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
liraira [26]
3 years ago
5

Which step in the scientific method is conducted before a controlled experiment?

Chemistry
1 answer:
ycow [4]3 years ago
4 0
You should always do A. form a hypothesis before performing an experiment also the other options cannot happen until after an experiment.
You might be interested in
How many moles are in 3.0g of A1203?
vfiekz [6]

Answer:

0.065 moles

Explanation:

4 0
3 years ago
In an electroplating apparatus, where does the reduction reaction occur?
Ludmilka [50]

Answer:

on the surface of the cathode

6 0
1 year ago
What patterns in the rock layer fossils helped you identify an extinction?
Dafna11 [192]
Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction
8 0
3 years ago
Read 2 more answers
You have a gas stored in a rigid container (fixed volume). Explain the relationship between a decrease in temperature, collision
alexandr1967 [171]

Answer:

A decrease in temperature would decrease kinetic energy, therefore decreasing collisions possible.

Explanation:

A gas at a fixed volume is going to have collisions automatically. If you decrease the temperature (same thing as decreasing kinetic energy) you are cooling down the molecules in the container which gives them less energy and "relaxes" them. This decrease in energy causes them to move around much slower and causing less collisions, at a much slower rate. In a perfect world, these collisions do not slow down the molecule but we know that they do, just a very very small unmeasurable amount.

6 0
3 years ago
How many atoms are in 6.3 mol Zn
san4es73 [151]

Answer:

3.8x1024atoms Zn

Explanation:

is the answer

4 0
2 years ago
Read 2 more answers
Other questions:
  • Gravity and magnetism are ________ forces.
    14·1 answer
  • A sample of Freon-12 (CF2Cl2) occupies 2.842 x 101 L at 331 K and 2.525 x 102 kPa. Find its volume (in L) at standard temperatur
    12·1 answer
  • 13. Which of the following has the highest amount of kinetic energy?
    13·1 answer
  • The study of metals and the process for refining and making things from them is called _____.
    5·2 answers
  • Based on their locations in the periodic table, which of these elements would you expect to have the greatest atomic radius?
    9·1 answer
  • What is earths surface made of?
    13·2 answers
  • How is carbon dioxide collected in laboratory​
    15·1 answer
  • 1. If 2 moles of hydrogen combine with one mole of oxygen, how many moles of water are<br> produced?
    13·1 answer
  • Ас
    6·1 answer
  • How does a lock and key model allow enzymes in the human body to lower activation energy?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!