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3 years ago

10. What two pieces of information does a chemical formula give?

Chemistry

2 answers:

Ad libitum [116K]3 years ago

8 0

It gives you the element and compounds

antoniya [11.8K]3 years ago

6 0

elements and compounds

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AP CHEM answer and i will give brainliest, image attached

scoundrel [369]

Answer:

what is this i dont know what kind of math this is

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2 years ago

What is the water table

shusha [124]

Answer:

water table is the level below which the ground is saturated with the water

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4 years ago

An isotope of hydrogen commonly referred to as heavy water is

muminat

Answer:

Heavy water is a compound that is made up of oxygen and deuterium, a heavier isotope of hydrogen which is denoted by ‘ 2 H’ or ‘D’. Heavy water is also called deuterium oxide and is denoted by the chemical formula D 2 O.

Density: 1.107 g/mL

Dipole moment: 1.87 D

Heavy Water (Deuterium Oxide): D2O

Molecular Mass: 20.02 grams/mole

Explanation:

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3 years ago

An area experiences lack of moisture and precipitation. It also experiences high temperature and winds. Which severe weather eve

ddd [48]

Answer:

Drought

Explanation:

It would get really dry because no moisture and the lakes would dry up bc of lack of water

6 0

3 years ago

Q10.An aqueous solution contains 5.00x10-2 mol/L of Ca2+ and 7.00x10-3 mol/L of SO4

romanna [79]

Answer:

The precipitate will form.

Explanation:

Let's write the equilibrium expression for the solubility product of calcium sulfate:

$CaSO_4(s)$ ⇄ $Ca^{2+}(aq)+SO_4^{2-}(aq)$

The solubility product is defined as the product of the free ions raised to the power of their coefficients, in this case:

$K_{sp}=[Ca^{2+}][SO_4^{2-}]=10^{-4.5}$

Our idea is to find the solubility quotient, Q, and compare it to the K value. A precipitate will only form if Q > K. If Q < K, the precipitate won't form. In this case:

$Q_{sp}=[Ca^{2+}][SO_4^{2-}]=5.00\cdot10^{-2} M\cdot7.00\cdot10^{-3} M=3.5\cdot10^{-4}$

Now given the K value of:

$K_{sp}=10^{-4.5}=3.2\cdot10^{-5}$

Notice that:

$Q_{sp}>K_{sp}$

This means the precipitate will form, as we have an excess of free ions and the equilibrium will shift towards the formation of a precipitate to decrease the amount of free ions.

6 0

4 years ago