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
ElenaW [278]
3 years ago
8

Why don't animal cells need chloroplasts?

Chemistry
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer:

A. animals do not make their own food.

Explanation:

You might be interested in
For 20 points.... answer this
Allisa [31]
The answer is B.Let it sit
8 0
3 years ago
Read 2 more answers
Calculate the pH of a 0.50 M HIO. The Ka of hypoiodic acid, HIO, is 2.3x10–11.0.305.325.479.474.80
never [62]

Answer:

pH = 5.47

Explanation:

The equilibrium that takes place is:

HIO ↔ H⁺ + IO⁻

Ka = \frac{[H+][IO-]}{[HIO]} = 2.3 * 10⁻¹¹

At equilibrium:

  • [HIO] = 0.5 M - x
  • [H⁺] = x
  • [IO⁻] = x

<u>Replacing those values in the equation for Ka and solving for x:</u>

Ka=\frac{x^2}{0.5-x}=2.3*10^{-11} \\x^2=(2.3*10^{-11})(0.5-x)\\x^2=1.15*10^{-11}-2.3*10^{-11}x\\x^2+2.3*10^{-11}x-1.15*10^{-11}=0\\x=3.39*10^{-6}

Then [H⁺]=3.39 * 10⁻⁶, thus pH = 5.47

7 0
3 years ago
A bulb is added to a circuit. When you place your hand near the bulb, it feels warm. The bulb in the circuit would most accurate
alex41 [277]

Answer:

C energy source

Explanation:

I got this right

8 0
3 years ago
Read 2 more answers
Do different paper towels have various types of adhesion <br> to water
yawa3891 [41]

Yes, depending on the thickness.

7 0
3 years ago
if the spin of one electron in an orbital is clockwise , what is the spin of the other electron in that orbital
nata0808 [166]

Here we have to get the spin of the other electron present in a orbital which already have an electron which has clockwise spin.

The electron will have anti-clockwise notation.

We know from the Pauli exclusion principle, no two electrons in an atom can have all the four quantum numbers i.e. principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (m) and spin quantum number (s) same. The importance of the principle also restrict the possible number of electrons may be present in a particular orbital.

Let assume for an 1s orbital the possible values of four quantum numbers are n = 1, l = 0, m = 0 and s = \frac{+}{-}\frac{1}{2}.

The exclusion principle at once tells us that there may be only two unique sets of these quantum numbers:

1, 0, 0, +\frac{1}{2} and 1, 0, 0, -\frac{1}{2}.

Thus if one electron in an orbital has clockwise spin the other electron will must be have anti-clockwise spin.    

6 0
2 years ago
Other questions:
  • Q- 30. The number of grams of solute
    9·1 answer
  • The time required for Earth to rotate once on it's axis
    12·2 answers
  • How does a sample of helium at 15 degree Celsius compare to a sample of helium at 215 K?
    12·2 answers
  • To make lemonade Erica dissolved 30 g of sugar in a certain amount of water. By what amount is the mass of water likely to incre
    15·1 answer
  • Which correctly describes the location and charge of the electrons in an atom
    7·1 answer
  • Is this true or false a line graph shows the relationship between three variables
    14·2 answers
  • If 23.7 g of Al(OH)3(s) are mixed with 29.5 g of H2SO4(s) and the reaction is run, answer the following questions:
    7·1 answer
  • How many total atoms are in v2o5
    6·1 answer
  • I need help in chemistry 10th grade (sophomore)
    6·2 answers
  • 20. 6th-grade question
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!