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
lianna [129]
3 years ago
8

How many lunar phases are there?

Chemistry
1 answer:
trapecia [35]3 years ago
6 0

Answer:

There are 8 different lunar phases

Explanation:

1) New moon

2) Waxing crescent

3) First quarter

4) Waxing gibbous

5) Full moon

6) Waning gibbous

7) Third quarter

8) Waning crescent

You might be interested in
Can someone please helpppp!
dolphi86 [110]

Answer: A

Aloha is the one that loses a helium

5 0
3 years ago
What would be the composition and ph of an ideal buffer prepared from lactic acid (ch3chohco2h), where the hydrogen atom highlig
Mashutka [201]

Answer:

P_H =2.86

c=1.4\times 10^{-4}

Explanation:

first write the equilibrium equaion ,

C_3H_6O_3  ⇄ C_3H_5O_3^{-}  +H^{+}

assuming degree of dissociation \alpha =1/10;

and initial concentraion of C_3H_6O_3 =c;

At equlibrium ;

concentration of C_3H_6O_3 = c-c\alpha

[C_3H_5O_3^{-}  ]= c\alpha

[H^{+}] = c\alpha

K_a = \frac{c\alpha \times c\alpha}{c-c\alpha}

\alpha is very small so 1-\alpha can be neglected

and equation is;

K_a = {c\alpha \times \alpha}

[H^{+}] = c\alpha = \frac{K_a}{\alpha}

P_H =- log[H^{+} ]

P_H =-logK_a + log\alpha

K_a =1.38\times10^{-4}

\alpha = \frac{1}{10}

P_H= 3.86-1

P_H =2.86

composiion ;

c=\frac{1}{\alpha} \times [H^{+}]

[H^{+}] =antilog(-P_H)

[H^{+} ] =0.0014

c=0.0014\times \frac{1}{10}

c=1.4\times 10^{-4}

6 0
3 years ago
Which part of a feedback mechanism causes change to make up for the departure from the set point? A. sensor B. effector C. respo
koban [17]
I would have to say C. Response.
5 0
4 years ago
Read 2 more answers
Is there a similarity between this investigation and the human body/diet? Explain.
Len [333]

Answer:

In a nutshell, diet refers to all the food that you consume through the day, on a regular basis. Nutrition, on the other hand, refers to the fuel that your body requires to function optimally and maintain good health. It refers to the right mix of nutrients.

Explanation:

3 0
2 years ago
Read 2 more answers
What phase of matter changes volume when moved from one container to another ?
Sever21 [200]

Answer:

gas

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Water is placed outside at 298 K overnight. Which statement best describes what would happen?a)298 K converts to -24.9 °C, so th
    14·1 answer
  • Is heat being released or absorbed physical or chemical changes
    9·2 answers
  • Determine the number of bonding electrons and the number of nonbonding electrons in the structure of cs2.
    14·2 answers
  • Calculate the volume, in milliliters, of a 0.330 M KOH solution that should be added to 6.000 g of HEPES (MW = 238.306 g/mol, pK
    7·1 answer
  • How many liters of fluorine gas are needed to form 879 L of sulfur hexafluoride gas if the following reaction takes place at 2.0
    9·1 answer
  • A student has an unknown sample. How can spectroscopy be used to identify the sample?
    8·2 answers
  • Which statement correctly describes the conductivity of the specified material?
    12·1 answer
  • A volume of gas at 1.10 atm was measured at 507 ml. What will be the volume if the pressure is adjusted to 1.90
    12·1 answer
  • In a star, nuclear fusion occurs in the
    9·2 answers
  • A student added 3 g of melted wax to a container that weighed 15 g. What is the weight of the container after the wax hardens?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!