According to newton’s first law of motion, when will an object at rest begin to move? when its inertia decreases to zero when an unbalanced force acts upon it when the action and reaction forces are equal when two equal and opposite forces act upon it

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device