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
Bond [772]
3 years ago
5

Will vote brainliest and 5 star

Chemistry
1 answer:
svetoff [14.1K]3 years ago
4 0

Answer:

it is B

Explanation:

hope it helps you

You might be interested in
Two 0.9mL aliquots of the same specimen are placed in test tubes. To one is added 0.1 mL of water (spec A). To the other is adde
Tanya [424]
We assume that the method that made use of urea was able to recover all of the recoverable substance. The method in question is the method that makes use of water.
The total amount of substance is 43 mg/dl. The recovered amount is 25 mg/dl. The percent recovery is
(25 mg/dl / 43 mg/dl) * 100 = 58.14%
8 0
3 years ago
When did homo spiens leave africa
german

homo sapiens leave africa at approximately 200,000 years ago.

7 0
3 years ago
When a substance is heated, what causes its properties to change?
hoa [83]

The molecules vibrate when the substance is heated, and the shape of the substance begins to form a different shape. For example: when you hear up metal it will melt becuase its molecules are changing and moving.

8 0
3 years ago
Read 2 more answers
Which of the following describes a chemical change?
Sphinxa [80]

Answer:

C

Explanation:

Have a nice day

6 0
3 years ago
If a chromosome folds, how is transcription prevented?
irinina [24]

Answer:

The DNA region is not easily accesible.

Explanation:

8 0
3 years ago
Other questions:
  • In which of the following atoms are valence electrons in the lowest average potential energy states?
    10·1 answer
  • Which of the following statements is NOT true?
    8·1 answer
  • In science how are solutions and mixtures alike, and how are they different? 28 points!!!!!!
    15·1 answer
  • How would I go about solving this problem?
    10·1 answer
  • Which is a complex molecule?<br><br> a. H2<br><br> b. Ne<br><br> c. Co<br><br> d. H20
    9·1 answer
  • A scientist has tested an experimental drug on laboratory mice and created a model. Which of the following is the next logical s
    13·1 answer
  • List in order which digits are significant in the following numbers:
    8·1 answer
  • How do producers and consumers get energy from the sun?
    15·1 answer
  • A chemical reaction which uses a molecule of water to break apart another molecule is most commonly called
    10·1 answer
  • Name the following cycloalkane:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!