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3 years ago

15

According to the periodic table, which two elements are in the same row? A. copper and gold B. sodium and sulfur C. lithium and

silicon D. barium and uranium

1 answer:

Korolek [52]3 years ago

4 0

I think the answer is B. Correct me if i'm wrong :)

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Is h2c2o4 an Arrhenius base or arrhenius acid

maksim [4K]

Answer:
Oxalic Acid is and Arrhenius Acid.

Explanation:
According to Arrhenius Theory of acid and base, "Acid is any substance which when dissolved in water produces H⁺ Ions".

Therefore, Oxalic Acid is a diprotic substance, which is capable of donating protons in water. This acidity of oxalic acid can be dedicated to the stability of conjugate base, this stability comes from resonance of the negative charges on Oxalate ion. Below reaction shows the dissociation of Oxalic Acid into Protons and Oxalate Ion.

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4 years ago

What is the value of R in the ideal gas law?

dybincka [34]

It’s option B 0.0821L.atm/mol.K

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3 years ago

Chlorine gas reacts with aluminum metal producing aluminum chloride. What mass of chlorine reacts with 9.00g of Al to form AlCl3

Anit [1.1K]

The mass of chlorine that react with 9.00 g of Al to form AlCl3 is 35.465 grams

Explanation
write the equation for reaction
that is
2 Al + 3 Cl2 = 2 Al CL3
find the moles of Al reacted

moles = mass/molar mass

9 g/ 27 g/mol = 0.333 moles of Al

by use of mole ratio between Al to Cl2 which is 2:3 find the moles of Cl2

mole of cl2 = 0.333 x3/2 = 0.4995 moles

mass of Cl2 is therefore = moles x molar mass

= 0.4995 x71 = 35.465 moles

6 0

4 years ago

4 physical properties of spoonfull of sugar

almond37 [142]

Small crystals
<span>white, brown </span>
<span>hard as in solid at room temp </span>
<span>sweet </span>

3 0

3 years ago

Read 2 more answers

Whats the difference between a bonding electron domain and a nonbonding electron domain?

Alika [10]

Answer: lone pair of electrons

Explanation: A bonding electron domain is a pair of electrons shared between two atoms and a nonbonding is a lone pair of electrons

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3 years ago