1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klemol [59]
3 years ago
6

Which enzyme "unzips" DNA by breaking hydrogen bonds that hold the bases together?

Chemistry
2 answers:
Vinvika [58]3 years ago
5 0

Answer:

a

Explanation:

KonstantinChe [14]3 years ago
4 0
A- *enzyme* helicase
You might be interested in
3) How does air pressure change?
Firlakuza [10]
<span>Air pressure decreases as you move higher in the atmosphere. Think of a column of air directly over your body. ... Just as air pressure decreases with altitude, so does the density of air.</span>
5 0
3 years ago
Read 2 more answers
Which development was a direct result of the
gladu [14]
"(2) increase in suburbanization" was a direct result of the <span>baby boom that followed World War II, but of course there were other factors that resulted as well. </span>
3 0
3 years ago
g In science, we like to develop explanations that we can use to predict the outcome of events and phenomena. Try to develop an
Marizza181 [45]

Answer:

See explanation

Explanation:

A titration involves the addition of a titrant to an analyte solution. It is a method of volumetric analysis.

When a particular volume of titrant is added, the colour changes to signal the end point of the reaction.

The point at which the colour changes is called the equivalence point. This is the point at which the amount of titrant added is just enough to completely neutralize the analyte solution.

Hence the volume NaOH that needs to be added to the beaker containing HCl to cause a colour change is the volume of NaOH that is just enough to completely neutralize the HCl solution.

4 0
3 years ago
Having been heated to 800 K , at some point the tank starts to leak. By the time the leak is repaired, the tank contains only ha
Liula [17]

Answer: The temperature of the gas reduced to 400K.

Explanation:

Stated that ; The pressure remains the same, that is initial and final pressure equals 1atm.

Applying Charles Law

V1/T1 = V2/T2

Initial volume V1 = 1

Final volume V2 = 1/2 (halved)

Initial temperature T1 =800K

Final temperature T2 = ?

(1/800) = (1/2)/T2

T2 = 800/2

T= 400K

Therefore, when the volume is halved, the temperature reduced also to half ( 400K)

3 0
3 years ago
Increased use of incineration is sometimes advocated as a safe way to dispose of chemical waste. But opponents of incineration p
pochemuha

Answer:

Option A is correct.

At the two incinerators at which leaks were reported, staff had had only cursory training on the proper procedures for incinerating chemical waste.

Explanation:

The main aim of the argument presented is to talk down the use of burning by incinerators method to dispose chemical waste. The argument presents great points in that there were 40 incidents at two existing commissioned incinerators in the last year where unexpected releases of dangerous chemical agents happened.

So, basically, the argument is all about how the high frequency of the unsuspected release of dangerous chemical agents should discourage this method of chemical waste disposal.

The argument then concluded that if more chemical waste are disposed using the burning by incinerator method, there will be more unsuspected release of dangerous chemicals.

We are then required to find the statement that most weakens the conclusion that there will be more toxic releases if more chemical waste are burned.

Analysing the Statements one by one

Statement A

This statement provides a possible reason for this high frequency of dangerous chemical releases. It states that the staff haven't been properly trained. So, this means that properly training the staff should most likely lead to lesser cases of toxic releases into the environment.

This is the statement that most weakens the conclusion.

Statement B

The conclusion wasn't about the incinerator method being the safest method. It was about whether increased incineration would lead to more toxic relaeses. So, this doesn't affect the conclusion.

Statement C

This statement says that incineration can be increased without building new incinerators by tapping into unused capacity at the old incinerators. Also doesn't affect rhe conclusion whether increased use of incineration will lead to more toxic leaks.

Statement D

This statement strengthens the argument; which is the opposite of what we're aiming to achieve.

Statement E

This statement hints that the toxic leaks do not have that much of a harmful effect because the toxic releases do not go beyond the property of the incinerator. This also doesnt tackle the conclusion about the frequency of leaks, it only addresses how not harmful the toxic leaks can be.

Hope this Helps!!!

5 0
3 years ago
Other questions:
  • 24.0 mL of a 0.120 M Ca(OH)2 solution is required to titrate 160 mL of an HCl solution to its equivalence point. Find the moles
    10·2 answers
  • Which word equation shows hydrogen reacting with oxygen to form water?
    6·1 answer
  • What does ClF3 stand for
    9·1 answer
  • Mercury (II) oxide decomposes to mercury and oxygen. In the chemical equation below, what is the subscript, x, on the oxygen equ
    6·1 answer
  • Kaillie was talking and was distracted as she stirred sugar into her tea. when she finally noticed, there was a few crystals of
    7·2 answers
  • A solution is
    11·1 answer
  • Answer truthfully:))​
    12·1 answer
  • Help pls now now now
    15·1 answer
  • CH3-CH=CH3-CH what is the name of this structure? <br>​
    10·1 answer
  • In a constant-pressure calorimeter, the temperature of 60.0 g of water increases by 4.50 °C. What amount of heat is transferred
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!