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
Sedbober [7]
3 years ago
7

Lunar Eclipe's do not happen every month because the moon, earth and sun must be lined up in a certain way.

Chemistry
2 answers:
chubhunter [2.5K]3 years ago
5 0
True

Thank you for you time
Andreyy893 years ago
4 0

Answer:

A. True

Explanation:

mssjskksjsjsjsksjsjskks

You might be interested in
Is this right?????????????????????
aleksley [76]

C and D are correct. This is the process of replication, and option E refers to repetition.

7 0
3 years ago
KOH+HBr-KBr+H2O which is the base in this reaction​
krek1111 [17]

Answer:

KOH is the base in this reaction

Explanation:

HBr is the acid in this reaction.

Hope this help you. Have a nice day !

8 0
3 years ago
How many significant figures are in 5.40
kotykmax [81]
There are 3 significant figures in this value, all values before and after the decimal point are significant. As there is a decimal point, the zeros trailing are also significant.
4 0
3 years ago
Calcium Carbide (CaC2) is an unusual substance that contains a carbon anion (C2 2- ). The reaction with water involves several s
rjkz [21]

The question is incomplete. The complete question is:

Calcium Carbide (CaC₂) is an unusual substance that contains a carbon anion (C₂²⁻). The reaction with water involves several steps that occur in rapid succession. CaC2 is a salt (notice that its name is similar to sodium chloride). When a salt dissolves in water, ions leave the crystal lattice and enter the aqueous (aq) solution. Write the relevant balanced chemical equation for the dissolution of CaC₂, in water.

Answer:

CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(aq)

Explanation:

When a salt dissolves in water, it dissociates in its ions. In the Calcium Carbide, the cation is Ca⁺² and the anion is C₂²⁻, so the reaction is:

CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(aq)

The base Ca(OH)₂ is soluble, so it will dissociate at Ca⁺ and OH⁻, but the C₂H₂ is stable and doesn't dissociate in the solution.

5 0
3 years ago
What is the volume of 1.56 kg of a compound whose molar mass is 81.86 g/mole and whose density is 41.2 g/ml?
hjlf

Answer:

v = 37.9 ml

Explanation:

Given data:

Mass of compound = 1.56 kg

Density = 41.2 g/ml

Volume of compound = ?

Solution:

First of all we will convert the mass into g.

1.56 ×1000 = 1560 g

Formula:

D=m/v

D= density

m=mass

V=volume

v = m/d

v =  1560 g / 41.2 g/ml

v = 37.9 ml

7 0
3 years ago
Other questions:
  • How many liters of 0.85 M HCI solution would react completely with 3.5 moles Ca (OH)2?
    5·1 answer
  • How do I convert 12 g into kg in a formula
    8·1 answer
  • Which one of the following statements is not correct?
    6·1 answer
  • When the atoms of two substances joined to make a new substance the process is called?
    14·1 answer
  • The reason your classmate cannot find the compound in a chemical reference manual is that 2,4-diethyl-4-ethoxyhexane is the inco
    13·1 answer
  • 50 POINTS!
    5·1 answer
  • < Practice Questions for Midterm 2 - Part 1 (Not Timed)
    13·1 answer
  • 1.) Consider the processes or reactions, indicate which side of the reaction will have the greatest entropy AND explain why. (4
    12·1 answer
  • Pleade help me! (If you guys unfortunately I am going to report you) Thank you
    13·1 answer
  • (GIVING BRAINIEST!)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!