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borishaifa [10]
3 years ago
7

Please Help! I just started balancing equations and my teacher gave me this. Thanks in advance! :D

Chemistry
2 answers:
Alenkasestr [34]3 years ago
8 0
So you need to put numbers before each compound to make sure there are the exact same number of elements on each side. If you put a 4 before NH4 there are 4 Nitrogen and now 16 hydrogen. I just played around with numbers and guessed until I got them even.
matrenka [14]3 years ago
5 0

Answer:

3. AlCl3 + 3 AgNO3 => Al( NO3) 3 + 3 AgCl

4. ( NH4)2 Cr2O7 => N2 + Cr2O3 + 4 H2O

5. Al2S3 + 6 NaHCO3 => 2 Al(OH)3 + 3 Na2SO2 + 6 CO

Explanation: Solution attached on the balanced equation.

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A polar commercial antacid contains both Al(OH)3 and Mg(OH)2. Are these compounds Arrhenius bases, Brønsted-Lowry based, or both
seropon [69]

Answer:

Magnesium hydroxide, Mg(OH)2, is an Arrhenius base and therefore also a Brønsted-Lowry base.

However, water can also act as a base by accepting a proton from an acid to become its conjugate base, H3O+. where Al(OH)3 is acting as a Lewis Base.

Explanation:

Arrhenius acids and bases

An Arrhenius acid is any species that increases the concentration of H+start text, H, end text, start superscript, plus, end superscript in aqueous solution.

An Arrhenius base is any species that increases the concentration of OH−start text, O, H, end text, start superscript, minus, end superscript in aqueous solution.

5 0
3 years ago
Which of the following is the best definition of nodes?
max2010maxim [7]
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7 0
3 years ago
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Convert 636 femtometers to micrometers
ValentinkaMS [17]
6.36e-7 micrometers

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3 0
3 years ago
A mixture of 4 moles of CO2 and 10 moles of H2O are allowed to reach equilibrium in a 10. L container. What are the concentratio
il63 [147K]

Answer:

I believe the answer your looking for is 12.2

7 0
3 years ago
Mandelic Acid is an organic acid composed of carbon (63.15%), hydrogen (5.30%), and oxygen (31.55%). Its molar mass is 152.14 g/
Dafna1 [17]

Answer:

Empirical formula is C3H3O

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Explanation:

From the question given, we obtained the following data:

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We can obtain the empirical and molecular formula by doing the following as illustrated in the attached file. Please see attachment for explanation.

3 0
4 years ago
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