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d1i1m1o1n [39]
3 years ago
10

All the atoms in Neon do not have to have 10 protons. True, or false?

Chemistry
2 answers:
Levart [38]3 years ago
5 0

Answer:

true

Explanation:

kramer3 years ago
5 0

Answer:

False.

Explanation:

The number of protons in an atom also places it on the periodic table- the 1st element on the periodic table is Hydrogen because it has 1 proton. If it had 2- it'd be Helium. Neon must have 10 protons to be #10 on the periodic table. (and to even be Neon)

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The temperature of 15.71 grams of gold rises from 32°C to 1,064°C, and then the gold melts completely. If gold’s specific heat i
antoniya [11.8K]

Answer:Total energy gained by 15.71 g is 3090.6471 joules

Explanation:

Given:

Q = heat gained by the 15.71 gram mass of gold

Q=mc\Delta T +m\Delta H_{fusion}

\Delta T=(T_{final}-T_{initial})=(1064^oC-32^oC)=1032^oC

c = specific heat capacity of gold = 0.1291joules/gram^oC

m = mass of gold =15.71 g

Q=15.71 g\times 0.1291 joules/gram^oC (1032^oC) +15.71 g\times 63.5 Joules/gram

Heat gained by gold = 2093.0621 Joules + 997.585 Joules

=3090.6471 joules

6 0
3 years ago
If you burn 23.4 g of hydrogen and produce 209 g of water, how much oxygen reacted?
Kitty [74]
The chemical reaction is expressed as:

2H2 + O2 = 2H2O

To determine the amount of oxygen used in the reaction, we use the amount of water produced and the relation of the substances in the reaction we do as follows:

209 g H2O ( 1 mol / 18.02 g ) ( 1 mol O2  / 2 mol H2O ) ( 32 g / 1 mol ) = 185.57 g O2
6 0
3 years ago
Claudia performed a flame test in her lab. The result of her flame test is shown here.
Masteriza [31]

Answer:

Where is the results and what is the question or is there a picture

Explanation:

6 0
3 years ago
Read 2 more answers
Given the following unbalanced equation:
Naily [24]

Answer:

3.4 mol C3H8

Explanation:

Balance: C3H8 + 5O2 →  3CO2 + 4H2O

Use a molar ratio to determine the amount needed.

13.6 mol H2O * 1 mol C3H8/4 mol H2O = 3.4 mol C3H8

6 0
2 years ago
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Calculate the molar mass for HCN.<br> 0.2703 g/mol<br> 2.703 g/mol<br> 27.03 g/mol<br> 270.3 g/mol
elixir [45]

Answer:

27.03 g/mol

Explanation:

Molar Mass of HCN

Mass of Hydrogen : 1.008

Mass of Carbon: 12.01

Mass of Nitrogen: 14.01

Molar Mass of HCN =

1.008 + 12.01 + 14.01=

27.03 g/mol

7 0
3 years ago
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