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VLD [36.1K]
3 years ago
4

Scientists can identify an element by looking at the structure of a single A.atom. B.molecule. C.electron. D.neutron.

Chemistry
1 answer:
qwelly [4]3 years ago
7 0

Answer:

the answer is A

Explanation:

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Earth has seasons because ? A . It rotates on its axis B. The distance between earth and the sun changes C. It’s axis it tilted
Nataly_w [17]
Its c 
hope this helps

8 0
3 years ago
The liquid that condenses during distillation is called?
AVprozaik [17]

Answer:

the answer is distillate

3 0
3 years ago
Perform each of the following unit conversions using the conversion factors given below: 1 atm = 760 mmHg = 101.325 kPa
Alenkasestr [34]
  unit  coversation
1.429  atm  - 1086mmhg

9361 pa-9.36 KPa  -  70.21  mmhg

725 mmhg -0.95 atm-  96.26  kpa

calculation

(a)     1 atm =  760  mmhg
    1.429 atm = ?
1.429  x760/1 = 1086.34  mm hg

(B)   1  mmhg  =  101.325  kpa
              ?      =9361 KPa
9361   x1 /101.25  =70.21  mmhg

760  mm hg= 101.325 KPa
70.21  mm hg=?

70.21  x101.325/760  = 9.36 Kpa

(C ) 1 atm = 760 mmhg
       ?   =  725
= 725 x1/ 760=0.95  atm


1 atm = 101.325 kpa
0.95  =?

0.95 x101.325/1 = 96.26 KPa
5 0
4 years ago
Read 2 more answers
Describe the redox reaction. Check all that apply 2AI(s) + 3ZnCI2(g) → 3Zn(s) + 2AICI3(aq).
Inga [223]

Answer:

Zinc is reduced.

The oxidation number of chlorine does not change.

Aluminum is oxidized.

Explanation:

  • For the reaction:

<em>2AI(s) + 3ZnCI₂(g) → 3Zn(s) + 2AICI₃(aq). </em>

<em></em>

  • For the elements in the reactants side:

Al has (0) oxidation state and converted to (+3) oxidation state in the products (AlCl₃), which means Al is oxidized and it is the reducing agent.

So, we can check that: Aluminum is oxidized.

Zn has the oxidation state (+2) in the reactants side (ZnCl₂) and converted to (0) in the products side (Zn), which means that Zn is reduced and it is the oxidizing agent.

So, we can check that: Zinc is reduced.

<em>and can not check: Zinc is the reducing agent.  </em>

<em />

The oxidation state of Cl does not change, it is the same in both sides (-1).

So, we can check: The oxidation number of chlorine does not change.

<em>and can not check: Aluminum atoms transfer electrons to chlorine atoms. </em>

<em />

  • So, the choices will be:

<em>Zinc is reduced.</em>

<em>The oxidation number of chlorine does not change.</em>

<em>Aluminum is oxidized. </em>

4 0
4 years ago
Read 2 more answers
3 CACO3+2H3PO4&gt;CA3(PO4)2+3 CO2+3 H2O
8090 [49]

Answer:

its hto-567-st-3=56+78=103

Explanation:

so103 is yo answer

8 0
3 years ago
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