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
Naddika [18.5K]
3 years ago
11

When do you identify your variables?

Chemistry
2 answers:
Alekssandra [29.7K]3 years ago
3 0
Option numberrrr C I THINK
Natasha2012 [34]3 years ago
3 0

Answer:

Before the hypothesis

Explanation:

You might be interested in
A match has about 21 milligrams of red phosphorus coating the tip. How many atoms of phosphorus is this?
MAXImum [283]

Answer:

4.083 * 10^20 atoms.

Explanation:

One Mole of phosphorus  contains 6.022 * 10^23 atoms (Avogadros number)'

Since 1 mole of Phosphorus  has a mass of  30.974 grams, 21 milligrams has

6.022 * 10^23  * 0.021 / 30.974

= 0.004083 * 10^23

= 4.083 * 10^20

3 0
3 years ago
Which statement about stars is correct?
denis23 [38]

Answer:

A. star formation begins in a nebula.

Explanation:

4 0
3 years ago
A substance has half the number of particles as 12 grams of carbon 12, how many moles are in the substance?
gavmur [86]

the molar mass is how many grams it takes to make a full mole.  The number  in carbon 12 tells us that it takes 12 g to makes a mole, so one half of that would be <u><em>option d, 0.5</em></u>.  

7 0
3 years ago
Read 2 more answers
Help meeeeeeee??????????​
kolbaska11 [484]

Answer:

njjii

Explanation:

uujhhhjhhhthnjkk

5 0
2 years ago
To minimize the sharp ph shift that occurs when a strong acid is added to a solution
adell [148]
To minimize the sharp pH shift that occurs when a strong acid is added to a solution, IT IS PRACTICAL TO ADD A WEAK BASE.
When a strong acid is added to a solution, it usually brings about a sharp change in the pH of the concerned solution. To avoid this, one can add a  weak base to the solution first. The weak base will serves as a buffer for the strong acid and prevents the solution from experiencing sharp pH variations.
4 0
3 years ago
Other questions:
  • List the electron shell and the number of electrons in each shell
    6·2 answers
  • What happens first during cellular respiration?
    11·1 answer
  • Explain why organisms are more likely to be well preserved in mud than in sand
    11·1 answer
  • The reaction X 2 (g) m 2 X(g) occurs in a closed reaction vessel at constant volume and temperature. Initially, the vessel conta
    14·1 answer
  • Arrange the following elements in order of decreasing atomic radius: Ba, Sn, S, Pb, and As. Rank elements from largest to smalle
    14·1 answer
  • HBrO (aq) + H2O (l) ⇋ H3O+ (aq) + BrO- (aq)
    13·2 answers
  • What is formed when oxygen and hydrogen unite chemically
    8·1 answer
  • Why can't liquids change volume but gases can
    6·1 answer
  • What is the dependent variable for "how does changing your laundry detergent affect how clean your clothes are?"
    12·1 answer
  • Pls someone help ASAP
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!