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
Novosadov [1.4K]
3 years ago
11

Boris is interested in conducting his first "real" scientific research. However, he is a bit overwhelmed with all of the possibl

e methods and designs. He's interested in exploring what kind of study apps his classmates use and which are the most effective. Boris is likely to gather quite a bit of data if he designs his study incorporating the most commonly used method in social science research, the __________.
Chemistry
1 answer:
11111nata11111 [884]3 years ago
5 0

Answer:

Questionnaire

Explanation:

This is an instrument for research usually in the form of questions with multiple choice answers with sole purpose of gathering information from respondents for research.

You might be interested in
<img src="https://tex.z-dn.net/?f=I_%7B2%7D" id="TexFormula1" title="I_{2}" alt="I_{2}" align="absmiddle" class="latex-formula">
gogolik [260]

Answer: I2 is the Oxidant; while the 2S2O3(-2) is the reductant.

Explanation:

An Oxidant is any substance that oxidizes, or receives electrons from, another; in so doing, it becomes reduced in oxidation number.

A Reductant thus exactly the opposite.

Note that the equation provided shows that Iodine (I2) received an electron to become NEGATIVELY CHARGED:

I2 --> 2I-.

The oxidation number reduced from 0 to -1.

In contrast, the oxidation number of 2S2O3(-2) increases from -4 to -2.

Thus, I2 is the Oxidant; while the 2S2O3(-2) is the reductant.

7 0
3 years ago
The solubility of k2cr2o7 in water is 125 g/l at 20 °c. a solution is prepared at 20 °c that contains 6.0 grams of k2cr2o7 in 50
Pachacha [2.7K]
The solubility is the guide to the maximum amount of solute that can be dissolved in a certain amount of solvent at a certain temperature to make a saturated solution. Any amount less than this would result to unsaturated, while any amount more would result to saturated.

6 g/(50 mL * 1 L/1000 mL) = 120 g/L

Since it is less than the solubility of 125 g/L, then <em>this solution is unsaturated</em>.
5 0
3 years ago
What contains elements with similar properties in the periodic table?
Nataly [62]
A) a column

example: earth alkaline metals
6 0
3 years ago
Read 2 more answers
The concentration of dye in Solution A is 26.609 M. You have 13 mL of water at your disposal to make the dilutions. The solution
exis [7]

Answer:

6,613 M

Explanation:

Dilution is the process of reducing the concentration of a solute in solution, mixing initial solution with more solvent.

The concentration of Solution B is:

23,881 M ×  = 9,552 M

Because the initial eight parts are diluted to 12+8 parts.

Thus, concentration of solution C is:

9,552 M ×  = 6,613 M

I hope it helps!

8 0
3 years ago
Calculate the lattice energy of CuBr(s) using a Born–Haber cycle.
In-s [12.5K]
The 2nd one I believe
Answer- 2nd
7 0
3 years ago
Other questions:
  • Determine which molecules are weak acids and weak bases, and place them in the appropriate category.
    14·1 answer
  • If traveling at equal velocities, which object would have the most momentum?
    12·1 answer
  • What is the product of a positron and electron combining then undergoing annihilation during the pet imaging process? a. two 511
    11·1 answer
  • HELP PLEASE!!!!!
    14·2 answers
  • Write a balanced equation and indicate the reaction type (single or double replacement, decomposition, or composition/synthesis)
    12·1 answer
  • PLEASE HELP What's the mass in grams of 0.442 moles of calcium bromide, CaBr2? The atomic
    11·1 answer
  • The percent composition by mass of an unknown compound with a molecular mass of 90.078 u is 40.002% C, 6.7135% H, and 53.284% O.
    6·1 answer
  • The first excited electronic energy level of the helium atom is 3.13 x 10-18 J above the ground level. Estimate the temperature
    6·1 answer
  • 10. What base unit of measurement is common to all systems?
    11·1 answer
  • Short note of modern periodic table
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!