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3 years ago

What is cis-3-Hexene?

1 answer:

7 0

cis-3-Hexene is a symmetrical cis-disubstituted alkene that can be prepared by the hydroboration of 3-hexyne followed by protonolysis

I got this from Sigmaaldrich.com.

Not my work.

Hope it helps

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If she traveled 10 m in 5 seconds, what was her average speed?

elena-14-01-66 [18.8K]

Average speed = distance traveled divided by time taken. so 10 divided by 5, which is 2. her average speed was 2m per second. hope this helps!

5 0

2 years ago

You’re probably familiar with the sour taste of acidic lemon juice and the slippery feel of alkaline (basic) soap. In fact, thes

Nimfa-mama [501]

Answer:

9.606 grams of citric acid are present in 125 mL of a 0.400 M citric acid solution.

Explanation:

Molarity : It is defined as the number of moles of solute present in one liter of solution. Mathematically written as:

$Molarity=\frac{\text{Moles of solute}}{\text{volume of solution in L}}$

Moles of citric acid = n

Volume of the citric acid solution = 125 mL =125 × 0.001 L= 0.125 L

(1 mL = 0.001L)

Molarity of the citric acid solution = 0.400 M

$0.400 M=\frac{n}{0.12 5L}$

n = 0.400 M × 0.125 L = 0.05 moles

Mass of 0.05 moles of citric acid :

$0.05 mol\times 192.12 g/mol=9.606 g$

9.606 grams of citric acid are present in 125 mL of a 0.400 M citric acid solution.

5 0

3 years ago

Which term describes the materials magma is made of?

Elis [28]

Answer:

I believe the answer is Molten

Explanation:

I did that quiz and got 100% :)

7 0

3 years ago

Read 2 more answers

What is the name of this compound

lys-0071 [83]

Answer:

horizontal

Explanation:

5 0

2 years ago

Two 10g blocks, one of copper and one of iron, were heated from 300 K to 400K (a temperature difference of 100 K).

12345 [234]

1) 385 J

2) 450 J

Explanation:

The amount of energy that must be absorbed by a certain substance in order to increase its temperature by $\Delta T$ is given by the equation:

$Q=mC\Delta T$

where

m is the mass of the substance

C is its specific heat capacity

$\Delta T$ is the increase in temperature of the substance

For the block of copper in this problem, we have:

m = 10 g is the mass

$C=0.385 J/gK$ is the specific heat capacity of copper

$\Delta T=400-300 = 100 K$ is the change in temperature

So, the energy absorbed by the block of copper is

$Q=(10)(0.385)(100)=385 J$

Similarly for the block of iron, the energy absorbed by the iron is given by

$Q=mC\Delta T$

where

m is the mass of the block of iron

C is its specific heat capacity of iron

$\Delta T$ is the increase in temperature of the block

Here we have:

m = 10 g is the mass of the block

$C=0.450 J/gK$ is the specific heat capacity of iron

$\Delta T=400-300 = 100 K$ is the change in temperature

So, the energy absorbed by the block of iron is

$Q=(10)(0.450)(100)=450 J$

6 0

2 years ago