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Elza [17]
3 years ago
12

Element 2 is: A) Cobalt B)Chlorine C)Calcium D)Carbon

Chemistry
1 answer:
saul85 [17]3 years ago
4 0

Answer:

D: Carbon

Explanation:

Carbon is the sixth element with a total of 6 electrons in the periodic table. Hence the atomic number Z = 6. The ground state electron configuration of carbon is 1s2 2s2 2p2. An excited state electron configuration of carbon is 1s2 2s1 2p3.

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Skin cells _____.
Gekata [30.6K]

Hey, the two answers that would best fit in the blank would be B.) reproduce by mitosis & D.) Have 46 chromosome pairs.


Sentence form: Skin cells reproduce by mitosis and have 46 chromosome pairs.

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3 years ago
When aqueous solutions of Li3PO4 and MgSO4 are mixed, Mg3(PO4)2 is a precipitate
Lesechka [4]

Answer:

Li2SO4

Explanation:

Balance the reaction of Li3PO4 + MgSO4 = Li2SO4 + Mg3(PO4)2 using this chemical equation balancer!

8 0
3 years ago
PLEASE HELP ASAP
Kruka [31]

The mass stays constant as a substance changes from a liquid to a gas.  

The Law of Conservation of Mass states that, in ordinary chemical reactions, mass is neither destroyed nor created.


That is, the mass of the reactants must equal the mass of the products.


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   1 g              1 g


If the mass of liquid water is 1 g, the mass of the water vapour must be 1 g.


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4 0
3 years ago
A booth renter is responsible for conducting all necessary business blank
tatyana61 [14]

Answer:

building and managing their own clients, purchasing supplies and keeping records

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5 0
3 years ago
Calculate the mass in grams of 3. 29 x 104 mol of lithium<br><br> Help please?
Sedaia [141]

<em>Answer </em>

<em>no</em><em>. </em><em>of</em><em> </em><em>moles</em><em> </em><em>=</em>

<em>\frac{mass \: {g} \: }{ \: molecular \: wight}</em>

so, <em>mass</em><em> </em><em>(</em><em>g</em><em>)</em><em>=</em><em> </em><em>no</em><em>. </em><em>of</em><em> </em><em>mol</em><em>es</em><em> </em><em>×</em><em> </em><em>molecular </em><em>wight </em>

Explanation:

Li molecular wight equal to 6.941

mass (g)=3.29×104 <em>mol</em><em> </em><em>×</em><em>6</em><em>.</em><em>9</em><em>4</em><em>1</em><em> </em><em>=</em><em>2</em><em>3</em><em>7</em><em>4</em><em>.</em><em>9</em><em>3</em><em>g</em><em> </em><em>of</em><em> </em><em>lithium </em>

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3 years ago
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