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
sasho [114]
3 years ago
8

Which kind of investigations allow for the control of variables?

Chemistry
2 answers:
KATRIN_1 [288]3 years ago
6 0

Answer: The answer would be B. Hope this helps.

Explanation:

Monica [59]3 years ago
4 0

Answer:

b

Explanation:

You might be interested in
ANSWER ASAP (20 POINTS)
SIZIF [17.4K]

Answer:

a chemical formula

Explanation:

5 0
3 years ago
What is the predominant intermolecular force in the liquid state of each of these compounds: ammonia (NH3), methane (CH4), and n
MAVERICK [17]

Answer:

The  predominant intermolecular force in the liquid state of each of these compounds:

ammonia (NH3)

methane (CH4)

and nitrogen trifluoride (NF3)

Explanation:

The types of intermolecular forces:

1.Hydrogen bonding: It is a weak electrostatic force of attraction that exists between the hydrogen atom and a highly electronegative atom like N,O,F.

2.Dipole-dipole interactions: They exist between the oppositely charged dipoles in a polar covalent molecule.

3. London dispersion forces exist between all the atoms and molecules.

NH3 ammonia consists of intermolecular H-bonding.

Methane has London dispersion forces.

Because both carbon and hydrogen has almost similar electronegativity values.

NF3 has dipole-dipole interactions due to the electronegativity variations between nitrogen and fluorine.

3 0
3 years ago
An acid is any substance that
ehidna [41]

Answer:

C

Explanation: a is incorrect since the lower the ph = more acidic and b is incorrect because it produces hydronium ion and d I’m not sure what it is but I no that base recieve the protons

4 0
2 years ago
Combustion synthesis decomposition single replacement double replacement
irina [24]
Combustion=heat and light
decomposition=taking something away
single means one element changes
and double means two elements change l.
4 0
2 years ago
In a chemical formula such as C6H12O6 and H2O, what do you call the little numbers below the normal line of text.
Morgarella [4.7K]

These are called subscript number.

That is the number below the normal line of test are called subscript number.

This number indicate the indicate the number of atoms of the element present in the chemical formula.

In both of these C₆H₁₂O₆ and H₂O, the number written below the line of the text are called subscript numbers.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How do you use chemical energy in a sentence
    7·1 answer
  • A surfactant used for cleaning is called a(n):_________.
    13·1 answer
  • The elements with the highest ionization energy, and thus the lowest reactivity are
    8·2 answers
  • Hey I need help with 84-88
    7·1 answer
  • Which is longer, the carbon-oxygen single bond in a carboxylic acid or the carbon-oxygen bond in an alcohol?
    6·1 answer
  • Can some one please help me with this question with the steps please, thanks in advance ​
    15·1 answer
  • How many atoms of each element are in the chemical formula NH4NO2?
    9·1 answer
  • Think about how particles are arranged inside atoms. Please name and describe those three particles, and describe how the partic
    15·1 answer
  • How does area usually affect biodiversity within an ecosystem?
    8·2 answers
  • How much heat does it take to raise a 200g block of Aluminum 250C?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!