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3 years ago

Answer the 2 questions

Chemistry

2 answers:

Ber [7]3 years ago

7 0

Answer:

there are no questions but hit me up if ya need me (discordAkashTheMissle07#3880)

Explanation:

FrozenT [24]3 years ago

6 0

Explanation:

...ñœñtíęñ do....ugugugg

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What is the relationship between relative size of an ion and its neutral atom and the charge on the ions?

Vsevolod [243]

With the addition of an electron causing a negative charge, an ion is larger than normal but with loss of an atoms electron, the positive ion is smaller. if the atom loses an electron, the ion is relatively smaller than the atom and it becomes positive. if the atom gains an electron, the ion is relatively bigger than the atom and it becomes negative.

6 0

3 years ago

Which equation represents the correct net ionic equation for the reaction between Ca(OH)2 and H2SO4?

Georgia [21]

Answer: The correct net ionic equation for the reaction is $2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)$

Explanation:

Net ionic equation is defined as the equations in which spectator ions are not included.

Spectator ions are the ones that are present equally on the reactant and product sides. They do not participate in the reaction.

The balanced molecular equation is:

$Ca(OH)_2(aq)+H_2SO_4(aq)\rightarrow CaSO_4(aq)+2H_2O(l)$

The complete ionic equation follows:

$Ca^{2+}(aq)+2OH^-(aq)+2H^+(aq)+SO_4^{2-}(aq)\rightarrow 2Ca^{2+}(aq)+SO_4^{2-}(aq)+H_2O(l)$

As calcium and sulfate ions are present on both sides of the reaction. Thus, they are considered spectator ions.

The net ionic equation follows:

$2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)$

Hence, the correct net ionic equation for the reaction is $2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)$

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3 years ago

Lilli draws a line around the center of a blown-up balloon and places it in a freezer. She predicts that the temperature of the

lord [1]

Answer:

ITs A simpile facts

Explanation:

because a baloon get bigger when hot air enters it so yall are welcome

8 0

4 years ago

Read 2 more answers

If a calcium atom can give off two electrons in a reaction with

Alenkinab [10]

Answer:

c. Ca3N2

Explanation:

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3 years ago

In a calorimeter, the temperature of 100g of water decreased by 10 degrees Celsius when 10g of ice melted. How much heat was abs

Crazy boy [7]

So use equation: ΔH = MCΔT

M = mass of water
C = waters specific heat capacity (4.18)
ΔT = the temp. change of the reaction

ΔH = 100 x 4.18 x 10 = 4180J or 41.8KJ

so the cube absorbed 4180J of energy

hope that helps

6 0

3 years ago

Read 2 more answers