rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both reactants and products for them to be the same.
Hi, P.S. The atomic number will always be the same as the number of protons...
Answer:
<h3>The answer is 23.8 miles</h3>
Explanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
<h3>distance = velocity × time</h3>
From the question
velocity = 35.0 mi/hr
time = 2455 s = 0.68 hr
We have
distance = 35 × 0.68
We have the final answer as
<h3>23.8 miles</h3>
Hope this helps you
Sulfur will float, and iron will sink because each will retain its properties.
“Iron will float, and sulfur will sink because each will lose its properties” is <em>incorrect</em>. A substance will lose its properties only if it reacts to form a new substance.
“Both will float because they are physically mixed” is <em>incorrect</em>. The substances in a mixture retain their properties.
“Both will float because they react chemically” is <em>incorrect</em>. Iron and sulfur do not react at room temperature. Even if they did, the iron sulfide would sink.
Answer:
6.208 mol
Explanation:
Mass of Bromine Liquid = 496g
Number of moles = ?
Relationship between number of moles and mass is given as;
Number of moles = Mass / Molar mass
Molar mass of Bromine = 79.9g
Number of moles = 496 / 79.9 = 6.208 mol