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
cupoosta [38]
3 years ago
12

Jonathan conducts an experiment to determine what solutes readily dissolve in water. He places 3 tablespoons of potting soil int

o one cup of water. He records his observations in 15-minute increments. After a half hour, he notices that some of the soil particles have separated and sank to the bottom. O 15 minutes 30 minutes Which term best describes the combination of soil and water?
A.Mixture
B. A solution
C. an alloy
D. an emulsion ​
Chemistry
1 answer:
mariarad [96]3 years ago
4 0

Answer:

A. Mixture

Explanation:

You might be interested in
What is the term for a ratio of equivalent measurements that can be used to change a value from one until into another
Olegator [25]

Answer:conversion factor

Explanation:

3 0
3 years ago
How many grams of KCl is needed to make .75 L of a 1 M solution of KCl?
Zielflug [23.3K]

Answer:

The answer to your question is 25.9 g of KCl

Explanation:

Data

Grams of KCl = ?

Volume = 0.75 l

Molarity = 1 M

Formula

Molarity = \frac{number of moles}{volume}

Solve for number of moles

Number of moles = Molarity x volume

Substitution

Number of moles = 1 x 0.75

Simplification

Number of moles = 0.75 moles

Molecular mass KCl = 39 + 35.5 = 34.5

Use proportions to find the grams of KCl

                          34.5 g of KCl ----------------  1 mol

                             x                  ----------------  0.75 moles

                            x = (0.75 x 34.5) / 1

                            x = 25.9 g of KCl

3 0
3 years ago
Making an apple pie calls for a reaction among certain ratios of ingredients. How is making an apple pie different from making l
slamgirl [31]

Hey! How are you? My name is Maria, 19 years old. Yesterday broke up with a guy, looking for casual sex.

Write me here and I will give you my phone number - *pofsex.com*

My nickname - Lovely

8 0
3 years ago
The acceleration of a sprinter is 10 m/s2. The force exerted on the starting blocks is 650 N. What is the mass of the sprinter?
jek_recluse [69]

The relation between force, mass of an object and its acceleration is given by following equation

F = mass of object X acceleration

The unit of Force is Newton (N)

unit of acceleration is ms⁻²

unit of mass if Kg

[all these are SI units]

Mass of object =\frac{Force}{acceleration}

mass of sprinter =\frac{650}{10}=65kg

5 0
3 years ago
Read 2 more answers
A helium-filled balloon has a volume of 2.48 L and a pressure of 150 kPa. The volume of the balloon increases to 2.98 L after yo
Tema [17]

Answer:

THE NEW PRESSURE OF THE HELIUM GAS AT 2.98 L VOLUME IS 124.8 kPa.

AT AN INCREASE ALTITUDE, THERE IS A LOWER PRESSURE ENVIRONMENT AND THE HELIUM GAS PRESSURE DECREASES AND HENCE AN INCREASE IN VOLUME.

Explanation:

The question above follows Boyle's law of the gas law as the temperature is kept constant.

Boyle's law states that the pressure of a fixed mass of gas is inversely proportional to the volume, provided the temperature remains constant.

Mathematically, P1 V1 = P2 V2

P1 = 150 kPa = 150 *10^3 Pa

V1 = 2.48 L

V2 = 2.98 L

P2 = ?

Rearranging the equation, we obtain;

P2 = P1 V1 / V2

P2 = 150 kPa * 2.48 / 2.98

P2 = 372 *10 ^3 / 2.98

P2 = 124.8 kPa.

The new pressure of the gas when at a height which increases the volume of the helium gas to 2.98 L is 124.8 kPa.

6 0
3 years ago
Other questions:
  • This balanced chemical equation represents a chemical reaction: 6no + 4nh3 → 5n2 + 6h2o what volume of nh3 gas, at standard temp
    7·2 answers
  • What is the volume of one mole of any gass at STP?
    13·1 answer
  • What are the concentrations of hydroxide and hydronium ions in a solution with a pH of 10.2?
    13·2 answers
  • Which element in period 2 has six electrons in its electron dot structure?
    11·1 answer
  • Solids, liquids, and gases are three common states of matter. in which of these physical states would a water molecule likely ha
    8·1 answer
  • What does a gamma ray primarily consist of?
    6·1 answer
  • Suppose you have a solution that is either an acid or a base. It doesn’t react with any metals. Is the pH of the solution more l
    11·1 answer
  • If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol
    8·1 answer
  • Compare the change in pH with the addition of acid and base to deionized water and to a buffer.
    15·1 answer
  • Las diferencias fundamentales del entramado urbano antes y despues de 1750​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!