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just olya [345]
4 years ago
8

Why does a hot water bottle feel warm? Options: Molecules in the hot water bottle are moving faster than molecules in the skin.

Molecules in the skin are moving faster than molecules in the hot water bottle.
Chemistry
2 answers:
marissa [1.9K]4 years ago
7 0

Answer:

Molecules in the hot water bottle are moving faster than the molecules of the skin.

Explanation:

When an object is heated, the molecules of that object move much faster than the room temperature object or a cold object. When the molecules move faster, the friction causes heat.

vova2212 [387]4 years ago
5 0

Answer:

the answer is none of the above the answer is that if w should pour the hot water in a bottle the heat will make molecules combine together that is what brought about heat

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which type of chemical bond would be formed between two elements having electron configuration of 1s2 2s2 2p6 3s2 and 1s2 2s2 2p
OLga [1]
The electron configuration
1
s
2
2
s
2
2
p
6
3
s
2
3
p
2
is the element Silicon.
The key to deciphering this is to look at the last bit of information of the electron configuration
3
p
2
.
The '3' informs us that the element is in the 3rd Energy Level or row of the periodic table. The 'p' tells us that the element is found in the p-block which are all of the Groups to the right of the transition metals, columns 13-18. The superscript '2' tells us that the element is found in the 2nd column of the p-block Group 14.
7 0
3 years ago
Nitrogen and water react to form nitrogen monoxide and hydrogen, like this: N2(g) + 2H2O(g) → 2NO(g) +2H2(g) Also, a chemist fin
Thepotemich [5.8K]

Answer:

Kc for this reaction is 0.43

Explanation:

This is the equilibrium:

N₂(g) + 2H₂O(g) → 2NO(g) +2H₂(g)

And we have all the concentration at equilibrium:

N₂: 0.25M

H₂ : 1.3M

NO: 0.33M

H₂: 1.2M

They are ok, because they are in MOLARITY. (mol/L)

Let's make the expression for Kc

Kc = ( [NO]² . [H₂]² ) / ([N₂] . [H₂O]²)

Kc = (0.33² . 1.2²) / (0.25 . 1.2²)

Kc = 0.4356

In two significant digits. 0.43

8 0
3 years ago
Find the volume of 20g of H₂ at STP<br><br>​
ANEK [815]

Answer:224

Explanation:

We should answer it with Stoichiometry

We say: 20 g H2× (1 mol/ 2g)× ( 22.4 lit/ 1 mol) = 224

Means: we have 20 grams and every 2g H2, equals to 1 mol of it and every 1 mol of H2, equals to 22.4 lit( because of STP)

hope you got this:)

6 0
3 years ago
Please Explain. Why does salt water boil at a lower temperature than tap water?
nexus9112 [7]
We observe that heat capacity of salted water we will find that it is less than pure water. We now that it takes less energy to increase the temperature of the salt water 1°C than pure water. Which means that the salted water heats up faster and eventually reaches to its boiling point first.
hope it helps
5 0
3 years ago
Help Asap!! I will try to mark Brainliest!✨
lbvjy [14]

If I remember correctly from my science class, it is Protons and Neutrons.

Hope this helps, if not, comment below please!!!

7 0
3 years ago
Read 2 more answers
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