Answer:
Increase the concentrations,
Decrease the surface area of NaOH (in case it's solid);
Use a catalyst;
Increase the temperature
Explanation:
Reaction rate depends on:
- the concentration of the reactants: the greater the concentration, the greater the rate, since more particles per unit volume will increase the probability of a successful collision leading to a reaction. We may then increase the concentration of NaOH or vinegar solution;
- the surface area of the solid reactant: in case we have NaOH in solid form, we may decrease the size of the crystals to increase the reaction rate. This is because the greater the area, the more particles are likely to collide with it;
- add a catalyst: catalysts increase reaction rate, in this problem, we don't need any catalyst, as this is an acid-base reaction that is relatively quick, a catalyst would decrease the activation energy barrier;
- increase the temperature: higher energy of the particles and a higher velocity of each reactant would increase the probability of a successful collision.
The force acting between two charged particles A and B is 5.2 x 105 newtons. Charges A and B are 2.4 x 102 meters apart. If the charge on particle A is 7.2 x 108 coulombs, what is the charge of particle B? (k 7 9.0 x 109 newton meters?/coulomb)
Answer: The new pressure is 0.509 atm
Explanation:
The combined gas equation is,
where,
= initial pressure of gas = 1.20 atm
= final pressure of gas = ?
= initial volume of gas = 580 ml
= final volume of gas = 1.45 L = 1450 ml (1L=1000ml)
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above equation, we get:
The new pressure is 0.509 atm
Answer:
Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 × 10−27 kg, which is 1,836 times the mass of an electron.
Answer:
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Explanation:
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