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3 years ago

7

Which chromosome cause apples to be a `paticular` color?

1 answer:

vlada-n [284]3 years ago

7 0

It's an allele not a chromosome

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In order to change the intensity of the light, you change the wavelength of the light.

Ivanshal [37]

Answer:

False.................

5 0

3 years ago

What environment will produce the largest crystal sizes?

VMariaS [17]

The pressure should be low as low pressure can melt the crystals easier way
According to Gay lussac's law pressure is directly proportional to temperature so temperature should be also low as it's general any thing need to be cooled down inorder to get crystallised
Now for amount of dissolved solids the solution should be super saturated like magma .It denotes that the particles present as solute must be greater than the solubility.
Cooling time also should be long inorder to give time to crystallization

3 0

2 years ago

Help can you match the answers to the definition PLZ Need this ASAP 30 points

Alchen [17]

Answer:

1-C

2-D

3-B

4-A

Explanation:

I think it is this if it is not , sorry!

8 0

3 years ago

Given the reaction to 2NaOH + H2 SO4 â Na2 SO4 + 2H2 O, what is the total number of grams of NaOH needed to react completely wit

vfiekz [6]

Answer:

4 moles, 160 g

Explanation:

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

For $H_2SO_4$ :-

Mass of $H_2SO_4$ = 196 g

Molar mass of $H_2SO_4$ = 98 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles= \frac{196\ g}{98\ g/mol}$

$Moles\ of\ Sulfuric\ acid= 2\ mol$

According to the given reaction:

$2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O$

1 mole of sulfuric acid reacts with 2 moles of NaOH

So,

2 moles of sulfuric acid reacts with 2*2 moles of NaOH

Moles of NaOH must react = 4 moles

Molar mass of NaOH = 40 g/mol

<u>Mass = Moles*molar mass = $4\times 40\ g$ = 160 g</u>

7 0

3 years ago

Which is a proper description of chemical equilibrium?

serg [7]

D) because both reactions are occurring at the same rate. They are not equal but their concentrations are constant.

3 0

3 years ago