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
velikii [3]
3 years ago
14

Helpppppppppp!!!!!!!!!​

Chemistry
1 answer:
professor190 [17]3 years ago
3 0

Answer:

a

Explanation:

the solution is extremely acidic and will dissolve the zinc rod

You might be interested in
Bromothymol blue is an acid-base indicator that changes color around ph 7. adding a small amount of bromothymol blue to a basic
Ede4ka [16]
... in neutralization reactions, for example:

NaOH + HCl = NaCl + H₂O

2KOH + H₂SO₄ = K₂SO₄ + 2H₂O
6 0
3 years ago
Read 2 more answers
Which of these is a characteristic of science? (5 points) Question 1 options: 1) It cannot be reproduced by any scientist. 2) It
Alex17521 [72]

Answer:

3

Explanation:

It is based on empirical evidence

4 0
3 years ago
Based on the "Heating Curve for Wax," what is the boiling point for wax?
alukav5142 [94]
Looks like 340°C to me
4 0
3 years ago
Read 2 more answers
I need help please!Perform the following conversion. Make sure your answer has the correct number of significant digits.
Nuetrik [128]

Answer:

3220000

Explanation:

1kg=10^6 Gg

3.22×10^6

5 0
3 years ago
Derivative for tan(x)
Maksim231197 [3]

Answer:

  • sec² (x)

Explanation:

Use the trigonometric ratio definition of the tangent function and the quotient rule.

  • tan(x) = sin(x) / cos(x)

Quotient rule: the derivative of a quotient is:

  • [the denominator × the derivative of the numerator less the numerator × the derivative of the denominator] / [denominator]²

  • (f/g)' = [ g×f' - f×g'] / g²

So,

  • tan(x)' = [ sin(x) / cos(x)]'
  • [ sin(x) / cos(x)]' = [ cos(x) sin(x)' - sin(x) cos(x)' ] / [cos(x)]²

                                   = [ cos(x)cos(x) + sin(x) sin(x) ] / [ cos(x)]²

                                   = [ cos²(x) + sin²(x) ] / cos²(x)

                                   = 1 / cos² (x)

                                   = sec² (x)

The result is that the derivative of tan(x) is sec² (x)

4 0
3 years ago
Other questions:
  • Which solution is the most concentrated?
    6·1 answer
  • This happens in massive star which convert hydrogen into helium? ​
    6·1 answer
  • Explain how a heat pump is used to both heat and cool a building?
    8·2 answers
  • A rectangular prism of volume 84 cm3 has a mass of 760 g. What is the density of the rectangular prism?
    8·2 answers
  • A sample of glass bead weighs 34.5g. The beads are heated to 100.0C in a boiling water bath and poured into a beaker containing
    11·1 answer
  • How To Calculate The Structure Ofan Element?
    7·1 answer
  • What is the difference between an acid and a base? Give an example of each.
    11·1 answer
  • WILL MARK BRAINLIEST IF YOUR ANSWER IS CORRECT
    12·2 answers
  • 7. What measures are applicable in the context of Nepal to push energy crisis further. Describe any three points clearly.​
    10·1 answer
  • In the fall, how does the high pressure area<br> affect the hurricane?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!