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Kobotan [32]
4 years ago
9

Which element is classified as an alkali metal?

Chemistry
1 answer:
Delvig [45]4 years ago
8 0

Answer: The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K),[note 1] rubidium (Rb), caesium (Cs),[note 2] and francium (Fr).

Explanation:

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What is the balanced equation of this chemical reaction ?
iren2701 [21]
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3 years ago
5. A gas with a volume of 300 Liters at 295 kPa is allowed to expand to a volume of 350 Liters. What is the final pressure insid
storchak [24]

Answer:

<h2>252.9 kPa</h2>

Explanation:

The new pressure can be found by using the formula

P_2 =  \frac{P_1V_1}{V_2}  \\

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

From the question we have

P_2 =  \frac{300 \times 295}{350}  \\  = 252.85714

We have the final answer as

<h3>252.9 kPa</h3>

Hope this helps you

3 0
3 years ago
The atomic number of an element is 29. What is the electron configuration of this element?
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4 years ago
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What else is produced when sodium carbonate decomposes?<br> Na2Co3 - Na2O+
AleksandrR [38]

Answer:When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.

The chemical symbol for sodium carbonate is .

The decomposition of sodium carbonate is:

The decomposition of sodium bicarbonate,  will result in the formation of sodium oxide,  and carbon dioxide, .

Hence, carbon dioxide,  will produce with sodium oxide,  on decomposition of .

Explanation:Na2CO3 Na2O +CO2   CO2 is the answer

8 0
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