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
Naddik [55]
2 years ago
13

Helppppp????????????

Biology
1 answer:
prohojiy [21]2 years ago
3 0

the amount of matters refers to the mass

You might be interested in
In a lab about the activity series, a solution of copper(II)chloride is placed in a test tube with zinc metal. If zinc is higher
Tcecarenko [31]

Answer:

Option D, Zinc is higher on the activity series because there is clear evidence of a reaction.

Explanation:

It is very clear that a metal which is higher in activity will replace a metal having lower activity.  

Since, Zinc has higher activity than copper, it is very sure that it in a copper chloride solution it will replace copper and produce zinc chloride solution leaving behind copper as residue.  

Residues of copper is a clear evidence of reaction  

The chemical equation for this reaction would be -

CuCl_2 + 2Zn^+ -----> 2ZnCl + Cu^{2+}

Hence, option D is correct

5 0
3 years ago
What are the three outputs a result of photosynthesis?✨ Will give brilliant✨ ( when I can)
nordsb [41]
1. Glucose
2. Calvin cycle ( I might be wrong)
3. Light reaction
Light reaction is the actual food for the plant
5 0
2 years ago
A __________ is a set of parts that function together as a whole. A) biosphere B) climate zone C) system D) habitat
klio [65]

C) a system is a set of parts that function together as a whole

7 0
3 years ago
In patients with emphysema, what is the main stimulus of respiratory regulation?
Vlad1618 [11]
Hey there,
The answer is <span>high CO2 levels in the CSF.

Hope this helps :))

~Top
</span>
4 0
3 years ago
Michelle and George are studying the forces and motion of a 0.8-kg low friction cart on a horizontal table. They use a spring sc
Helen [10]
Table 1: The horizontal pulling forces (F) and resulting acceleration (a) for the cart.



The cart experiences no motion when there is 0.1 N of horizontal force, so F=0 in this case. When one uses Newton's Second Law to find the acceleration caused by each force, it becomes clear that every row in the chart represents a horizontal force of approximately F=20 N. The best fit for the missing value is F=-30N.
5 0
2 years ago
Other questions:
  • Humans have earlobes of two basic shapes: attached and free. Free earlobes (F) are dominant over attached earlobes (f). Cross on
    14·1 answer
  • Which statement describes the relationship between transcription and translation?
    6·2 answers
  • Which of the following is an example of homeostasis?
    13·1 answer
  • Which of the molecules below is NOT a subunit for building macromolecules?
    10·1 answer
  • Animals store most of their excess energy reserves as ____.
    12·1 answer
  • Name 3 ways in which the worms helped the plants grow taller?
    5·2 answers
  • This this statement incorrect or why
    8·2 answers
  • Will sodium react to water? t/f
    15·2 answers
  • How does biomagnification put a top predator at a disadvantage?*
    14·2 answers
  • Cells of the nervous system which supports the neurons by producing myelin sheaths and
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!