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3 years ago

What is the first step in replication

1 answer:

4 0

the first major step for the dan replication to take place is the breaking of hydrogen bonds between bases of the two antiparallel strands

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90 grams of glucose, C6H12O6, is dissolved in 2 liters of solution. Determine the molarity (M).

Masja [62]

Answer:

0.25 M

Explanation:

The first step is to determine how many moles of glucose there are, which means first finding out the molar mass of glucose. Carbon has a molar mass of about 12, hydrogen 1, and oxygen 16, so the total molar mass of glucose is about 6(12)+12(1)+6(16)=180 grams. This means that 90 grams is half a mole. Half a mole of substance divided by two liters of solution is (1/2)/2=1/4, or a molarity of 0.25. Hope this helps!

7 0

4 years ago

Which of the following is a heterogeneous mixture?

masya89 [10]

The answer would be c a jar of mixed nuts.

8 0

3 years ago

Read 2 more answers

In an electrical circuit, the presence of a resistor limits the current and prevents

bearhunter [10]

True I believe because when the current circuit is at its limit it will be damaged

6 0

3 years ago

Read 2 more answers

Use the drop-down menus to complete each sentence. is moving the fastest. is standing still. started at the same location.

nikklg [1K]

Answer:

car a

car c

cars a and b

on egdenuity i just did it

Explanation:

4 0

3 years ago

The equilibrium constant is given for one of the reactions below.

Cerrena [4.2K]

Answer:

12.7551

Explanation:

The given chemical equation follows:

$2HD(g)\rightarrow H_2(g)+D_2(g)$

The equilibrium constant for the above equation is 0.28.

We need to calculate the equilibrium constant for the reverse equation of above chemical equation, which is:

$2H_2(g)+2D_2(g)\rightarrow 4HD(g)$

The equilibrium constant for the reverse reaction will be the reciprocal of the initial reaction.

If the equation is multiplied by a factor of '2', the equilibrium constant of the reverse reaction will be the square of the equilibrium constant of initial reaction.

The value of equilibrium constant for reverse reaction is:

$K_{eq}'=(\frac{1}{0.28})^2$

Hence, the value of equilibrium constant for reverse reaction is 12.7551.

3 0

4 years ago