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
-Dominant- [34]
3 years ago
8

Which Ionic Chemical Formula below is INCORRECT? NaCl MgO Ba2Cl Li2S

Chemistry
1 answer:
Mnenie [13.5K]3 years ago
7 0

Answer:

Li2S

Explanation:

You might be interested in
To see if it works like they want it to, engineers need to Question 3 options:
ziro4ka [17]

Answer:

they need to do their research

4 0
2 years ago
Read 2 more answers
The half-life of gold-198 is 2.7 days. After
Pie

Answer: 8.1 days

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant = x

a - x = amount left after decay process= \frac{x}{4} 

a) to find rate constant

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{2.7days}=0.257days^{-1}

b) for completion of one fourth of reaction

t=\frac{2.303}{k}\log\frac{x}{\frac{x}{4}}

t=\frac{2.303}{0.257}\log{4}

t=8.1days

Thus after 8.1 days , one fourth of original amount will remain.

8 0
3 years ago
Most chemical reactions involve the evolution or absorption of heat energy. True or False
sergejj [24]

Answer:

True

Explanation:

The majority of the reactions happened with a flow of heat. When there's no heat, the reaction is adiabatic.

For no adiabatic reactions, the heat can be released (evolution) by the system, so the reaction will be exothermic, or absorbed by the system (absorption), then the reaction is called endothermic.

7 0
3 years ago
What is the chemical formula for the compound tetraphosphorus decasulfide?
marusya05 [52]
P S
4 10

you just use the roots given in the molecular formula
5 0
3 years ago
Which characteristic best identifies an Arrhenius base
skad [1K]

<span>Arrhenius base, such as NaOH(aq), produce hydroxide ions when dissolved in water. According to Arrhenius, base are compounds or ions that releases hydroxide (OH-) ions in its aqueous form which is true for NaOH.</span>

8 0
3 years ago
Read 2 more answers
Other questions:
  • Why does solid change to liquid when heat is added
    12·1 answer
  • Which layer of Earth has partially melted material that moves the tectonic plates? Crust, Inner core, Mantle, Outer core
    10·2 answers
  • List 3 examples of pure substances
    14·2 answers
  • What are constellations
    11·2 answers
  • When electrolyzing copper (ll) chloride, what reaction takes place at the anode? What reaction takes place at the cathode?
    8·1 answer
  • Anions and cations are
    13·2 answers
  • Is there DNA in the stucture of prokryotic
    15·2 answers
  • Please answer the question
    13·2 answers
  • suffixes Refer to the word parts table that you made for the words in Section 2 containing the suffix -ic. Use each of the words
    11·1 answer
  • Why are the discrete lines observed and not a continuous spectrum?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!