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
Please help me:( I’ll give u points of its right
goldenfox [79]

Answer:

k

p

p

k

k

I believe.. ............

8 0
3 years ago
What effect does nuclear radiation have on atoms
Diano4ka-milaya [45]

it is C it splits atoms

7 0
3 years ago
Read 2 more answers
What is the ratio of ions of aluminium fluoride component i.e. Aluminium ions to fluorine ions
Ad libitum [116K]

Answer:

Al:F3​:: 3:19.

Explanation:

8 0
2 years ago
An oxide of nitrogen contain its own volume of nitrogen
kirill115 [55]

Answer:

NO2 is the molecular formula  of nitrogen Oxide​

Explanation:

Correct question

An oxide of nitrogen contain its own volume of nitrogen

its vapour dentity is 23. Find the molecular formula

Of nitrogen Oxide

Solution

As we know

Molecular Weight  is equal to two times the  vapour density

Hence, the molecular weight of Oxide of nitrogen is 2 * 22 = 44

Molecular weight of Oxide of nitrogen  is the sum of atomic weight of nitrogen and oxygen

Molecular weight of Oxide of nitrogen = 14 + 16 *Y

14 + 16 *Y  = 46

Y = 2

Hence, the formula is NO2

4 0
3 years ago
Is NaHCO3 a compound? Explain pls!
Slav-nsk [51]

Answer:

Yes it is

Explanation: because it is composed of identical molecules consisting of atoms of two or more chemical elements.

hope it helps <3

4 0
2 years ago
Read 2 more answers
Other questions:
  • For the reaction A+B↽−−⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the
    8·1 answer
  • At the ph found in cells (about 7.0) what happens to the amino group on an amino acid
    15·1 answer
  • What is the [H3O+] of a solution with a pH of 2.56? 2.56 M, 2.75 x 10-3 M, 363 M, or -0.408 M
    12·2 answers
  • A 46.2 mL,0.568 M calcium nitrate solution is mixed with 80.5mL of 1.396M calcium nitrate solution.Calculate tge concentration o
    13·1 answer
  • Convert 13,400 m to km.
    8·2 answers
  • Researchers tested a meteorite for organic molecules containing 13C and 15N, which are carbon and nitrogen atoms with one extra
    9·1 answer
  • HELPPP ANSWERS ????<br><br> A: 3<br> B: 2<br> C: 1<br> D: 4
    7·2 answers
  • What is a hypothesis
    7·2 answers
  • Explain the greenhouse gas effect
    6·1 answer
  • What makes an acid acidic? a) Number of protons in a molecule b) Temperature c) Chemical structure d) Phase​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!