Answer:Explanation:Protons and other subatomic particles will be discussed a little later. The atoms of different elements are different from each other because they have different numbers of protons. The graphic below illustrates this point by showing the atoms of two elements in the containers of oxygen and hydrogen.
Answer:
-2
Explanation:
Consider object is starting 12 units right from the reference point which is 0.
Assign the right direction positive sign.
when object is moving 14 units on left direction the position of object will be two units to the left side of reference point.
Assign the left direction negative sign position will be -2.
Answer:
D. 3 Co²⁺(aq) + 2 PO₄³⁻(aq) ⇒ Co₃(PO₄)₂(s)
Explanation:
The complete ionic equation includes all the ions and the insoluble species. Let's consider the following complete ionic equation.
3 Co²⁺(aq) + 6 NO₃⁻(aq) + 6 Na⁺(aq) + 2 PO₄³⁻(aq) ⇒ Co₃(PO₄)₂(s) + 6 Na⁺(aq) + 6 NO₃⁻(aq)
The net ionic equation includes only the ions that participate in the reaction (not spectator ions) and the insoluble species. The corresponding net ionic equation is:
3 Co²⁺(aq) + 2 PO₄³⁻(aq) ⇒ Co₃(PO₄)₂(s)
Answer:
Energy
potential energy kinetic energy
chemical energy thermal energy
joules
Explanation:
chemical energy is a type of potential energy or stored energy. Heat is a kinetic energy and energy is measured in joules.
Answer:
The correct answer is option B.
Explanation:
When we increase number of molecules of reactant frequency of the molecular collision increases due to which effective collision between reactant molecules to form a product also increases, With this overall rate of the reaction increases.
Where as:
When we increase the temperature of the reactant molecules increase in average kinetic energy of the molecules is observed.
When we increase the activation energy of the reaction rate of the reaction slows down,