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
Lerok [7]
2 years ago
7

HELPPPPP

Chemistry
1 answer:
Darya [45]2 years ago
8 0

Answer:

Sound waves are faster than light waves when traveling through the air.

(This statement is NOT true)

or

Sound waves and electromagnetic waves are both needed to talk on a cell phone

Explanation:

Sound waves need a medium to travel through, but light does not.

Also, the statement "Sound waves and electromagnetic waves are both needed to talk on a cell phone" might also be NOT true, since, as far as I know, cellphone calls need radio and sound waves, not electromagnetic waves.

You might be interested in
Which produces the greatest number of ions when one mole dissolves in water?
Arada [10]
~Hello there!

Your question: Which produces the greatest number of ions when one mole dissolves in water?

Your answer: Na2SO4<span> can dissociate into three ions, whereas the other choices produce only two ions (or in the case of sucrose, none) when dissolved in water.

Any queries ^?

Happy Studying!
</span>
7 0
3 years ago
Acid base reaction is called nuetralization reaction why?​
Lesechka [4]

Answer:

Explanation:

You have an acid that is acidic or a base that is basic. When you mix the two, they form water (assuming those are bronsted-lowry acids and bases) which is neutral.

3 0
3 years ago
Read 2 more answers
Which most likely would be a new social issue resulting from the installation of a dam?
irinina [24]
C. Greater exposure to radiation

3 0
3 years ago
Read 2 more answers
Calculate the second volumes. <br> 7.03 Liters at 31 C and 111 Torr to STP
DIA [1.3K]

The second volume :    V₂= 0.922 L

<h3> Further explanation </h3><h3>Given </h3>

7.03 Liters at 31 C and 111 Torr

Required

The second volume

Solution

T₁ = 31 + 273 = 304 K

P₁ = 111 torr = 0,146 atm

V₁ = 7.03 L

At STP :  

P₂ = 1 atm

T₂ = 273 K

Use combine gas law :

P₁V₁/T₁ = P₂V₂/T₂

Input the value :

0.146 x 7.03 / 304 = 1 x V₂/273

V₂= 0.922 L

4 0
3 years ago
What volume of concentrated (10.2 M) HCl would be required to prepare 1.11 x 104 mL of 1.5 M HC1? Enter your answer in scientifi
Tomtit [17]

Answer:

The required volume is 1.6 x 10³mL.

Explanation:

When we want to prepare a dilute solution from a concentrated one, we can use the dilution rule to find out the required volume to dilute. This rule states:

C₁ . V₁ = C₂ . V₂

where,

C₁ and V₁ are the concentration and volume of the concentrated solution

C₂ and V₂ are the concentration and volume of the dilute solution

In this case, we want to find out V₁:

C₁ . V₁ = C₂ . V₂

V_{1} = \frac{C_{2}.V_{2}}{C_{1}} = \frac{1.5M \times1.11.10^{4}mL }{10.2M} =1.6\times10^{3} mL

3 0
3 years ago
Other questions:
  • What is the melting point of silcon 4 oxide<br>​
    12·1 answer
  • If there is a reaction mixture in an organic solvent that contains an organic acid, an organic base, neutral organic compounds,
    13·1 answer
  • The main reason why water is often referred to as a 'universal solvent' is because:
    6·2 answers
  • The ionic charge of an element in Group 6A is 2–.
    12·1 answer
  • Two compounds are mixed. Which statement is true if there is only a physical reaction? A. The color changes. B. Heat is release
    11·2 answers
  • Table C: Known Specific Heat Values for Common Materials
    10·1 answer
  • Write Fe salts (divalent Fe)?​<br><br>Pleasee help.... I will mark the answer with brainlist.
    10·1 answer
  • Which industry would most likely be affected if coal recourses were depleted.
    8·2 answers
  • explain one or two things that adversely (negatively) affect the Earth's environment. How do you know that these things you're d
    11·2 answers
  • Need actual help plsss
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!