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
zmey [24]
3 years ago
7

Help me with this please!

Chemistry
1 answer:
Rama09 [41]3 years ago
8 0

Answer:

1.New moon

2.New and full Moon

Explanation:

You might be interested in
Cobalt (Co) has an atomic mass of 59 and an atomic number of 27. Which statement correctly describes an atom of cobalt?
marysya [2.9K]

Answer:

A

Explanation:

27 us the number of protons when we subtract 27 from 59 it will be 32 because a mass number is the sum of proton and neutron but tell u more on the comment

3 0
3 years ago
Determine the heat energy needed to raise the temperature of 120 grams of ice at -5 to steam at 115°
CaHeK987 [17]

Answer:

Q = 30355.2 J

Explanation:

Given data:

Mass of ice = 120 g

Initial temperature = -5°C

Final temperature = 115°C

Energy required = ?

Solution:

Specific heat capacity of ice is = 2.108 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Q = m.c. ΔT

ΔT = T2 -T1

ΔT = 115 - (-5°C)

ΔT = 120 °C

Q = 120 g × 2.108 j/g.°C × 120 °C

Q = 30355.2 J

5 0
4 years ago
Write a balanced equation to show the reaction of gaseous ethane with gaseous oxygen to form carbon monoxide gas and water vapor
Korolek [52]
<span>2 C2H6(g) + 5 O2(g) --------> 4 CO(g) + 6 H2O(g)

</span>
7 0
4 years ago
What type of reaction is the decay of carbon-14
ivolga24 [154]
First order reaction ?

3 0
3 years ago
How is bacteria on mars counted as life but a heartbeat on earth not?
Sever21 [200]

Answer:

It is considered life, but that doesn’t have to do much with abortion.

We kill things all the time. Unless you are vegetarian, lots of animals are killed to give you meat. Even if you are, you’ll probably swat a mosquito that’s trying to bite you. And what about the bacteria inside your body that are constantly killed to keep you healthy?

The question is how much this life is worth. This becomes more a question of ethics, but I think we can all agree a human life is worth a lot. So killing humans is wrong. What about somewhat intelligent animals? Well, killing them just for the fun of it or because you can is wrong as well I think.Most people think that’s okay, although some people will disagree and become vegetarians.

Insect life is worth less, and killing an insect is seen by most people as okay as long as you have even a small reason for it (like being irritated by a buzzing fly).

And all the way on the bottom are bacteria. They are not conscious, even though alive.

Sorry about the first answer. I didn't look at the question carefully since I wasn't wearing my glasses.

If this doesn't help than I'm sorry.

7 0
3 years ago
Other questions:
  • A ball rolls 12 meters in 4 seconds.What is the average speed of the ball?
    11·1 answer
  • How many protons are in an isotope of sodium with a mass number of 25?
    9·1 answer
  • In the titration of 238.0 mL of a 5.60×10-2 M solution of acid H3A (Ka1 = 1.0×10-3, Ka2 = 5.0×10-8, Ka3 = 2.0×10-12), calculate
    13·1 answer
  • Is cotton yarn a natural resource?
    14·1 answer
  • What is the periodic table of element
    11·1 answer
  • Recall all the models you described in task 1. Think about the results each model would predict for ruthefords experiment. Which
    5·1 answer
  • Is sulfur hexafluoride a compound?
    10·1 answer
  • Ayudaaaaaaaaaaaaaaaaa​
    5·1 answer
  • Temperature definition
    14·2 answers
  • A. chlorine<br>B. sulfur<br>C. oxygen <br>D. none of these​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!