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vovikov84 [41]
3 years ago
7

Sentences for chemical energy

Chemistry
1 answer:
Aneli [31]3 years ago
4 0
Chemical energy can be either renewable or nonrenewable
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Equation for the reaction btn nitric acid and metal X whose valence is 3​
viva [34]
(a) Reaction of nitric acid with non-metal:
C+4HNO
3
​
⟶CO
2
​
+2H
2
​
O+4NO
2
​

S+6HNO
3
​
⟶H
2
​
SO
4
​
+2H
2
​
O+6NO
2
​

(b) Nitric acid showing acidic character:
K
2
​
O+2HNO
3
​
⟶2KNO
3
​
+H
2
​
O
ZnO+2HNO
3
​
⟶Zn(NO
3
​
)
2
​
+H
2
​
O
(c) Nitric acid acting as oxidizing agent
P
4
​
+20HNO
3
​
⟶4H
3
​
PO
4
​
+4H
2
​
O+20NO
2
​

3Zn+8HNO
3
​
⟶3Zn(NO
3
​
)
2
​
+4H
2
​
O+2NO

hope that helps you please mark brainliest
3 0
2 years ago
I NEED HELP ASAP!!!!<br><br><br><br> ITS DUE IN A FEW MINUTES!!!!
OleMash [197]

Answer:

The Sun and the planets were born from a cloud of gas and dust called the solar nebula 4.6 billion years ago. The collapse of the solar nebula was most likely triggered by a shock wave from a nearby supernova explosion. The Sun formed in the center, with the planets surrounding it in a thin disk.

Explanation:

6 0
2 years ago
As time goes on specimens in the fossil record become more
Anika [276]

Answer:

complex

Explanation:

becaause it fits in the words equation I hoped i helped

4 0
2 years ago
139%
GaryK [48]

<u>Answer:</u>

The percent composition of this compound is 94%

<u>Explanation:</u>

The reaction can be formed as

2 \mathrm{Fe}+3 \mathrm{Cl}_{2} \rightarrow 2 \mathrm{FeCl}_{3}

\frac{\text { Weight of } \mathrm{Cl}_{2}}{\text { 3* Molar Mass of } \mathrm{Cl}_{2}}=\frac{\text { Weight of } \mathrm{Fe}}{2 * \text { Molar Mass of Fe }}

\frac{\text { Weight of } \mathrm{Cl}_{2}}{3 *(2 * 35.5)}=\frac{3.56}{2 * 55.8}

\text { Weight of } C l_{2}=\frac{3.56 * 3 * 71}{2 * 55.8}=6.79 \mathrm{g}

\mathrm{n}\left(\mathrm{Cl}_{2}\right)=\mathrm{m}\left(\mathrm{Cl}_{2}\right) / \mathrm{M}\left(\mathrm{Cl}_{2}\right)=6.79 / 71=0.1 \mathrm{m}

\mathrm{n}(\mathrm{Fe})=\mathrm{m}(\mathrm{Fe}) / \mathrm{M}(\mathrm{Fe})=3.56 / 55.8=0.06 \mathrm{m}

Based on no. of iron reacted,  

\mathrm{n}(\text { moles of } \mathrm{Fe})=\mathrm{n}\left(\text { moles of } \mathrm{FeCl}_{3}\right)

n = m/M

\mathrm{m}\left(\mathrm{FeCl}_{3}\right)=\mathrm{n}^{*} \mathrm{M}=0.06^{*} 162.5=9.75 \mathrm{g}

% composition ofFeCl_3  

=  (9.75 / 10.39)^{*} 100

= 94%

6 0
3 years ago
What type of bond would form between two atoms of selenium? A. Double ionic bond B. Single ionic bond C. Single covalent bond D.
kirill115 [55]

The corret answer is D

3 0
3 years ago
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