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
makvit [3.9K]
3 years ago
7

When a scientist is beginning the process what is the key term she or he must ask in order to begin?

Chemistry
1 answer:
ella [17]3 years ago
5 0

Answer:

B- why or how because any scientist deals with matter it's relationships ,properties and its composition which can be inferred from the questions why and how

You might be interested in
Which is it , if you are right I will give brainliest
Elan Coil [88]

Answer:

a

Explanation:

6 0
3 years ago
Read 2 more answers
Which is not a characteristic of minerals
dem82 [27]

I think d is wrong because  Everything else is correct for sure. also, minerals vary in the position they hold and have different chemical compounds.

6 0
3 years ago
How many moles are present in
olasank [31]

Answer: (a) There are 0.428 moles present in 12 g of N_{2} molecule.

(b) There are 2 moles present in 12.044 \times 10^{23} particles of oxygen.

Explanation:

(a). The mass of nitrogen molecule is given as 12 g.

As the molar mass of N_{2} is 28 g/mol so its number of moles are calculated as follows.

No. of moles = \frac{mass}{molar mass}\\= \frac{12 g}{28 g/mol}\\= 0.428 mol

So, there are 0.428 moles present in 12 g of N_{2} molecule.

(b). According to the mole concept, 1 mole of every substance contains 6.022 \times 10^{23} atoms.

Therefore, moles present in 12.044 \times 10^{23} particles are calculated as follows.

Moles = \frac{12.044 \times 10^{23}}{6.022 \times 10^{23}}\\= 2 mol

So, there are 2 moles present in 12.044 \times 10^{23} particles of oxygen.

4 0
3 years ago
What type of tectonic activity occurs in the San Andreas Fault?
kykrilka [37]

The answer is a strike-slip. More specifically a right-lateral strike-slip.

6 0
3 years ago
How does matter change phase?
crimeas [40]

Answer:

Phase changes typically occur when the temperature or pressure of a system is altered. When temperature or pressure increases, molecules interact more with each other. When pressure increases or temperature decreases, it's easier for atoms and molecules to settle into a more rigid structure.

Explanation:

Hope it helps UvU

7 0
2 years ago
Other questions:
  • If a solid line represents a covalent bond and a dotted line represents intermolecular attraction, which of these choices shows
    9·1 answer
  • Part a the disproportionation of mn2+(aq) to mn(s) and mno2(s) in acid solution at 25 ∘c. calculate δg∘rxn.
    11·1 answer
  • Which of the following is true of atoms with very high electronegativity?
    5·1 answer
  • A small helium tank measures about two feet high. Yet it can fill over 50 balloons! How can such a small tank contain enough hel
    9·1 answer
  • If an ion has 22 protons and 18 electrons, then what is its charge?
    15·2 answers
  • A chemical reaction in a bomb calorimeter evolves 3.86 kJ of energy in the form of heat. If the temperature of the bomb calorime
    13·1 answer
  • The Sun is the key driving force of weather and climate. Which of the following is true regarding how weather and climate compar
    12·2 answers
  • Which of the following is not a cation?
    14·1 answer
  • You have samples of the following metals of equal mass, which has the largest volume? Copper, density = 8.92 g/mL Mercury, densi
    5·1 answer
  • In an experiment trying to dissolve sugar in water, a person boils water in a pot on the stove and then puts the water and the s
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!