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3 years ago

How does matter change from one state to another?

Chemistry

1 answer:

Rzqust [24]3 years ago

4 0

Heating up, mostly. Solid can be heated to liquid, then to gas, then eventually to plasma.

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Write a balanced net ionic equation showing only the particles involved in the reaction and balancing the charges.Pb(s) AgNO3aq)

Alexus [3.1K]

Answer:

Pb(s) + 2Ag+(aq) → 2Ag(s) + Pb2+(aq)

Explanation:

Step 1: The unbalanced equation

Pb(s) + AgNO3aq) → Ag(s) + Pb(NO3)2(aq)

Step 2: Balancing the equation

Pb(s) + AgNO3aq) → Ag(s) + Pb(NO3)2(aq)

On the right side we have 2x NO3, on the left side we have 1x NO3.

To balance the amount of NO3 on both sides, we have to multiply AgNO3 (on the left side) by 2.

Pb(s) + 2AgNO3aq) → Ag(s) + Pb(NO3)2(aq)

On the left side we have 2x Ag, on the right side we have 1x Ag.

To balance the amount of Ag on both sides, we have to multiply Ag (on the right side) by 2. Now the equation is balanced.

Pb(s) + 2AgNO3(aq) → 2Ag(s) + Pb(NO3)2(aq)

The net ionic equation, for which spectator ions are omitted - remember that spectator ions are those ions located on both sides of the equation - will look like this

Pb(s) + 2Ag+(aq) → 2Ag(s) + Pb2+

8 0

4 years ago

In the allene (H2C=C=CH2) molecule:

Marina86 [1]

Answer:

Option c

Explanation:

In the allene, $CH_2=C=CH_2$

Central atom forms two sigma bond and two pi bond.

Hybridization of central atom = sp

Hybridization of two terminal C = $sp^2$

Allene is a nonplanar molecules. This is because of the planes of two $CH_2$ groups which are twisted 90 ° to each other.

Therefore, the two H atoms on one C lie above and below the plane defined by the other $CH_2$ group.

3 0

3 years ago

Might be hard to read but i do not understand what the “K” means.

alexdok [17]

it means kinetic energy

6 0

4 years ago

Read 2 more answers

A student titrates 10.00 milliliters of hydrochloric acid of unknown molarity with 1.000 m naoh. it takes 21.17 milliliters of b

Dima020 [189]

Mole ratio for the reaction is 1:1
no of moles in NaOH that reacted= 1*21.17/1000=0.02117mols
molarity of HCl=0.02117*10/1000
=2.117M

4 0

4 years ago

imagine yourself to be a cloth or plastic product manufacturer and prepare a 'flyer/add' as "my fabric /product is the best pls

MrMuchimi

Incomplete question. However, I answered from a general perspective.

<u>Explanation:</u>

Note, a flyer is a piece of advertising leaflet that is usually posted in public spaces, consisting of captivating as well as persuasive message designs. Although there are also digital flyers that can be distributed electronically.

Since in the case we imagine you are a cloth or plastic product manufacturer, your ideal flyer may contain such captions as;

→ with [brand name]

YOUR BEAUTY IS AT ITS BEST!!!

→ LIVE THE MOMENT, EXPRESSION AT WORK!!!

4 0

3 years ago