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
Cerrena [4.2K]
2 years ago
14

Does lithium lose or gain valence electrons? and how much?​

Chemistry
1 answer:
9966 [12]2 years ago
7 0
It has 3 protons and 3 electrons it can lose one of its electrons making it an ion so overal has a positive charge
You might be interested in
Calculate the concentration of so42− ions in a 0.010 m aqueous solution of sulfuric acid. express your answer to four decimal pl
dimulka [17.4K]
<span>Answer: 0.00649M


The question is incomplete,
</span>

<span>You are told that the first ionization of the sulfuric acid is complete and the second ionization of the sulfuric acid has a constant Ka₂ = 0.012
</span>
<span>
With that you can solve the question following these steps"
</span>

<span>1) First ionization:
</span>
<span>
H₂SO₄(aq) --> H⁺ (aq) + HSO₄⁻ (aq)


Under the fully ionization assumption the concentration of HSO4- is the same of the acid = 0.01 M


2) Second ionization
</span>

<span>HSO₄⁻ (aq) ⇄ H⁺ + SO₄²⁻ with a Ka₂ = 0.012
</span>

<span>Do the mass balance:
</span>


<span><span>        HSO₄⁻ (aq)        H⁺        SO₄²⁻</span>
</span>
<span /><span /><span>        0.01 M  - x          x            x


</span><span>Ka₂ = [H⁺] [SO₄²⁻] / [HSO₄⁻]</span>
<span /><span>
=> Ka₂ = (x²) / (0.01 - x) = 0.012
</span><span />

<span>3) Solve the equation:


</span><span>x² = 0.012(0.01 - x) = 0.00012 - 0.012x</span>
<span /><span>
x² + 0.012x - 0.0012 = 0
</span><span />

<span>Using the quadratic formula: x = 0.00649
</span><span />

<span>So, the requested concentratioN is [SO₄²⁻] = 0.00649M</span>

4 0
3 years ago
Read 2 more answers
What is the correct name for CaS04? (a) calcium sulfoxide (b) calcium sulfite (c) calcium sulfur oxide (d) calcium sulfate (e) c
Zielflug [23.3K]

Answer: OPTION, D

Explanation:

It is an example for ionic salt and has Calcium ion and sulfate ion.

Hence it's name is Calcium sulfate.

Calcium sulfoxide does not exist.

Calcium sulfite has CaSO3.

5 0
3 years ago
Read 2 more answers
Which planet is the most massive? A.Jupiter B.Mercury C.Venus D.Neptune
Ainat [17]

Jupiter is the biggest planet in are solar system

7 0
3 years ago
Read 2 more answers
Mary put a plant on a table in her room. After a few weeks, she saw that the stem of the plant was starting to bend toward the w
alexandr402 [8]
 a. the need for light
6 0
3 years ago
A gold-colored ring has a mass of 17.5 grams and a volume of 0.82 mL. What is the density of this ring?
max2010maxim [7]

Answer:

21 g/mL

Explanation:

To solve this problem, first look at the density equation, which is D=M/V, which D stands for density, M stands for mass, and V stands for volume. When you substitute in the variables, you get D=17.5/.82, which is equivalent to 21.34. However, since we need to pay attention to the sig fig rules for multiplying, we need to have the same amount of sig figs as the value with the least amount of sig figs, which is the number .82. .82 has two sig figs, so you round down. Your answer will be 21 g/mL.

4 0
3 years ago
Other questions:
  • You have 535 g of Zinc Chloride, ZnCl2. How many moles is this?
    9·2 answers
  • Americium-241 is a radioactive substance used in smoke detectors. The half life of americium is 432 years. If a smoke detector i
    14·1 answer
  • What change in volume results if 60 mL of a gas is cooled from 33 C to 5 C?
    14·1 answer
  • A protein has been isolated as a salt with the formula Na20P (this notation means that there are 20 Na+ ions associated with a n
    10·1 answer
  • Alice has type A blood and her husband Mark has Type B blood
    6·1 answer
  • A balloon is filled with 3.50 L of water at 24.0 C and 2.27 atm. If the balloon is placed outdoors on a hot day at a temperature
    14·1 answer
  • Help please!! I'll name you brainliest!!
    7·2 answers
  • Pls help me out with this question!
    13·1 answer
  • (GIVING BRAINIEST!)
    5·2 answers
  • Distinguish among solids, liquids, and gases on the basis of their shape, their volume, and how their particles are packed toget
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!