Answer:
When two forces acting on an object are of similar size but acting in opposite directions, we say they are forces of balance. If the forces on an object are balanced (or if there are no forces acting on it), this is what happens: the object stays stationary
The answer to this question would be: Because CoCl2 will change color when humidity changes.
Cobalt chloride or CoCl2 can change its color depends on the humidity. The dry cobalt chloride will have pink color but it will changes into blue if you mix it with water. If the humidity is high, the water in the air might condense into the cobalt chloride and change its color to blue. So high humidity will cause more cobalt chloride turn into blue.
Answer:
d. pair
Explanation:
because,H3PO4 is a strong acid
The number of molecules of SF₆ present in 25 g of SF₆ will be 1.03 x 10²³ .
Molar mass = 146.06 g/mol
Number of mole in 25 gm of SF₆ = 25 / 146.06 = 0.171
Now, number of molecules = 0.171 mole x 6.02 x 10²³ molecules
= 1.03 x 10²³ molecules of SF₆
Hence, the number of molecules of SF₆ present in 25 g of SF₆ will be 1.03 x 10²³ .
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