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bekas [8.4K]
2 years ago
10

If the density of lead is 11.34g/.what is the density in kg/l

Chemistry
1 answer:
solong [7]2 years ago
8 0

Answer:

0.01134kg

Explanation:

You divide by 1000 to get the kg

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All the following are oxidation–reduction reactions except:________
Blizzard [7]

Answer:

e. Mg₃N₂(s) + 6H₂O(l) → 3Mg(OH)₂(s) + 2NH₃(g)

Explanation:

All the following are oxidation–reduction reactions except:________

a. H₂(g) + F₂(g) → 2HF(g).  Redox. H is oxidized and F is reduced.

b. Ca(s) + H₂(g) → CaH₂(s).  Redox. Ca is oxidized and H is reduced.

c. 2K(s) + 2H₂O(l) → 2KOH(aq) + H₂(g).  Redox. K is oxidized and H is reduced.

d. 6Li(s) + N₂(g) → 2Li₃N(s).  Redox. Li is oxidized and N is reduced.

e. Mg₃N₂(s) + 6H₂O(l) → 3Mg(OH)₂(s) + 2NH₃(g). Not redox. All the elements have the same oxidation number

5 0
3 years ago
Heat energy is always released during what type of process?
Alinara [238K]
In the exothermic process.. Have a great day!
4 0
3 years ago
Select the atoms or ions drawn with valid Lewis dot structures. A) A carbon has a dot on top, right, bottom and to the left.a ni
charle [14.2K]

Answer:

B, C

Explanation:

The atoms or ions with the valid Lewis dot structures are B and C.

In A;

The Lewis structure of the carbon is correct. Each of the four dots represent the four valence electrons.

The  nitrogen with one dot on top, left and to the bottom and has a charge of minus 3 is wrong. For it to have a charge of -3 it must have 8 lewis dots ( two on the top, right, bottom and to the left)

The nitrogen with four dots (on top, right, bottom and to the left) is wrong.

In B;

An oxygen has two dots on top and bottom and one dot to the left and to the right. This is correct , the 6 dots represent the valence electrons of oxygen.

In C;

A carbon has two dots on top, right, bottom and to the left and a charge of plus four. This is correct because the charge indicates that it has gained four extra electrons so its valence electrons is now 8.

In D;

An oxygen has two dots on top, left and to the bottom and a charge of minus 2. This is wrong because the lewis dots are incomplete. Two dots are missing.

6 0
3 years ago
What is the density of a sample with a mass of 5250g and a volume of 4.5mL
vlabodo [156]

Answer:

1166.67

Explanation:

density=mass/volume

density= 5250/4.5

density=1166.67g/mL

5 0
3 years ago
Speed is how fast an object moves a certain distance within a length of time. How is speed calculated?
GREYUIT [131]

Answer s=d/t

Explanation:

That means speed equals distance divided by time. To solve for time use formula for time: t=d/s

6 0
3 years ago
Read 2 more answers
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