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Elan Coil [88]
3 years ago
13

Scientists notice that many fish are dying in a local lake. Which onsite water quality data would they most likely gather to det

ermine the cause of the fish kill?
A. arsenic and cyanide levels

B.water level and surface area

C.biodiversity and water depth

D. dissolved oxygen and temperature
Chemistry
1 answer:
never [62]3 years ago
8 0

Answer:

D. (Dissolved oxygen and temperature)

Explanation:

Have a nice day and stay safe <3

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etermine the number of valence electrons for each of the atoms. Enter each answer as a numeral. For example, if an atom has two
Sav [38]

Answer:

1. 1

2. 2

3. 6

4. 8

Explanation:

Valence electrons can be defined as the number of electrons present in the outermost shell of an atom. Valence electrons are used to determine whether an atom or group of elements found in a periodic table can bond with others. Thus, this property is typically used to determine the chemical properties of elements.

1. Li is the symbol for the chemical element known as Lithium: it has 1 valence electron. The electronic configuration of lithium is 1s²2s¹

2. Mg is the symbol for the chemical element known as Magnesium: it has 2 valence electrons. The electronic configuration of magnesium is 1s²2s²2p63s²

3. O is the symbol for the chemical element known as Oxygen: it has 6 valence electrons. The electronic configuration of magnesium is 1s²2s²2p⁴.

4. Ne is the symbol for the chemical element known as Neon: it has 8 valence electrons.

7 0
3 years ago
How many electrons does hydrogen need to satisfy the octet rule?
quester [9]
Just 2 valence electrons.

Hydrogen already has one to start with, as well. With the exception of hydrogen and helium, all other atoms need 8 valence e-
4 0
3 years ago
I REALLY NEED HELP can someone help me please I’ll make you brainliest ! :)
Nikitich [7]

Answer:

C

Explanation:

All thing in option c is flammable

5 0
2 years ago
Read 2 more answers
What units should they have used in order to make the correct conversion
grandymaker [24]
We need to see your problem/question you’re talking about to answer it
5 0
3 years ago
If an atom has 35 protons in the nucleus, how many will it have orbiting nucleus
yan [13]
It will have 35 ''electrons'' . Basically the number of protons in the nucleus of an atom is always equal to the number of electrons but its just that protons are positively charged and electrons are negatively charged.  <span />
8 0
3 years ago
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