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Sphinxa [80]
3 years ago
14

What was the purpose of the periodic table?

Chemistry
1 answer:
andre [41]3 years ago
4 0

Answer:

A

Explanation:

The purpose of the periodic table was to organize elements as they were discovered into periods and groups, according to their properties. It was not just a naming of elements, as a list.

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The sugar ribose is an important component of RNA. Ribose is 40.0% C, 6.7% H, and 53.3\% by mass. How many grams of each element
Brums [2.3K]

Answer:

C_5H_10O_5

Explanation:

5 0
3 years ago
Help!!! Acids and Bases
valentina_108 [34]
ACID: A substance that accepts a lone pair of electrons

BASE: A substance that donates a lone pair of electrons

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Are watches considered as compound machines?
Alisiya [41]
Yes. They are called compound machines because two or more simple machines were combined to create it.
5 0
3 years ago
For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298 K when ∆G = -20.5 kJ/mol?
harina [27]

Answer:

Q= 245 =2.5 * 10^2

Explanation:

ΔG = ΔGº + RTLnQ, so also ΔGº= - RTLnK

R= 8,314 J/molK, T=298K

ΔGº= - RTLnK = - 6659.3 J/mol = - 6.7 KJ/mol

ΔG = ΔGº + RTLnQ → -20.5KJ/mol = - 6.7 KJ/mol + 2.5KJ/mol* LnQ

→ 5.5 = LnQ → Q= 245 =2.5 * 10^2

6 0
3 years ago
3. In an atomic model, what particles are found inside the nucleus of an atom?
sukhopar [10]

Answer:

Neurons and Protons

Explanation:

The Electrons are outside of the nucleus, also known as the <em>Electron</em><em> </em><em>Cloud</em><em>.</em>

I hope this was what you were looking for, and as always, I am joyous to assist anyone at any time.

4 0
3 years ago
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