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Natasha_Volkova [10]
3 years ago
11

A hydrocarbon with vapour density

Chemistry
1 answer:
Dafna1 [17]3 years ago
4 0

Answer:

the answer is C4H10 I hope I helped

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what is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g​
LekaFEV [45]

Answer:

K8S4O16 or K8(SO4)4 depending on if the SO4 is supposed to represent sulfate or not

Explanation:

Find the molar mass of K2SO4 first:

2K + S + 4O ≈ 174 g/mol

Divide the goal molar mass of 696 by the molar mass of the empirical formula:

696 / 174 = 4

This means you need to multiply everything in the empirical formula by 4:

K2SO4 --> K8S4O16 or K8(SO4)4 depending on if the SO4 is for sulfate or not

4 0
2 years ago
This question has two parts btw
Oxana [17]

Answer:

the cold one is going to have a faster reaction time

Explanation:

5 0
3 years ago
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melamori03 [73]
Brass is an alloy, or a combination of two (or more) metals.
4 0
4 years ago
Find the volume of a gold ring that has a mass of 12.00 grams. The density of gold is 19.30 g/mL. The volume is
kozerog [31]

Answer:

<h3>The answer is 0.622 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass = 12 g

density = 19.30 g/mL

We have

volume =  \frac{12}{19.30}  \\  = 0.62176165...

We have the final answer as

<h3>0.622 mL</h3>

Hope this helps you

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3 years ago
A plant converts sunlight into stored energy is a physical or chemical change
guapka [62]
Chemical change :)))
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3 years ago
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