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svlad2 [7]
3 years ago
10

All atoms of the same element:

Chemistry
2 answers:
BabaBlast [244]3 years ago
6 0
Quick Answer

All atoms of the same element have the same number of protons in the nucleus

so the answer is C

Kitty [74]3 years ago
5 0
The correct answer would be C) Have the same number of protons.
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How many grams are in 4.07x10^15 molecules of calcium hydroxide
maksim [4K]

There are 5.01 × 10-⁷grams in 4.07 x 10¹⁵molecules of calcium hydroxide.

HOW TO CALCULATE MASS:

The mass of a substance can be calculated by multiplying the number of moles in the substance by its molecular mass.

However, given that the number of molecules in calcium hydroxide is 4.07 x 10¹⁵molecules, we need to calculate the number of moles in Ca(OH)2 as follows:

no. of moles of Ca(OH)2 = 4.07 x 10¹⁵ ÷ 6.02 × 10²³

no. of moles = 0.676 × 10-⁸

no. of moles = 6.76 × 10-⁹ moles.

Molar mass of Ca(OH)2 = 74.093 g/mol

Mass of Ca(OH)2 = 74.093 × 6.76 × 10-⁹ moles

Mass = 5.01 × 10-⁷grams.

Therefore, there are 5.01 × 10-⁷grams in 4.07 x 10¹⁵molecules of calcium hydroxide.

Learn more about how to calculate mass at: brainly.com/question/8101390?referrer=searchResults

5 0
2 years ago
The elements cu, o, la, y, ba, tl, and bi are all found in high-temperature ceramic superconductors. write the expected electron
timama [110]
Part 1)
Cu- <span>[Ar] 3d¹⁰4s¹     </span><span>atomic number: 29
</span>
<span>O-  [He] 2s2 2p<span>4     atomic number:8

</span></span>La- <span>[Xe] 5d¹ 6s²      </span><span>atomic number:57

Y-   </span><span>[Kr] 4d¹5s²      </span><span>atomic number:39
 
Ba- </span><span>[Xe] 6s²      </span><span>atomic number:56

Tl-  </span><span>[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹   </span><span>atomic number:81

Bi- </span> <span>[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³ </span>atomic number:83

Part 2)
You are able to this by consulting the periodic table and following this steps:
-Find your atom's atomic number;
<span>-Determine the charge of the atom (these were all uncharged)
</span><span>-Memorize the order of orbitals (s, d, p, d.. and how many electrons they can fit)
</span>-<span>Fill in the orbitals according to the number of electrons in the atom
- </span><span>for long electron configurations, abbreviate with the noble gases</span>




4 0
3 years ago
Describe where the "Reference Carbon" (the one that determines if the structure is D or L) is located in a carbohydrate with mor
tresset_1 [31]

Answer:

Farthest from the carbonyl carbon.

Explanation:

Reference carbon that determined the absolute D and L configuration is located farthest from the carbonyl carbon.

In other words, reference carbon is that assymentric carbon which is located farthest from the carbolyl carbon and has configuration similar to D- or L-glyceraldehyde isomers.

D and L configuration is decided by the direction of -OH group attached to the reference carbon.

In L-isomer, -OH group is attached to the left side of the reference carbon and in D-isomer, -OH group is attached to the right side of the reference carbon.

5 0
3 years ago
Is the following true or false? The energy stored in fuels can be used to generate electricity.
Serjik [45]
The answer is false....
6 0
3 years ago
Read 2 more answers
Help science po this
liberstina [14]
Answer: 1-Exhale 2-inhale 3-contracted diaphragm 4-relaxed diaphragm.
Step by step explanation: hope this helped! Have a great day.
3 0
3 years ago
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