Answer:
Acids dissolve in water to produce a solution that reacts with metals to produce H2 gas
Explanation:
Example of Acid = H2SO4
H2SO4 + 2Na = Na2SO4 + H2
Answer:
1.75moles
Explanation:
Molarity = number of moles (n) ÷ volume (V)
According to the information given in this question,
V = 500mL = 500/1000 = 0.500L
n = ?
Molarity = 3.5M
Using Molarity = n/V
number of moles (n) = V × molarity
n = 0.5 × 3.5
n = 1.75moles.
20 g of contains ions of
<h3>What is Mole?</h3>
A mole is a unit to measure an amount of any substance which contains as many elementary particles as there in 12 g of Carbon 12.
A mole contains particles and this fixed number is called Avogadro’s number.
No. of moles is given by,
where m = Given mass in grams
M = Molar mass
Here,
No. of moles of = = 0.132 moles
No. of molecules of = 0.132 x 6.022 x = 7.94 x
No. of molecules of = no. of ions of = no of ions of
Thus, no. of ions in 20 g of is 7.94 x
Learn more about the mole concept:
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Answer:
the gravitational force is proportional to the mass of both interacting objects, bigger objects will attract each other with a greater gravitational force. So the mass of either object increases, the force of gravitational attraction between them also increases.