Chemistry X10 solves homework and tests.
• Is suitable for 7, 8, 9, 10 and 11 classes
• Works without Internet connection
• 800,000 downloads
TASKS SOLUTIONS
Enter:
"Given" and "Find"
Result:
explanation and answer
Types of solvable tasks:
• by formulas
• solutions
• mixtures
• reaction equation
• lack and excess
The app formula
CHEMICAL REACTIONS
Find part reaction
8000 reactions are available without internet connection
TRANSFORMATION CHAINS
Solves open chains
Enter:
Cu = CuO = CuCl2 = Cu (OH) 2
Result:
1) Cu + H2SO4 = CuO + SO2 + H2O
2) 4CuO + 2NH4Cl = 3Cu + CuCl2 + N2 + 4H2O
3) 2NaOH + CuCl2 = 2NaCl + Cu (OH) 2
COEFFICIENT ARRANGEMENT
Method of electronic balance
Enter:
H2 + O2 = H2O
Result:
2H2 + O2 = 2H2O
MOLAR MASSES
Counts molar masses of complex substances.
Enter:
Cu (OH) 2
Result:
98 g / mol. Cu (OH) 2. These are: Cu, O and H ...
FORMULAS FOR TASKS
Formulas are divided into parts: mass, molar mass, etc.
For each of them: mass: m = nM, m = ρV and other.
THE PERIODIC TABLE
You can find: period, group, valence, crystal, lattice, temperature, electronic configuration, energetic levels, electronegativity.
PROTECTION FROM TEACHER: Call From Mom and Clock
John is cheating on his grand test. Teacher notices your phone.
“Excuse me, my mom is calling”, says the screen. There is a phone call from John's mom.
“Go to the hall and pick up the phone”, she suggests.
There is a solved task as before! He remembers the solution and comes back to the classroom.
His mom didn't call him. John has turned on protection from the teacher.
There are 2 types of protection in “Chemistry X10” - Call From Mom and Clock. Clock works by default, Call From Mom is available in Pro-version.
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“Pro-version” is a service upon monthly subscription. It protects you from the “Call From Mom” and the detailed solution of tasks. “Pro-version” costs 1.99 USD (equivalent in local currency) per week.
Auto-extension of subscription will be updated automatically. Payment will be proceeded from your iTunes account within 24 hours before the current subscription expiration.
User can manage the subscriptions. You can turn off auto-extension after purchase in account settings.
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