1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesya [120]
3 years ago
14

How does a material get a positive charge?

Chemistry
1 answer:
adoni [48]3 years ago
3 0

Answer:

positive charge comes from having more protons than electrons; negative charge comes from having more electrons than protons charge is quantized, meaning that charge comes in integer multiples of the elementary charge e

Explanation:

You might be interested in
A 110.0 mL sample of 0.040 M Ca2+ is titrated with 0.040 M EDTA at pH 9.00. The value of logKf for the Ca2+−EDTA complex is 10.6
Alex787 [66]

Answer : The conditional formation constant is 1.83\times 10^9

Explanation :

First we have to calculate the formation constant.

As we are given that:

\log k_f=10.65

k_f=10^(10.65)

k_f=4.47\times 10^{10}

Thus, the formation constant is 4.47\times 10^{10}

Now we have to calculate the conditional formation constant.

The expression used as:

k'_f=\alpha_y^+\times k_f

where,

k'_f = conditional formation constant = ?

\alpha_y^+ = activity coefficient at pH 9.00 = 0.041

k_f = formation constant = 4.47\times 10^{10}

Now put all the given values in the above expression, we get:

k'_f=(0.041)\times (4.47\times 10^{10})

k'_f=1.83\times 10^9

Therefore, the conditional formation constant is 1.83\times 10^9

6 0
3 years ago
Which best explains why scientific theories grow stronger over time? (2 points)
Mariana [72]
<span>One theory that explains why scientific theories grow stronger over time is because more scientists study and work on the theory. Over time as the theory is studied in greater depth it becomes more accepted.</span>
3 0
4 years ago
What is the largest number that can be added to 6.022x10^23 without changing its displayed value?
Juli2301 [7.4K]
<span>The Avogadro constant, named after the scientist Amedeo Avogadro, is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole. The answer, in this case, would be 0.0004999...*10^23 = (10^19)*(4.999... [any finite number of 9s]).</span>
3 0
3 years ago
Two forces are acting on a wheelbarrow.One force is pushing to the right and an equal force is pushing to the left.What can you
andreev551 [17]
B. It is not accelerating since equal and opposite forces cancel each other. Hope it helps
7 0
4 years ago
Read 2 more answers
10.Which device is designed to produce
andreev551 [17]

Which device is designed to produce mechanical energy?

Well, mechanical energy is the sum of potential and kinetic energy. Kinetic energy is a unit of energy in which is the reason why an object does movement, while potential energy is another unit of energy in which is the reason why an object doesn't move, or stops. While you can stop a fan or a lamp, it isn't automatic. It's manually. So the answer is (4) an oven because mechanical energy happens automatically, not manually, or for a greater reason.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to water molecules that form the ice on a road when temperatures rise and the ice begins to melt?a)As temperature i
    12·2 answers
  • Pyruvate can be converted to lactate instead of going to the preparatory reaction. Why does this occur?
    15·1 answer
  • What are diprotic acids​
    6·1 answer
  • A liquid has a density of 16 g/mL. If you have 0.21 mL of liquid, what what is mass be
    11·1 answer
  • Atoms of the most reactive elements tend to have
    12·2 answers
  • What is the relationship between the concentration of the hydronium and hydroxide ion and pH in any water solution?
    15·1 answer
  • A student makes a ball-and-stick model of a propane molecule, as shown below. The black balls represent carbon atoms, and the wh
    10·1 answer
  • Which atom in the ground state has a stable electron configuration?
    8·1 answer
  • When a 0.764 g almond is burned, it heats 225 mL of water from 14.8oC to 18.4oC. Calculate the heat of combustion of the almond
    14·1 answer
  • The total number of electron pairs in a nitrogen molecules.is:<br> a) 2<br> b) 3<br> c) 5<br> d) 7​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!