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3 years ago

Which of the following is soluble in water?

1 answer:

5 0

Solubility rules state that group one metals and Nitrates are always soluble. Rubidium is a group one metal, so Rubidium Nitrate, RbNO3, is soluble.

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BALANCING EQUATION<br> XC12(aq) + AgNO3(aq)<br> X(NO3)2(aq) +AgCl(s)

slava [35]

Answer:

XCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + X(NO3)2(aq)

8 0

3 years ago

Does sound travel faster in a warm room or a cold room?

yawa3891 [41]

Answer:

Sound is vibrations that travel through a medium, and which are then converted into electrical signals by our brain so that we interpret them as a noise that we hear. These vibrations consist of particles colliding with each other (this is why sound cannot travel through space; there are no particles). At warmer temperatures, the particles that make up air will move faster, so these collisions will happen more frequently. Therefore the vibrations occur more quickly, so sound travels faster and reaches our ears in a shorter amount of time.

The speed of sound can travel faster in hot air than it can in cold air. This is because the molecules of air can move even faster and the vibrations of the sound wave can transmit faster. Sound is a type of mechanical wave, meaning that it requires a medium to transmit energy. Mediums are any substance that has mass and takes up space, from the air in the room to the metal atoms in an iron fence.

Explanation:

hope that helps :)

3 0

3 years ago

Read 2 more answers

How does an atom change if all of its electrons are removed?

adelina 88 [10]

Answer:

The atom becomes positively charged.

5 0

4 years ago

Which element or compound has lost electrons in this oxidation-reduction reaction? 4li 2coo â†’ 2co 2li2o a. coo b. li2o c. li d

Nady [450]

Answer:

Correct option is C.

Explanation:

Such type of chemical reaction that involves a transfer of electrons between two species is known as oxidation-reduction or redox reaction.

Redox reaction is oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

For this reaction:

On reactant side:

Oxidation state of oxygen, cobalt, lithium = -2 ,+2, 0

While on product side of reaction:

Oxidation state of cobalt, oxygen, lithium = 0, -2, +1

Here, oxidation reaction take place because oxidation state of lithium is increased. While the oxidation state of cobalt in reducing, it is gaining electrons and so it undergoes reduction reaction.

So, Option C (Li) is correct.

Learn more about oxidation-reduction reaction:

brainly.com/question/13293425

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7 0

2 years ago

What size container do you need to hold 0.0459 mol of N2 gas at stp

insens350 [35]

Answer:

The size of the container needed is 1,03 liters

Explanation:

We use the formula PV=nRT. The STP conditions correspond to 1 atm of pressure and 273 K of temperature.

PV=nRT V=(nRT)/P

V= (0,0459 mol x 0,082 l atm/ K mol x 273K)/1 atm= 1,0275174 liters

3 0

4 years ago