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ziro4ka [17]
3 years ago
9

The temperature of a sample of iron with a mass of 10.0g changed from 50.4 degrees C with the release of 114J. What is the speci

fic heat of iron ?
Chemistry
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

c = 449 \:  j   \: kg  {}^{ - 1}  \: k {}^{ - 1}

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What exactly is a proton? Is it a member of the periodic table?
Pavel [41]

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

4 0
3 years ago
29. Ammonia is formed with one nitrogen and three hydrogen atoms. What is the electron configuration of nitrogen? How
masya89 [10]

Answer:

<u>One lone-Pair is present in Ammonia</u>

<u></u>

Explanation:

The number of valence electron in N = 5

The number of Valence electron in H = 1

The formula of ammonia = NH3

Total valence electron in ammonia molecule = 5 +3(1) = 5+3 = 8

The lewis structure suggest that :

Nitrogen completes its octet by sharing the electron pair with 3 hydrogen atoms.

3 electron of Nitrogen are involved in sharing with Hydrogen

So,<u><em> remaining two electron are left non-bonded</em></u> . Hence they exist as lone- pair

So, there is only 1 lone pair in the ammonia molecule .

The shape of NH3 is bent according to VSEPR theory . This is so because the presence of 1 lone pair causes more repulsion and occupy more space.

Thus the lone pair is changing the shape of the ammonia molecule . It also increase the dipole moment of the molecule , which gives polarity to it.

5 0
3 years ago
The majority of energy used in industrialized countries is produced using renewable resources.
vaieri [72.5K]

Answer:

The answer is FALSE

Explanation:

I took the test and it was false,

also if it was true then in industrialized countries would be more eco-friendly and there wouldn't be a huge hole in our ozone layer. and no more wars over oil.

7 0
3 years ago
Pb + Fe(SO4) =Pb(SO4) + Fe what type of reaction is this ?
VikaD [51]

Answer:

Single replacement

Explanation:

3 0
2 years ago
Calculate the energy of a quantum of radiant energy with a frequency of 5.00x1011/s
Aloiza [94]
5.00 x  1011/s = 5.05500kilohertz
7 0
3 years ago
Read 2 more answers
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