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
oksano4ka [1.4K]
3 years ago
14

You are given two sample tubes, each containing a white powder: your task is to determine if these powders are pure substances a

nd two samples of same substance. briefly describe your strategy for completing your task.
Biology
1 answer:
kifflom [539]3 years ago
6 0
Take a bit of each other and burn it individually. If they make the same reaction, they are the same.
Next, take a bit of each other and put it into the water and stir it until it dissolves, then filter those dilutions. If there's something left, the substances are not clean.
You might be interested in
Explain how the law of entropy (second law of thermodynamics) applies in explaining the 10% rule in energy transfer in a food we
8_murik_8 [283]

Energy is always lost as energy is moved from one level to another. ... The loss of energy due to the second law of thermodynamics results in a pyramid with a large base and a 10% ratio between levels.

7 0
2 years ago
Most plant leaves take in more carbon dioxide as light increases. They give off carbon dioxide if light intensity is too low. Th
stich3 [128]

Answer:

B. Cellular Respiration

Explanation:

Because u have to think which one does the samething as photosynthesis

5 0
2 years ago
Please help me order these from least to greatest???
ki77a [65]

Rock moves outward, A crack forms, Magma pushes upward, Magma hardens

3 0
2 years ago
You will come to find that everything that makes life possible on earth is all _____.
Georgia [21]
The answer is interconnected. You will come to find that everything that makes life possible on earth is all interconnected. It is just like the way all the human activities and necessities for the everyday life are all interconnected to nature.
5 0
3 years ago
The diagram below shows a food web in a woodland.
gregori [183]
Y is the best options because a secondary consumer will eat a primary consumer for energy (the grass hopper).
7 0
2 years ago
Other questions:
  • Based on the banding patterns how many sites tested positive for carp
    15·1 answer
  • What is the connection between the light reactions and the calvin cycle? (what is produced in the light reactions and required f
    14·1 answer
  • Carla likes to garden. One side of Carla's garden is shaded by nearby trees and does not get much light. The other side gets ple
    8·1 answer
  • Animals who can control the direction they move and all have what
    12·1 answer
  • What could happen to these snails if they did not have these adaptions
    9·1 answer
  • What is the best definition of mutation
    6·2 answers
  • In a certain species of pine trees, the short needles are dominant to long needles. when discussing the pine tree needles as bei
    13·1 answer
  • How do I know that diagram of amoeba cell division is Asexual reproduction in an amoeba
    8·1 answer
  • What part of the microscope is used to move an objective lens into place?
    13·1 answer
  • Because no light penetrates the aphotic zone of the ocean:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!