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3 years ago

HELP PLEASE!!!! WILL MARK BRAILIEST =(

Chemistry

2 answers:

erastovalidia [21]3 years ago

6 0

1) c
2) c
3) b

Have a great day

antoniya [11.8K]3 years ago

3 0

Answer:

Explanation:

1. Dominant Traits are always shown on the allele because it takes over

2. A mutualistic relationship are 2 organisms that work together. For example, the rhino and oxpecker, which the oxpecker eats the pests on the rhino, creating food for the bird and healthiness for the rhino

3. Plants and Animals Cells have a cell membrane but animals do not have a cell wall. The answer could also be golgi but B is the best answer

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Predict the product formed when the compound shown below undergoes a reaction with mcpba in ch2cl2. mcpba is meta-chloroperoxybe

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Alkenes on reaction with meta-chloroperoxybenzoic acid (MCPBA ) produces epoxides. When styrene is reacted with mCPBA it gives 2-phenyloxirane as shown below,

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3 years ago

Find the pH of HCl with a concentration of 0.00006M<br> Round to the nearest whole number

Tpy6a [65]

Answer:

4.22

Explanation:

pH stands for potential hydrogen. The letter “p” denotes potential and the letter “H” denotes hydrogen.

pH helps to find the acidity or alkalinity of an aqueous solution.

The number of hydrogen ions (protons) present in a solution is determined by the pH scale.

A pH greater than 7 makes the water more alkaline and a pH less than 7 makes the water more acidic.

$pH=-\log [H^+]=-\log [0.00006]=4.22$

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3 years ago

A specific steroid has a λmax of 257 nm and a molar absorptivity ε of 11 , 500 L mol − 1 cm − 1 . What is the concentration of t

joja [24]

Answer:

$7.83\times 10^{-6} M$ is the concentration of the compound in a solution.

Explanation:

Using Beer-Lambert's law :

Formula used :

$A=\epsilon \times C\times l$

Where:

A = absorbance of solution

C = concentration of solution

l = path length

$\epsilon$ = molar absorptivity coefficient

We have:

C = ? , l = 1.00 cm, A = 0.090

$\epsilon = 11,500 L/(mol cm)$

$C=\frac{A}{\epsilon l}=\frac{0.090}{11,500 L/(mol cm)\times 1.00 cm}$

$C=7.83\times 10^{-6} M$

$7.83\times 10^{-6} M$ is the concentration of the compound in a solution.

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4 years ago

What discovery led j.j Thomson to decide that atoms were not indivisible but are actually composed of smaller parts?

Setler79 [48]

Answer:

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Explanation:

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4 years ago

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3 years ago