Answer:
You can make the ramp really steep and hold the marble at the top of it
Explanation:
Answer:
Every element has a proton, neutron, and electron. The number of protons is equal to the atomic number, and the number of electrons is equal to the protons unless it is an ion.
Answer: 2 Ag3N => 6 Ag + N2
Explanation: Decomposition is expressed through this generic equation:
AX => A+ X
After the reaction balance the chemical reaction.
Answer:
0.200L of 0.300 Al(OH)₃ are necessaries
Explanation:
A diprotic acid, H₂X, reacts with aluminium (III) hydroxide, Al(OH)₃ as follows:
3 H₂X + 2 Al(OH)₃ → 6H₂O + Al₂X₃
To solve this question we must find the moles of the H₂X, using the balanced reaction we can find the moles of Al(OH)₃ and its volumen knowing its molar concentration is 0.300M:
<em>Moles H₂X:</em>
0.300L * (0.300mol / L) = 0.0900moles H₂X
<em>Moles Al(OH)₃:</em>
0.0900moles H₂X * (2mol Al(OH)₃ / 3mol H₂X) = 0.0600 moles Al(OH)₃
<em>Volume 0.300M Al(OH)₃:</em>
0.0600 moles Al(OH)₃ * (1L / 0.300moles) =
<h3>0.200L of 0.300 Al(OH)₃ are necessaries</h3>
