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BabaBlast [244]
3 years ago
9

True or False? You can observe physical properties of matter without changing the identity of the substance

Chemistry
2 answers:
sdas [7]3 years ago
8 0
True it is true a

true
iren2701 [21]3 years ago
8 0
True And im typing this for charater limit
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Write balanced nuclear equations for the formation of five elements whose atomic number is between helium (2) and iron (26).
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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

<span> the equation for helium could be: D + T -> He + n. D is deuterium (H-2), T is tritium (H-3), and n symbolizes a neutron.</span>
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3 years ago
__H2 + __O2 --&gt; __H2O
nekit [7.7K]

Answer:

42.3moles

Explanation:

The chemical equation given in this question is as follows:

H2 + O2 → H2O

However, this equation is unbalanced, the balanced chemical equation is as follows:

2H2 + O2 → 2H2O

This equation shows that;

2 moles of hydrogen gas (H2) will produce 2 moles of water (H2O)

Hence, If 42.3 moles of water (H2O) are produced, 42.3 × 2/2

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krok68 [10]
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