CHEMISTRY MIDDLE SCHOOL

What is the formula for the conjugate base formed by the following acid
HCN

Answers

Answer 1
Answer:

Answer:

HCN - Hydrogen cyanide The conjugate acid of CN- is HCN. HCN stands for hydrogen cyanide. The conjugate acids are a combination of a strong acid and a low base.

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Answers

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Consider the equation: 2NO2(g) N2O4(g). Using ONLY the information given by the equation which of the following changes would increase the molar concentration at equilibrium of the product N2O4(g)?increase the pressure
increase the temperature
decrease the concentration of NO2(g)
decrease the temperature
decrease the pressure

Answers

I believe the correct answer is the first option. To increase the molar concentration of the product N2O4, you should increase the pressure of the system. You cannot determine the effect of changing the temperature since we cannot tell whether it is an endothermic or an exothermic reaction. Also, decreasing the number of NO2 would not increase the product rather it would shift the equilibrium to the left forming more reactants. The only parameter we can change would be the pressure. And, since NO2 takes up more space than the product increasing the pressure would allow the reactant to collide more forming the product.

The answers A. increase the pressure

Explanation:

Standard reduction potentials are based on which element?A.
helium
B.
hydrogen
C.
lithium
D.
oxygen
E.
zinc

Answers

Answer: option B. Hydrogen

Explanation:

What is the wavelength of these waves?

Answers

it measure the distance between two consecutive waves within the phase.

NEED URGENT HELP WITH SCIENCE HOMEWORK. TRIED MY BEST TO FIGURE OUT BUT COULDNT. I WILL MARK YOU BRAINLIEST!!Morains are

depositional material covered up when a glacier forms

deposition material exposed after a glacier retreats

depositional material on top of a glacier

Which of the following is a feature of old glacial areas?


Limestone pavement


Deserts


Fjords

Which of the following is required for karst topography?

limestone rock is exposed to the surface

precipitation is adequate for the necessary chemical reactions to occur

both of the above

Which of the following causes most coastal erosion?

Wind

Waves

Biological activity

Which of the following statements is false about constructive waves on coastal shorelines?

Constructive waves carry sand to the shoreline

Compared waves deposit sand on the shoreline

Constructive waves are the major contributor to beach erosion

The fetch is the water that washes up on a shore after the breaking of a wave.
True

False

Wave refraction, the bending of waves as they approach an island, is the process responsible for the formation of bays.
True

False

The subtropical zones are ________ because they are influenced by dry descending air.

dry deserts

warm tropics

cold tundra

In humid climates, dense vegetation discourages wind erosion.
True

False

Answers

Answer:

1. a

2. c

3. b

4. d

5. True

6. True

7. Cold Tundra

8. False

Explanation:

These are the answers. I had the same questions on my science quiz.

What is the definition of states of matter

Answers

a state of matter  is one of  the distinct forms of matter  takes on.Four  states of matter are observable in every day life: solid,liquid,gas,plasma.
solid,liquid,gas,plasma.
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