How quickly will I receive my key after purchase?

Most keys are delivered instantly by sellers after payment confirmation. You will receive the key by email or directly on the website.

Can I return or exchange a key if it doesn’t work?

Usually yes, key sellers provide a guarantee on all keys. In case of activation issues, contact the seller’s chat for assistance.

Are keys supported for different platforms — Steam, Xbox, PlayStation, and others?

Yes, on Irongamers you will find keys and accounts for most popular platforms, including Steam, EA Play, Uplay, Xbox, Twitch, and Epic Games.

Can I get discounts and bonuses for referrals?

Usually yes, sellers can give personal discounts on new games and keys.

What payment methods are available?

We support various payment methods: bank cards, e-wallets, SBP, and other convenient options.

How is security and confidentiality ensured when buying?

The purchasing process takes place on a special page that uses modern data protection methods, encryption, and guarantees full confidentiality of your payment and personal data.

Solving a chemistry problem

Content: 5х.zip (7.94 KB)
Uploaded: 02.10.2023

Positive responses: 0
Negative responses: 0

Sold: 0
Refunds: 0

Seller: Derkach

Ask a question

Description

5. Write the reaction equation and select the coefficients using the electron-ion method:
K2Cr2O7 H2O H2SO4→Cr2(SO4)3 …; Na2SeO3 Cl2 NaOH→; FeSO4 NaClO NaOH H2O→Fe(OH)3 …

Additional information

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.

Similar items

$0.3

The solution of problem 249 in chemistry from Shimanovi

$1.17

Solving a chemistry problem

Description

Additional information

Similar items

Reviews