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Nadusha1986 [10]
3 years ago
14

Help final grade!!!!!! A B C D

Chemistry
1 answer:
Lelechka [254]3 years ago
7 0
D - a negative ΔH means that energy is released and the reaction is exothermic.
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Bugaboo can be oxidised to a carboxylic acid by heating with acidified potassium manganate (VII). Give the name and structural f
Novosadov [1.4K]

Answer:

See below.

Explanation:

CH3CH2CH2CH2OH is butanol.

The carboxylic acid formed , butyric acid has the formula:

CH3CH2CH2COOH.

Structural formula:

       H     H    H       O                  

        |       |      |        ||                      

H  -  C  -  C  -  C   -  C  -  OH

       |       |       |    

      H     H     H

8 0
3 years ago
If 25 mL of a HCl solution of unknown concentration was neutralized with 10 mL of a 0.30 M NaOH solution, what was the original
QveST [7]

Answer:

0.12 M

Explanation:

Step 1: Write the balanced equation

NaOH + HCl ⇒ NaCl + H₂O

Step 2: Calculate the reacting moles of NaOH

10 mL of a 0.30 M NaOH solution react.

0.010L \times \frac{0.30mol}{L} = 3.0 \times 10^{-3} mol

Step 3: Calculate the reacting moles of HCl

The molar ratio of NaOH to HCl is 1:1. The reacting moles of HCl are 1/1 × 3.0 × 10⁻³ mol = 3.0 × 10⁻³ mol.

Step 4: Calculate the concentration of HCl

3.0 × 10⁻³ mol of HCl are in 25 mL of solution.

M = \frac{3.0 \times 10^{-3} mol}{0.025L} = 0.12 M

5 0
3 years ago
What is the volume of the sample at stp?
Yuki888 [10]
At stp the volume is 22.4 L .

hope this helps!
3 0
3 years ago
How many milliliters are in 425 g of bromine if the density of bromine is 3.12 g/cm3
arlik [135]

Answer:

<h2>136.2 mL</h2>

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 = 425

density = 3.12 g/cm³

We have

volume =  \frac{425}{3.12}  \\  = 136.2 \:  \:  {cm}^{3}

Since cm³ = mL

We have the final answer as

<h3>136.2 mL</h3>

Hope this helps you

7 0
3 years ago
In which types of cells must mutations occur in order for the mutation to be passed on to future generations?
Artyom0805 [142]

Answer:

The answer is option c which is gametes

5 0
2 years ago
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