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MaRussiya [10]
3 years ago
11

HELP PLEASE?! I will upvote all answers!

Chemistry
1 answer:
I am Lyosha [343]3 years ago
6 0
I believe the answer is a theory. 

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10. Is the identity of an element determined by its mass number or atomic number?<br> By omak
SpyIntel [72]

Answer:

atomic number

Explanation:

mass is determined by the protons and neutrons

5 0
2 years ago
1.Which of the following are outputs of Cellular Respiration? Choose all that apply *
svlad2 [7]
Oxygen

Photosynthesis 

ATP (chemical energy)
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3 years ago
Students conduct an experiment in which steel wool is burned in a closed test tube. The steel wool reacts with an amount of oxyg
Ksenya-84 [330]
The answer is 43.48g
6 0
3 years ago
Read 2 more answers
I don't know how to do this, pls help!
Aliun [14]
Cations from smallest to largest
Li⁺ ,Na⁺, K⁺ (from Periodic Table, the bigger number of period, the bigger size, of atom, so the bigger size of cation)

1) LiF smaller  cation then KF
1,036                                 <span>853
</span><span>The lattice energy increases as cations get smaller, as shown by LiF and KF.
</span><span>I think this one should be correct answer, because the compared substances have also the same anion, and we can compare cations in them.

2) The same cation Li , so wrong statement.

3)</span>The same cation Na , so wrong statement.

4) NaCl smaller cation then KF
  786                                   853
7 0
2 years ago
Read 2 more answers
Imagine that you helped to discover a new element; A=302;Z=119. How many protons, electrons, and neutrons are in each atom it th
oee [108]

Explanation:

Given that,

Mass number, A = 302

Atomic number, Z = 119

We know that, atomic number = no of protons

Protons = 119

Mass no. = No. of neutrons + No. of protons

302 = No. of neutrons + 119

No. of neutrons = 302 - 119

= 183

No. of electrons = No. of protons

= 119

5 0
2 years ago
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