Answer:D. 2857 joules
Explanation:
Not going to lie I guessed but got it right
Answer:
Option A is correct = combustion
Explanation:
When substance react with oxygen combustion is occur. The substance which burned is called fuel and in this process large amount of heat is released to the surrounding. It is exothermic process.
For example:
4Li + O₂ → 2Li₂O
2Mg + O₂ → 2MgO
S + O₂ → SO₂
The product which is formed as a result of combustion reaction are called oxides.
In given examples we can see that lithium, magnesium and sulfur react with oxygen and product formed is oxides of respective elements such as lithium oxide ( Li₂O), magnesium oxide (MgO) and sulfur oxide ( SO₂ ).
Other options are incorrect because:
Single replacement:
It is the reaction in which one elements replace the other element in compound.
AB + C → AC + B
Double replacement:
It is the reaction in which two compound exchange their ions and form new compounds.
AB + CD → AC +BD
Decomposition reaction:
It is the reaction in which one reactant is break down into two or more product.
AB → A + B
Answer:
Protons = atomic #
Neutrons = Mass # - atomic #
Electrons = atomic # - charge ( If no charge electrons = 0 therefore electrons = atomic # only if No charge not including the ^ number thing)
The element is Palladium
atomic number = 46.
Atomic Mass = 106
Therefore The answer being
Protons = 106
Neutrons = 60
Electrons = 104
( Sorry im only in the 9th grade but i did the best i could) The reason electrons are 104 is because of the 2+ meaning 2+ more protons than electons.