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
natali 33 [55]
3 years ago
10

Here is my question..

Chemistry
2 answers:
OverLord2011 [107]3 years ago
7 0
I would say 3.0 cause yeah yeah yeah yeah I’m iann Dior
atroni [7]3 years ago
5 0

Answer:

3.0

Explanation:

You might be interested in
What is the formula of the salt produced by this reaction?
SpyIntel [72]
The answer is d cuz it’s doesn’t make a lot of the formula
7 0
3 years ago
C) Solar energy is the source of all forms of energy.give reasons​
anastassius [24]

Answer:

All energy is made by the sun because without the sun there would be no humans to produce other energy

8 0
3 years ago
Read 2 more answers
how many milliliters of a stock solution of 2.00M KNO3 would you need to prepare 100.0mL of 0.150M KNO3?
larisa86 [58]
The answer is 7.5 ml
3 0
3 years ago
What is the de Broglie wavelength, in cm, of a 11.0-g hummingbird flying at 1.20 x 10^2 mph?
KonstantinChe [14]

Answer:1.123 x 10^-31cm

Explanation:

mass of humming bird=  11.0g

speed= 1.20x10^2mph

but I mile = 1.6m

1km=1000

I mile = 1.6x10^3m

1.20x10^2mph= 1.6x10^3m /1mile x at 1.20 x 10^2

=1.932 x10^5m

recall that  

1 hr= 60 min

1 min=60 secs, 1hr=3600s

Speed = distance/ time

=1.932 x10^5 / 3600= 5.366 x 10 ^1 m/s

m= a 11.0g= 11.0 x 10^-3kg

h=6.626*10^-34 (kg*m^2)/s

Wavelength = h/mu

= 6.626*10^-34/(11 x 10^-3 x 5.366x 10^1)

6.63x10^-34/ 590.26x 10 ^-3= 1.123 x10^-33m

but 1m = 100cm

1.123 x 10 ^-33 x 100 = 1.123 x 10^-31cm

de broglie wavelength of humming bird = 1.123 x 10 ^-31cm

5 0
3 years ago
Which equation represents a neutralization reaction?
Harrizon [31]

Answer: HCI + KOH → KCI + H20

Explanation:

HCI(aq) + KOH(aq) → KCI(aq) + H20(l)

Acid + base → Salt + Water.

The above is a neutralization reaction in which an acid, aqeous HCl reacts completely with an appropriate amount of a base, aqueous KOH to produce salt, aqueous KCl and water, liquid H2O only.

This is a neutralization reaction since, the hydrogen ion, H+, from the HCl is neutralized by the hydroxide ion, OH-, from the KOH to form the water molecule, H2O and salt, KCl only.

3 0
3 years ago
Other questions:
  • ASAP !!!! On a hot summer day the temperature is 30.0C. what is the volume of a weather balloon that has 34.5 moles of helium at
    12·1 answer
  • If Justin races his Chevy camaro south down 1-540 for 2560 meter in 60 second.what is it velocity
    11·1 answer
  • Which type of electromagnetic waves has more energy, an ultraviolet wave or an infrared wave?How can you tell this by looking at
    7·1 answer
  • A solution is made by dissolving
    9·1 answer
  • Which scientist proposed the model of an atom as a solid sphere?
    10·1 answer
  • RUIGA GIRLS
    13·1 answer
  • Explain why the coefficients on the left side of the equation don’t necessarily equal the coefficients on the right side of the
    8·1 answer
  • Please help is for my final An example of a chemical change is-
    6·1 answer
  • What are the compounds that you can find in mayonnaise
    15·2 answers
  • Which element makes up most of the air we breathe.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!