2 years ago

What is the fundamental unit of surface water hydrology?

Chemistry

1 answer:

victus00 [196]2 years ago

3 0

The answer to this great question is C.Watershed

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PLEASE HELP ASAP Florida is bordered by water on three sides. Which property of water helps moderate Florida’s coastal areas?

KonstantinChe [14]

Answer:

The second one

Explanation:

4 0

2 years ago

Check all examples that would a chemical property.

fenix001 [56]

Answer:

d. reactivity to acid

f. reacts to air

Are chemical properties

Explanation:

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3 years ago

What region of the atom contains most of the atoms mass?

dimulka [17.4K]

Answer:

Nucleus

Explanation: it is the center of the atom, and contains protons and nuetrons

7 0

2 years ago

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the formula of calcium oxide is CaO. What is the formula of the ionic compound containing calium abd sulfate ions

sineoko [7]

Answer:

$CaS$

Explanation:

Hello!

In this case, since calcium's oxidation state when forming ionic bonds is +2 and sulfur's oxidation state when bonding those bonds is -2, for the required formula we write:

$Ca^{2+}S^{2-}$

Now, since they have the same charge number, we infer the ionic compound formed when they bond is calcium sulfide:

$CaS$

Best regards!

5 0

2 years ago

Neutral atoms of argon, atomic number 18, have the same number of electrons as each of the following items except: Cl- S -2 K+ C

irinina [24]

Answer:

Ne.

Explanation:

Neutral argon, atomic number 18, has 18 electrons.

Cl⁻:

Neutral atom of Cl, atomic number 17, has 17 electrons.

When it gains electron and be Cl⁻, then it has 18 electrons a neutral Ar.

S²⁻:

Neutral atom of S, atomic number 16, has 16 electrons.

When it gains 2 electrons and be S²⁻, then it has 18 electrons a neutral Ar.

K⁺:

Neutral atom of K, atomic number 19, has 19 electrons.

When it losses electron and be K⁺, then it has 18 electrons a neutral Ar.

Ca²⁺:

Neutral atom of Ca, atomic number 20, has 20 electrons.

When it losses 2 electrons and be Ca²⁺, then it has 18 electrons a neutral Ar.

Ne:

It is a noble gas that has 10 electrons.

So, the right choice is: Ne.

3 0

2 years ago