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Chemistry

1 answer:

miss Akunina [59]4 years ago

5 0

If a compound is made from a metal and a non-metal, its bonding will be ionic.

If a compound is made from two non-metals, its bonding will be covalent.

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What is the name of the element with a valence electron configuration of 2s^22p^4

goblinko [34]

Since the configuration contains the number 2s and 2p, you can assume that it is in period 2 of the periodic table. By noble gas shorthand, you start with helium, which is atomic number 2. 2s²2p^4 has 2+4 = 6 valence

Add 2+6 = 8, which is Oxygen.

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3 years ago

What kind of data would you need to collect to carry out this experiment?

JulijaS [17]

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Sperm whales are found in oceans around the world and are known to have the largest brain of any organism. The head of a sperm w

AlexFokin [52]

A is the answer for this

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3 years ago

Read 2 more answers

Did entropy increase or decrease?

seropon [69]

Answer:

1) increase

2) increase

Explanation:

Entropy is the degree of disorderliness or randomness of a system. It is the measure of the unavailable energy in a system.

Entropy increases with increase in the number of particles. If the number of particles in a system increases from left to right, the entropy of the system increases accordingly.

In reaction 1, the number of particles from left to right increased from two to three hence the entropy was increased.

In reaction 2, the number of particles from left to right increased from three to five hence the entropy was increased.

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3 years ago

Kc for the reaction of hydrogen and iodine to produce hydrogen iodide, H2(g) I2(g) ⇌ 2HI(g) is 54.3 at 430°C. Determine the init

Jlenok [28]

Answer : The initial concentration of HI and concentration of $HI$ at equilibrium is, 0.27 M and 0.386 M respectively.