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
Alisiya [41]
3 years ago
11

Which option explains how purple pigments make some flower petals purple?

Chemistry
1 answer:
raketka [301]3 years ago
3 0

Many of the actual chemicals in flower petals that give them their different colors are called anthocyanins. These are water-soluble compounds that belong to a bigger class of chemicals known as flavonoids. Anthocyanins are responsible for creating the colors blue, red, pink, and purple in flowers.

You might be interested in
When the volume of a gas is
Cerrena [4.2K]

Answer:

THE NEW VOLUME OF THE GAS IS 406 mL WHEN THE TEMPERATURE CHANGES FROM 765 K TO 315 K.

Explanation:

When the temperature changes from  765 K to 315K, the volume has changed from 986 mL to?

V1 = 986 mL = 0.986 L

T1 = 765 K

T2 = 315 K

V2 = unknown

Using Charles' equation of gas laws;

V1 / T1 = V2 / T2

Making V2 the subject of the formula:

V2 = V1 T2 / T1

V2 = 0.986 * 315 / 765

V2 = 0.406 L

V2 = 406 mL

So therefore, the volume of a gas changes from 986 mL to 406 mL as a result of a change in temperature from 765 K to 315 K.

7 0
3 years ago
Please help me with these two
Anna [14]
They exist in the outer orbitals
3 0
3 years ago
A phospholipid has a glycerol attached to a phosphate group and two fatty acid chains. The head is hydrophilic, and the tail is
Rzqust [24]

Answer:

Because they are normally dissolved in water

Explanation:

The phospholipids can act as molecules that are carry inside or outside the cells, to transport it they are dissolved in another hydrophilic media, in this way the hydrophilic part can be in the outside part of the group of moleucles stick together like in cell membranes that are conformed by a double lipidic layer, in which the hydrophobic part it in the inside part. The cells normally are surrounded by different water solutions as the blood or another solutions.

7 0
3 years ago
Calculate the pH of a 2.0 M H2SO4 solution.
noname [10]
 <span>H2SO4 gives 2 moles oh H+ per mole of acid 

[H2SO4] = 2M so [H+] = 4M 

pH = -log(4) = -.6 

Therefore, the pH </span><span>of a 2.0 M H2SO4 solution is -0.6
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
5 0
4 years ago
Read 2 more answers
What is the solubility product (or ion-product), Ksp, expression at equilibrium for calcium phosphate, Ca3(PO4)2?
Gnoma [55]

Answer : The expression for solubility constant for this reaction will be,

K_{sp}=[Ca^{2+}]^3[PO_4^{3-}]^2

Explanation :

Solubility product : It is defined as the product of the concentration of the ions  that present in a solution raised to the power by its stoichiometric coefficient in a solution of a salt. This takes place at equilibrium only.

The solubility product constant is represented as, K__{sp}.

The dissociation of calcium phosphate is written as:

Ca_3(PO_4)_2\rightleftharpoons 3Ca^{2+}+2PO_4^{3-}

The expression for solubility constant for this reaction will be,

K_{sp}=[Ca^{2+}]^3[PO_4^{3-}]^2

4 0
3 years ago
Other questions:
  • A compound with the molecular formula C10H10O4 produces a 1H NMR spectrum that exhibits only two signals, both singlets. One sig
    15·1 answer
  • Calculate molality of a 2m aq solution of sodium chloride with density 1.35g/mol
    7·1 answer
  • What is the mass of 2.25 moles of manganese(lv) sulfide(MnS2)
    8·2 answers
  • When a pure substance was heated a chemical reaction occurred, and a student obtained another solid and a gas, each of which was
    6·1 answer
  • Consider the cell described below at 287 K: Pb | Pb2+ (1.07 M) || Fe3+ (2.13 M) | Fe Given the standard reduction potentials fou
    6·1 answer
  • A sample of gas in a syringe has a volume of 9.66 mL at a pressure of
    12·1 answer
  • I need help on this question?
    14·2 answers
  • Name the following compounds CaSe <br><br> don’t use common names such as water or salt
    10·1 answer
  • The apparatus which cools the gas is called a ______. This changes a gas into a liquid.
    6·1 answer
  • HELP ASAP !!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!