Answer:
0.98 g of H₂
Explanation:
the balanced equation for the reaction is
Mg + 2HCl ---> MgCl₂ + H₂
molar ratio of Mg to H₂ is 1:1
number of Mg moles reacted = 12 g/ 24.3 g/mol = 0.49 mol
according to molar ratio
when 1 mol of Mg reacts 1 mol of H₂ is formed
therefore when 0.49 mol of Mg reacts - 0.49 mol of H₂ forms
therefore mass of H₂ formed = 0.49 mol x 2 g/mol = 0.98 g
mass of H₂ formed is 0.98 g
<span>Part of a rocket's propulsion system includes a chemical oxidizer, either in the form of liquid oxygen, the solid ammonium perchlorate, or the propulsion/oxidizer mixture Hydrazine. No outside source of oxygen is needed.
Steering is accomplished by "gimbaled" rocket nozzles which change the direction of the blast to keep the rocket on course. Once in space and in orbit, slight changes in orientation is made by small rockets placed around the craft that spurt little gas jets to nudge the craft into the desired position.</span><span>
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Very little electric force is required to cause electron flow in conductors. This is due to electrons called "free electrons", which exist in the atoms of conductors. "Free electrons" are electrons that are very weakly bonded to the atom. ... Metals such as copper, silver, and gold are good conductors.
Well, atoms are loosely bound and free to move through the material. Almost all, or just most, atoms will hold on to electrons very tightly and are insulators.
Answer:1. height(in.)
2. arm span (in.)
3. (30,27)
Explanation: i just answered it and it was right:)
Answer:
potassium and fluorine both react and form potassium fluoride.
Explanation:
Synthesis reaction:
It is the reaction in which two or more simple substance react to give one or more complex product.
General reaction:
A + B → AB
For example in given potassium and fluorine reaction both react and form potassium fluoride.
Chemical reaction:
K + F₂ → KF
Balanced chemical reaction:
2K + F₂ → 2KF
The oxidation state of potassium is +1 while the oxidation state of fluorine is -1. That's why one atom of potassium combine with one atom fluorine and form potassium fluoride.
