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sasho [114]
3 years ago
6

The islands in the mid-Pacific Ocean region were formed by

Chemistry
2 answers:
barxatty [35]3 years ago
4 0
C) volcanic activity
Papessa [141]3 years ago
4 0
Answer: C, volcanic activity

Explanation: I am from a pacific island. Most of the islands were formed by volcanic activity.
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What is the name of IBr4?<br> And is it covalent or ionic?
BlackZzzverrR [31]

Answer: The name of the IBr_4 is Iodine tetrabromide and it is a covalent compound.

Explanation:

Inter-halogen compounds are compounds which composed of two different halogen atoms. For example ;ICl_3,IF_5 etc.

The naming is done by first writing the central atom symbol's name followed by the prefix corresponding to the number of atoms of another halogen atom like: Mono for 1, di ,for 2 tri for 3, tetra for 4 , penta for 5 etc. After this name of the another halogen is written with suffix 'ide' in the end.

The name of the IBr_4 is Iodine tetra bromide.

In halogen compounds, the difference in electronegativities is not so large due to which they form covalent compounds by the means of sharing the electrons. Hence the Iodine tetrabromide  covalent compound.

8 0
3 years ago
How many moles of hydrogen are there, if there are 4 molecules of hydrogen?
Scorpion4ik [409]

Answer:

Explanation:

In this case, according to the Periodic table

there is 1g of hydrogen per mole. As we know that dihydrogen (H2) has two hydrogen atoms per molecule. So,there will be 2*1g hydrogen per mole=2g dihydrogen per mole.

If there is 2g dihydrogen per mole,and we have 4g,then we know that there is 2 mole dihydrogen in 4g.And for hydrogen there is 4 moles in 4g of hydrogen

5 0
3 years ago
Select the ion.<br><br> a) NO2<br> b)H2SO4<br> c) Al+3 ...?
Gemiola [76]
I believe the correct answer from the choices listed above is the third option. The ion would be Al+3. It is obvious because among the options, this is the only substance that has a charge. <span>An </span>ion<span> is an atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge. </span>
5 0
4 years ago
Read 2 more answers
If a speaker is moved from 2 feet away to 4 feet away, the volume of the sound will: half double quarter stay the same
neonofarm [45]

Answer:

the volume of the sound will quarter

Explanation:

As you move far away from the source, the loudness of sound decreases. This is because as the distance from the source increases, the area it covers also increases thereby spreading the energy over a great area leading to lesser loudness and intensity.

As a result of this, sound intensity follows an inverse square law:

I ∝ 1/d²; where I is the intensity and d is the distance from source.

Therefore If a speaker is moved from 2 feet away to 4 feet away (increment of 2 feet), the volume of the sound would quarter (1/2² = 1/4)

6 0
3 years ago
Is "Barrel of Slime" Toxic?
slava [35]
No Barrel of Slime Isn't toxic ( Smiles )
8 0
4 years ago
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