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4 years ago

Ba(CN) _ What is the compound

Chemistry

1 answer:

AleksandrR [38]4 years ago

7 0

Barium Cynanide is the compound

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When naming ionic compounds does the roman numeral after the metal cation tell you how many anions will be there?

murzikaleks [220]

Answer:

Explanation:

the roman numeral tells you that the metal is a transition metals. transition metals have more than one oxidation state.

8 0

3 years ago

Which of the following indicates a reaction with a positive ΔG? A. endergonic, spontaneous B. endergonic, not spontaneous C. exe

shtirl [24]

Answer: B. endergonic, not spontaneous

Explanation:

Endergonic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and $\Delta H$ for the reaction comes out to be positive.

The Gibbs equation is:

$\Delta G=\Delta H-T\Delta S$

$\Delta G$ = Gibb's free energy change

$\Delta H$ = enthalpy change

T = temperature

$\Delta S$ = entropy change

A reaction is non spontaneous when $\Delta G$ = Gibb's free energy change is positive

$+ve=\Delta H-T(-ve)$

$+ve=\Delta H+ve$

$\Delta H=+ve$

Thus the reaction has to be endergonic.

4 0

3 years ago

Need help fast!!

stepan [7]

Answer:

The answer is "5.18 ".

Explanation:

It's a question of chemistry. Therefore, the following solution is provided:

We will first determine the solution's pOH. The following can possible:

The concentration of Hydroxide ion $[OH^{-}] = 1.5\times 10^{-9}\ M$

$pOH =?\\\\pOH = -\log [OH^{-}]\\\\pOH = -\log 1.5\times 10^{-9}\\\\pOH = 8.82\\\\$

Furthermore, the pH of the solution shall be established. It was provided as follows:

$pOH = 8.82\\\\pH =?\\\\pH + pOH = 14\\\\pH + 8.82 = 14\\\\$

When collecting all the like terms:

$pH = 14 -8.82\\\\pH = 5.18$

Therefore, the solution of pH is 5.18.

8 0

3 years ago

Part f - question 6 of the us adopted and maintained a policy of minimal control of co2 emissions, what level would we expect it

nasty-shy [4]

It seems that you have missed the necessary details for us to answer this question, so I had to look for it. Anyway, here is the answer. If the US <span>adopted and maintained a policy of minimal control of co2 emissions, the level that we would expect its emissions to be in 2020 is that WE CAN'T TELL FROM THIS DATA. Hope this helps.</span>

7 0

4 years ago

Name four main Homologous series in organic chemistry...... plz hlp me

Akimi4 [234]

I believe the four series you are looking for are straight-chain alkanes, alkenes, and alkynes, and cycloalkanes. These all have the same repeating of CH2 as the base group, while alkenes have a double bond somewhere in the molecule, and alkynes a triple somewhere.

8 0

3 years ago