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3 years ago

Identify the type of reaction and the products. MgF2+KNO3 ->

Chemistry

1 answer:

Airida [17]3 years ago

7 0

Answer:

double replacement MgN2O6 + KF

Explanation:

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SEP Develop Models Each helium atom has two protons. Sketch models

RSB [31]

Protons and neutrons are located in the nucleus of the atom while the electrons move in the trajectory of the shell

<h3>Further explanation </h3>

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

Isotopes of Helium : helium-3 and helium-4

₂³He :

protons = 2

electrons=protons=2

neutron=mass number-atomic number=3-2=1

₂³He :

protons = 2

electrons=protons=2

neutron=mass number-atomic number=3-2=1

₂⁴He

protons = 2

electrons=protons=2

neutron=mass number-atomic number=4-2=2

Protons and neutron in the nucleus, electrons in the shell

6 0

3 years ago

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PilotLPTM [1.2K]

Answer:

i dont know i do this for points

Explanation:

4 0

3 years ago

Write balanced complete ionic equation for hcl(aq)+lioh(aq)→h2o(l)+licl(aq) express your answer as a chemical equation. identify

Svet_ta [14]

Explanation:

An equation is said to be balanced when the number of atoms on both reactant and product side are equal in number.

Whereas an equation where electrolytes in an aqueous solution are represented as dissociated ions is known as an ionic equation.

For example, $HCl(aq) + LiOH(aq) \rightarrow H_{2}O(l) + LiCl(aq)$ can be represented in ionic form as follows.

$H^{+} + Cl^{-} + Li^{+} + OH^{-} \rightarrow H_{2}O(l) + Li^{+} + Cl^{-}$

Now, cancelling the common ions present on both sides of the equation. The resulting, ionic equation will be as follows.

$H^{+} + OH^{-} \rightarrow H_{2}O(l)$

8 0

3 years ago

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g what would happen to the solubility of a gas in a solution if the pressure above the solution is increased

qaws [65]

Answer: The solubility of gas increases in a solution if the pressure above the solution is increased

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C=K_H\times p$

where,

C = solubility

$K_H$ = Henry's constant

p = partial pressure

As the solubility is directly proportional to the pressure, thus increasing the pressure increases the solubility.

3 0

3 years ago

Why does the radius of an atom decrease as you go across (from left to right) a period on the periodic table?

Grace [21]

Answer is D) <span>because you are adding positively charged protons, which pull in the outer electrons
</span>
The radius of an atom decreases because the atomic number, or number of protons is increasing. This not only pulls in the outer electrons due to the increasing positive charge, but also increases the mass of the atom, which has the effect of drawing electrons toward the nucleus.

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3 years ago

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