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
djyliett [7]
3 years ago
6

Which of these is an acid?

Chemistry
2 answers:
dolphi86 [110]3 years ago
6 0

Answer:

3) Vinegar

Step-by-step explanation:

Vinegar is a dilute solution of acetic acid. It has a<em> sour tast</em>e and <em>turns blue litmus red</em>.

1)  NaOH and 3) lye are <em>bases</em>. They both have a slippery feel and turn red litmus blue.

2) Water is <em>neutral</em>. It is neither an acid nor a base.

dmitriy555 [2]3 years ago
5 0
Vinegar is the only one that is an acid
You might be interested in
If 0.0203 g of a gas dissolves in
ololo11 [35]

Answer:

P2 = P1*n2 / n1

       =1.02 atm *0.008 moles / 0.00113 moles

      = 7.22 atm

∴the new pressure will be 7.22 atm

Explanation:

7 0
2 years ago
What is the force that opposes motion called?
34kurt

Answer:

Friction

Explanation:

Friction is the name of the force that opposes motion.

8 0
3 years ago
At Jim's auto shop, it takes him minutes to do an oil change and minutes to do a tire change. Let be the number of oil changes h
Juli2301 [7.4K]

Answer:

The total time that Jim needs to change x oil changes and y tire changes is less than 180 min.

The time needed for x oil changes is 12 * x.

The time needed for y tire changes is 18 * y.

The total time is the sum of the above times and needs to be less than 180 that is

12 * x + 18 * y < 180 divide both sides of equation by 6

12/6 * x + 18/6*y < 180/6

2*x + 3*y < 30

2*x < 30 - 3*y divide both sides by 2 to get the inequality for x

x < 30/2 - 3/2*y = 15 - 1.5 y < 15 that is x < = 15

2*x + 3*y < 30

3*y < 30 - 2*x divide both sides by 3 to get the inequality for y

y < 30/3 - 2/3 *x = 10 - 2/3*x < 10 that is y < = 10

Also we can write x + y < x+ 3/2 * y < 15.

Explanation:

Jim's can do not more then 5 oil changes and not more then 10 tire changes or all together she can do not more then 15 total of oil and tire changes.

5 0
3 years ago
Eukaryotic plant and animal cells each have distinguishing characteristics. For example, plant cells have cell walls, while anim
kolezko [41]

Answer: well the answer is a

Explanation: how because I did that

3 0
3 years ago
Read 2 more answers
An endergonic reaction with a Δh and Δs can be changed into an exergonic reaction.
zheka24 [161]

Full question:

This question is incomplete, here it is completed:

An endergonic reaction with a ______ ∆H and a ______ ∆S can be changed into an exergonic reaction by decreasing the temperature.

Option A: negative, positive

Option B: negative, negative

Option C: positive, positive

Option D: positive, negative

Answer:

Option B: negative, negative

Explanation:

The change in free energy (ΔG) of a system for a constant-temperature process is

ΔG = ΔH - TΔS

free energy is the energy available to do work. Thus, if a particular reaction is accompanied by a release of usable energy (that is, <u>ΔG is negative</u><u>), it is said to be</u><u> exergonic</u>. On the other hand, if a reaction consumes energy (that is, <u>ΔG is positive</u><u>), it is said to be </u><u>endergonic</u>.

Looking at the equation, we can see that if ΔH is negative and ΔS is negative, then ΔG will be negative only when TΔS  is smaller in magnitude than ΔH. This condition is met when T is small.

ΔG = ΔH - TΔS

           -        -

This means that the reaction proceeds spontaneously at low temperatures. At high temperatures, the reverse reaction becomes spontaneous. An example of that would be the following reaction:

NH₃(g) + HCl(g) → NH₄Cl(s)

4 0
3 years ago
Other questions:
  • The question is what does it regulate. PLEASE HELP. 1 sentence for each will help
    9·2 answers
  • Simularities between nonmetals and metalloids?
    9·1 answer
  • If aqueous solutions of potassium chromate and barium chloride are mixed, a bright yellow solid (barium chromate) forms and sett
    13·1 answer
  • Calculate the pZn of a solution prepared by mixing 25.0 mL of 0.0100 M EDTA with 50.0 mL of 0.00500 M Zn2 . Assume that both the
    7·1 answer
  • Which compound will conduct electricity when it is dissolved in water?
    11·1 answer
  • Find the block labeled ? in Figure 2. What is its atomic number? How many valence electrons does it have? Which of the elements
    15·2 answers
  • Ipt Hydrogen and oxygen react to produce water. Which of the following is the correctly balanced chemical equation
    6·1 answer
  • What Happens When extra Solute is added to unsaturated ,saturated and supersaturated solution​
    11·1 answer
  • When hydrochloric acid is poured on limestone, the mixture fizzes, releasing a colorless, odorless gas. The equation for this ch
    15·1 answer
  • How many moles of Hydrogen gas will be produced if you start with 2.5 moles of Magnesium and an excess of Hydrochloric Acid give
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!