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tester [92]
3 years ago
14

HELP ME WOTH QUESTION BELOW PLEASE​

Chemistry
1 answer:
IgorLugansk [536]3 years ago
7 0

tip

this is just a tip not the true answer but try to add the given number

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What is the mass of 4.44 moles of P2O5
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4 because I said so my dude djdjdndjd
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3 years ago
CH4 (g) yields C(g) + 4H (g) (reaction for expansion)
anyanavicka [17]

Answer:

Here's what I find.

Explanation:

\rm CH$_{4}$(g) $\, \rightleftharpoons \,$ C(g) + 4H(g)

\text{Same} =\begin{cases}1. & \text{The number of atoms of each element}\\2. & \text{The state of the methane molecules}\\4. &\text{The state of the carbon atoms}\\\end{cases}

\text{Different} =\begin{cases}3. & \text{The enthalpy change of the reaction}\\\end{cases}

The sign of ΔH changes when you reverse the reaction.  

5 0
4 years ago
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Calculate the volume of 8.87×10-2 M calcium hydroxide required to neutralize 15.0 mL of a 0.389 M hydrobromic acid solution. mL
Arte-miy333 [17]

Answer : The volume of calcium hydroxide is, 32.89 ml

Explanation :

Using neutralization law,

n_1M_1V_1=n_2M_2V_2

where,

n_1 = basicity of an acid = 1

n_2 = acidity of a base = 2

M_1 = concentration of hydrobromic acid = 0.389 M

M_2 = concentration of calcium hydroxide = 0.0887 M

V_1 = volume of hydrobromic acid = 15 ml

V_2 = volume of calcium hydroxide = ?

Now put all the given values in the above law, we get the volume of calcium hydroxide.

1\times 0.389M\times 15ml=2\times 0.0887M\times V_2

V_2=32.89ml

Therefore, the volume of calcium hydroxide is, 32.89 ml

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3 years ago
How do you tell if the sample of matter is solid,liquid or gas?
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Large sandbars along the coastline that form from deposition of
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Barrier island refers to the large sandbars along the coastline that form

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<h3>Features of a Sandy environment </h3>

The features of a sandy environment include the following:

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Read more about Barrier Island here brainly.com/question/15750467

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