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Andrew [12]
4 years ago
15

Which human body resembles mitochondria

Chemistry
1 answer:
marusya05 [52]4 years ago
3 0
I think its the brain or muscles... sorry if im wrong .
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If an element is found in group 2 on the periodic table, what can you infer about its valence electron number, reactivity, and o
gtnhenbr [62]
If an element is found in group 2 on the periodic table, you can infer that it has two valence electrons, it has a high reactivity (alkaline earth metals), and the oxidation number is 2+
4 0
3 years ago
What are three signs that a chemical change has taken place
vladimir1956 [14]
Three signs that a chemical change has taken place is 1) color change 2) formation of gas bubbles 3) a change in temperature ( if you have ever bleached your hair the reason why it is warm to the touch is because of a chemical reaction)
8 0
3 years ago
Complete the following chemical equations BaCl2.2H2O
balandron [24]

<u>Answer:</u>

<em>BaCl_2.2H_2 O > BaCl_2  + 2H_2 O</em>

<em />

<u>Explanation:</u>

Balancing is making the number of atoms of each element same on both the sides  (reactant and product side).

To find the number of atoms of each element we multiply coefficient \times subscript  

For example 5 Ca_1 Cl_2 contains  

5 × 1 = 5 ,Ca atoms and

5 × 2 = 10, Cl atoms  

If there is a bracket in the chemical formula  

For example 3Ca_3 (P_1 O_4 )_2 we multiply coefficient × subscript × number outside the bracket to find the number of atoms  

(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )

So

3 × 3 = 9 , Ca atoms  

3 × 1 × 2 = 6, P atoms  

3 × 4 × 2 = 24, O atoms are present.

So

Let us balance the equation given

BaCl_2.2H_2 O > BaCl_2  + 2H_2 O

(balanced  equation)

<u>Reactant side   </u>            <u>Elements</u>               <u>Product side </u>

1                                         Ba                                1

2                                         Cl                                 2

4                                          H                                 4

2                                          O                                 2

<u><em></em></u>

<u><em> Balanced!!! </em></u>

5 0
3 years ago
Gizmo Covalent Bonds
uranmaximum [27]

this aint in question form so  can answer......

8 0
3 years ago
The mass of a quantity of NiCl2
Gennadij [26K]
Not sure, is it <span>:
</span>B.
<span> 1.9 3 1027 NiCl2
formula units</span>
3 0
3 years ago
Read 2 more answers
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