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
ryzh [129]
3 years ago
8

What is a hypothesis?

Chemistry
2 answers:
erik [133]3 years ago
8 0

Answer:

A hypothesis is a question about naturre and how it works

krek1111 [17]3 years ago
4 0

Answer:

The 4th option

a possible explanation of or answer to a scientific question

Explanation:

You might be interested in
An emulsifying agent is typically characterized by having ____. a. one polar end c. two polar ends b. one nonpolar end d. one po
tangare [24]

Answer:

An emulsifying agent is typically characterized by having <u><em>d. one polar end and one nonpolar end.</em></u>

Explanation:

Emulsifiers are substances that have the ability to bind, for example, fats with those substances that have mostly water in their conformation. In other words, the emulsifier facilitates mixtures of two or more immiscible liquid substances.

This is because the molecules of an emulsifier are often lipophilic (attract oil) at one end and hydrophilic (attract water) at the other. In other words it consists of a polar (hydrophilic) head group and a non-polar (hydrophobic) tail.

<u><em>An emulsifying agent is typically characterized by having d. one polar end and one nonpolar end.</em></u>

4 0
3 years ago
an astronaut on the moon throws a ball at a velocity of 4.1 m/s straight up. assuming the gravity on the moon is 1/6 that of ear
Aleonysh [2.5K]

Answer:

(1/2)(1.62) t^2 = 1.4

That will give you the time, t

Explanation:

hope this helps(✿◡‿◡)

5 0
2 years ago
the mass by mass percentage of a solution is 20%. find the mass of the solute dissolved in 500g of solution​
GuDViN [60]

Answer:

m_{solute}=100g

Explanation:

Hello,

In this case, by considering the mathematical definition of by mass percentage of a solute as shown below:

\%m/m=\frac{m_{solute}}{m_{solution}}*100\%

We are able to compute the mass of the solute in a 20% solution having 500 g of solution as follows:

m_{solute}=\frac{m_{solution}*\%m/m}{100\%} =\frac{500g*20\%}{100\%}\\ \\m_{solute}=100g

Best regards.

6 0
3 years ago
Explain, in your own words, what volumic mass is
ira [324]

Answer:

The density (more precisely, the volumetric mass density; also known as specific mass), of a substance is its mass per unit volume. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D can also be used.

5 0
2 years ago
When two molecules of methanol (CH3OH) react with oxygen, they combine with three O2 molecules to form two CO2 molecules and fou
Alex17521 [72]

Answer:

188

Explanation:

For every 2 molecules of methanol reacted, 4 molecules of water are formed.  Use this relationship to solve.

2/4 = 94/x

2x = 376

x = 188

188 molecules of water will be formed.

3 0
3 years ago
Other questions:
  • At a certain temperature, the equilibrium constant, K c , Kc, for this reaction is 53.3. H 2 ( g ) + I 2 ( g ) − ⇀ ↽ − 2 HI ( g
    13·1 answer
  • Simplify :: 3/8 + 7/2 + (-3/5) + 9/8 + (-3/2) + 6/5​
    9·1 answer
  • Will mark brainliest 35 pts
    15·1 answer
  • How does the percent of salt and sand from the beginning compared to the same percentage after performing the experiment?​
    9·1 answer
  • The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy Ea = 71.0kJ/mo
    13·1 answer
  • Suppose you fill a grass with ice cubes. When the ice cubes melt, is the glass still full?
    12·1 answer
  • Which of these are physical changes in matter check all that apply . ​
    12·2 answers
  • Is this an alpha or beta decay?
    12·1 answer
  • Help me please TwT. I really need it TwT
    7·1 answer
  • I need help on this, It’s due today. Please, anybody
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!