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Volgvan
3 years ago
14

Help me I am stuck in science, click on this

Chemistry
2 answers:
Vinil7 [7]3 years ago
7 0
Do you own or can you just look up the Periodic Table of Elements? Literally all you need to do is count how many electrons there are and look for the number on the Periodic Table of Elements chart
Marta_Voda [28]3 years ago
4 0
First is hydrogen and second is oxygen
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What can be determined by the following diagrams?<br><br>plz don't guess​
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7 0
3 years ago
2H2 + O2 --&gt; 2H2OHow many moles of hydrogen gas are needed to produce 120g of water?
wlad13 [49]
<h2>Answer:</h2>

6.67moles

<h2>Explanations:</h2>

Given the balanced chemical reaction between hydrogen and oxygen expressed as:

2H_2+O_2\rightarrow2H_2O

First, you need to calculate the moles of water produced.

\begin{gathered} \text{Moles}=\frac{Mass}{\text{Molar mass}} \\ \text{Moles of water=}\frac{120}{2(1)+16} \\ \text{Moles of water}=\frac{120}{18} \\ \text{Moles of water}=6.67\text{moles} \end{gathered}

Based on stochiometry, 2 moles of hydrogen produces 2 moles of water, hence the moles of hydrogen that will be needed to produce 120g of water is 6.67moles

6 0
1 year ago
What intermolecular forces are present among molecules in dimethyl ether, CH3OCH3?
crimeas [40]

Answer:

London forces only

Explanation:

Dimethyl ether is a nonpolar organic compound. Remember that for nonpolar organic substances, London forces are the primary intermolecular forces present.

Since dimethyl ether is a nonpolar organic compound, then it has London forces as its major intermolecular force. Intermolecular forces hold molecules of a substance together in a given state of matter.

5 0
4 years ago
Which planet is considered to be the most earth like despite the fact it has the hottest surface temperature?
Kazeer [188]

Answer:

Venus

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4 0
3 years ago
Read 2 more answers
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