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
Dmitriy789 [7]
3 years ago
10

PLEASE HELP ITS DUE TODAY

Chemistry
2 answers:
dimulka [17.4K]3 years ago
8 0

Answer:

2nd one and last one

Explanation:

im just that smart

ozzi3 years ago
7 0
Second one.
Compounds are formed by chemically combining elements. Mixtures are more physical and can be separated easily
You might be interested in
BRAINLIEST AWARD PLZ HELP :)
Vera_Pavlovna [14]
Properties of metals:
High melting points
High density
Ductile
Malleable
Good conductors of electricity
Good conductors of heat


I think if you added a proton you would have chlorine.


The noble gasses are the he chemical elements in group 18 of the periodic table. The gasses in this family include helium, neon, argon, krypton, xenon, and radon. All these gasses are colorless are oderless, elements in this family have atoms with a full outer shell of electrons. They are also called inert gasses.

Six valence electrons
6 0
3 years ago
Read 2 more answers
WILL GIVE 50 POINTS AND BRAINLIEST Describe the properties of alkaline earth metals. Based on their electronic arrangement, expl
Arisa [49]
Alkaline earth metals are metals of group two. They are divalent metals and they have a highly negative reduction potential hence the metals are mostly extracted by electrolysis.

They are highly reactive metals. They react with water but do so less readily than alkali earth metals.

Owing to their high reactivity, they are seldom found free in nature. They always occur in combined state with other highly reactive nonmetals.
7 0
2 years ago
What kind of property is melting point? an atomic property , , , an atomic property , , a physical property , a physical propert
jok3333 [9.3K]

Answer:

physical property has a melting point

8 0
3 years ago
What is the effect of pressure on boiling point??? 1 mark answer plsss
d1i1m1o1n [39]

Answer:

direct effect

Increasing the pressure increases the boiling point and decreasing the pressure decreases the boiling point

8 0
3 years ago
Read 2 more answers
Before we can use this equation for
AlexFokin [52]

Answer:

2C₂H₆ +  [7]O₂     →      [4]CO₂ + [6]H₂O

Explanation:

Chemical equation:

C₂H₆ +  O₂     →      CO₂ + H₂O

Balanced chemical equation:

2C₂H₆ +  7O₂     →      4CO₂ + 6H₂O

Step 1:

2C₂H₆ +  O₂     →      CO₂ + H₂O

Left hand side                      Right hand side

C = 4                                     C = 1

H = 12                                    H = 2

O = 2                                     O = 3

Step 2:

2C₂H₆ +  O₂     →      4CO₂ + H₂O

Left hand side                      Right hand side

C = 4                                     C =  4

H = 12                                    H = 2

O = 2                                     O = 9

Step 3:

2C₂H₆ +  O₂     →      4CO₂ + 6H₂O

Left hand side                      Right hand side

C = 4                                     C =  4

H = 12                                    H = 12

O = 2                                     O = 14

Step 4:

2C₂H₆ +  7O₂     →      4CO₂ + 6H₂O

Left hand side                      Right hand side

C = 4                                     C =  4

H = 12                                    H = 12

O = 14                                     O = 14

3 0
3 years ago
Other questions:
  • BRAINLIESTTT ASAP!! PLEASE HELP ME ASAP!
    10·2 answers
  • Two isotopes of the same element will have the same _____ but a different ____. (2 points)
    13·1 answer
  • What is the result of chemical digestion of carbohydrates proteins and fats?
    9·1 answer
  • Why is the brcl molecules polar??
    7·2 answers
  • What is the molecular geometry of H2O?
    15·1 answer
  • Use the following equation to determine the charge on bromine when it dissociates from sodium and determine whether it is being
    14·2 answers
  • The amount of water vapor in a given volume of air is ————
    11·2 answers
  • What type of reaction is the following
    13·1 answer
  • What is light and how is it made?​
    15·2 answers
  • 1.Calculate the mass of compound required to prepare 100.00 mL of a 1.40x10-2M CuCl2.Show your work.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!