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
qwelly [4]
2 years ago
6

How is a pure substance different from a mixture?

Chemistry
2 answers:
mr_godi [17]2 years ago
6 0

It is A the answer is A and I'm doing homeschooling and I do quizzes and I got a A on it so the answer is A

QveST [7]2 years ago
3 0
The answer is A. Mixtures can be separated by physical means

A pure substance cannot be separated.
You might be interested in
A hiker climbs a hill. How does the potential energy of the hiker change as she climbs higher?
zloy xaker [14]
The answer should be A
6 0
3 years ago
Does the mineral cobalt have cleavage or fracture?.
marishachu [46]
I'm pretty sure that it's fracture, Not sure though
4 0
3 years ago
The goose has a mass of 19.2 lb (pounds) and is flying at 7.10 miles/h (miles per hour). What is the kinetic energy of the goose
nata0808 [166]

Answer:

43.868 J

Explanation:

Kinetic energy of a body is the amount of energy possessed by a moving body. The SI unit of kinetic energy is the joule (kg⋅m²⋅s⁻²).

According to classical mechanics, kinetic energy = 1/2 m·v²

Where, m= mass in kg and v= velocity in m/s

Given: m = 19.2 lb and v = 7.10 miles/h

Since, 1 lb= 0.453592 kg

∴ m = 19.2 lb = 19.2 × 0.453592 kg = 8.709 kg

Also, 1 mi = 1609.34 m and 1 h = 3600 sec

∴ v = 7.10 mi/h = 7.10 × 1609.34 m ÷ 3600 sec = 3.174 m/sec

Therefore, <u>kinetic energy of the goose</u> = 1/2 m·v² = 1/2 × (8.709 kg)× (3.174 m/sec)² = 43.868 J

5 0
2 years ago
Which is the following is a vector quality?<br>ans:<br>1)mass<br>2)speed<br>3)time<br>4)plane area​
Brut [27]

Answer:

speed

Explanation:

hope it helps

keep smiling

4 0
2 years ago
Chem. Assignment <br><br> I need help...with answers 1-6 thanks
Anna11 [10]

Answer:

1. an educated guess

2. data

3. what changes in experiment

4. what stays the same in both groups

5. the group where nothing changes, normal

6. group with independent variable, what's being tested

8 0
3 years ago
Other questions:
  • How many moles of carbon in 130g of C2H6
    7·2 answers
  • Which choice is not true of a liquid in a glass capillary with a convex meniscus?
    5·2 answers
  • What is the chemical formula of this organic compound
    15·1 answer
  • Please help me for 20 points<br> NUMBER 11 ONLY PLEASE <br> LOOK ON PHOTO FOR THE QUESTION, thanks!
    10·1 answer
  • PLEASE HELP!! 20 POINTS!
    8·1 answer
  • Through electrolysis, a student collects 6.6 g of hydrogen gas and 52.4 g of oxygen gas. The reaction was allowed to proceed to
    7·1 answer
  • An insulated piston-cylinder device contains 1 L of saturated liquid water at pressure of 150 kPa. An electric resistance heater
    9·1 answer
  • What is alkaline and what is acidic pH
    7·1 answer
  • Why do scientists use scientideic notation?
    12·2 answers
  • In an atom the number of protons must be equal of
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!