Answer:
Change in velocity is -4m\s
acceleration is -2m\s^2 cause Change in velocity = final v - initial v
Explanation:
Calculating acceleration involves dividing velocity by time — or in terms of SI units, dividing the meter per second [m/s] by the second [s]. Thus the SI unit of acceleration is the meter per second squared .
The answer is: C) MgO + H2O.
Balanced chemical reaction: MgO + H₂O → Mg(OH)₂.
Synthesis reaction is a type of reaction in which multiple reactants combine to form a single product.
In this chemical reaction magnesium oxide and water react anf form magnesium hydroxide.
Other examples are not synthesis reactions.
Explanation:
A hydrogen atom is composed of a proton (including a neutron) and electron. In chemical reaction with Hydrogen, the atom can easily gain or lose its only electron in its 1s orbital shell to achieve stable electron configuration.
It can behave like alkali metals when it loses its valence electron in its outermost orbital shell in a reaction. An example is just like metals, it can react with non-metals like chlorine (to form HCl).
Hydrogen can also act as a non-metal and gain an electron in its outermost valence shell to achieve stable electron configuration of 1s². This way it can behave like a halogen. It can react with metals such as Sodium to form a NaH (Sodium Hydride).
Learn More:
For more on Hydrogen structure check out;
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The concentration because on the formula the concentration x cf