Hello!
Isotopes are variants of an element that have a different number of neutrons. Essentially, their only different is that their weight varies from the original element.
Therefore, they are similar in that they have the same number of protons, same number of electrons, and overall, the properties (apart from weight) are the same.
Hope this helped!
Weather patterns in the Northern Hemisphere move "from east to west over the Pacific Ocean." The Northern Hemisphere of the Earth is the upper half starting from the equator. <span>Its currents tend to move in clockwise pattern. </span><span>The clockwise air circulation of Northern Hemisphere tens to create high pressure weather cells.</span>
Answer:
The solution would need 13.9 g of KCl
Explanation:
0.75 m, means molal concentration
0.75 moles in 1 kg of solvent.
Let's think as an aqueous solution.
250 mL = 250 g, cause water density (1g/mL)
1000 g have 0.75 moles of solute
250 g will have (0.75 . 250)/1000 = 0.1875 moles of KCl
Let's convert that moles in mass (mol . molar mass)
0.1875 m . 74.55 g/m = 13.9 g
Answer: Alcohol
Explanation:
A neutralization reaction involves the combining of an acid and a base to create a salt and water. Reactants = acid + base. Products = salt + water. No alcohol is involved with a neutralization reaction.
Answer: protons and neutrons
Explanation: both of those subatomic particles are located in the nucleus and account for 99.99% of atomic mass
