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3 years ago

What element has 3 protons and neutrons

Chemistry

2 answers:

nika2105 [10]3 years ago

6 0

Answer:

Either helium or lithium

Explanation:

idk, i'm not sure lol

gregori [183]3 years ago

5 0

Answer:

i believe lithium dont clown me if im wrong

Explanation:

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During reflux and distillation, how is it possible to lose the product?

Alla [95]

What is reflux? isn't it like when u aren't able to digest something?

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3 years ago

Describe the pattern that thermal energy follows as it moves

mars1129 [50]

When you bring two objects of different temperature together, energy will always be transferred from the hotter to the cooler object. The objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal. We say that heatflows from the hotter to the cooler object. Heat is energy on the move. 
Units of heat are units of energy. The SI unit of energy is Joule. Other often encountered units of energy are 1 Cal = 1 kcal = 4186 J, 1 cal = 4.186 J, 1 Btu = 1054 J.

Without an external agent doing work, heat will always flow from a hotter to a cooler object. Two objects of different temperature always interact. There are three different ways for heat to flow from one object to another. They are conduction, convection, and radiation.

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3 years ago

Balance the following oxidation-reduction reactions, which take place in acidic solution, by using the "half-reaction" method.

LuckyWell [14K]

First identify which is being oxidized and reduced. In this case, the Mg is being oxidized and the Hg is being reduced.

Mg --> Mg+2

Hg+2 --> Hg+1

Then you have to balance each half reaction first with electrons before adding them together in one equation

$Mg$ ⇒ $Mg^{+2} + 2e^{-1}$

and

$2Hg^{+2} + 2e^{-1}$ ⇒ $Hg_{2} ^{+2}$

and then combine them together to form

$Mg + 2 Hg^{+2} + 2e$ ⇒ $Mg^{+2} + 2e ^{-} + 2 Hg^{+1} + 2 e^{-}$

It isn't necessary to keep the electrons but its essential to know how many there are in order to know how many are in the equation in order to calculate the reaction energy. Note: Add H+ and H2O to balance the H's and O's in acidic solution if needed.

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3 years ago

What is the lewis dot structure for Ca3P2 and Al2O3?

zlopas [31]

Answer:

The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.

Explanation:

The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.

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3 years ago

There are several ways to express solution concentration: dilute, concentrated, ppm, molarity, molality, normality. All of these

Hoochie [10]

Answer:

just pick b

Explanation:

8 0

3 years ago