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
Flauer [41]
3 years ago
12

Which of the following questions can be answered by science?

Chemistry
2 answers:
Irina18 [472]3 years ago
7 0

Answer:

A. What is the composition of air?, B. Should the driving age be reduced?, D.

Should students be allowed to bring toys to school? Answer: A,B,D.

Hunter-Best [27]3 years ago
6 0

Answer:

<h2><em><u>(</u></em><em><u>a</u></em><em><u>)</u></em><em><u>,</u></em><em><u> </u></em><em><u>(</u></em><em><u>b</u></em><em><u>)</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>(</u></em><em><u>c</u></em><em><u>)</u></em><em><u> </u></em><em><u>I</u></em><em><u> </u></em><em><u>guess</u></em></h2>
You might be interested in
Which phase change is the opposite of boiling?
cestrela7 [59]
Condensation is the opposite of boiling
3 0
3 years ago
What atom has 19 protons and 20 neutrons
Over [174]

Potassium Does! Hope that helps

3 0
2 years ago
Read 2 more answers
A chemist must prepare of hydrochloric acid solution with a pH of at . He will do this in three steps: Fill a volumetric flask a
Eva8 [605]

Answer:

1.7 mL

Explanation:

<em>A chemist must prepare 550.0 mL of hydrochloric acid solution with a pH of 1.60 at 25 °C. He will do this in three steps: Fill a 550.0 mL volumetric flask about halfway with distilled water. Measure out a small volume of concentrated (8.0 M) stock hydrochloric acid solution and add it to the flask. Fill the flask to the mark with distilled water. Calculate the volume of concentrated hydrochloric acid that the chemist must measure out in the second step. Round your answer to 2 significant digits.</em>

Step 1: Calculate [H⁺] in the dilute solution

We will use the following expresion.

pH = -log [H⁺]

[H⁺] = antilog - pH = antilog -1.60 = 0.0251 M

Since HCl is a strong monoprotic acid, the concentration of HCl in the dilute solution is 0.0251 M.

Step 2: Calculate the volume of the concentrated HCl solution

We want to prepare 550.0 mL of a 0.0251 M HCl solution. We can calculate the volume of the 8.0 M solution using the dilution rule.

C₁ × V₁ = C₂ × V₂

V₁ = C₂ × V₂/C₁

V₁ = 0.0251 M × 550.0 mL/8.0 M = 1.7 mL

3 0
3 years ago
A covalent bond forms
Natalka [10]
B.) When atoms share electrons/......
8 0
3 years ago
A dark purple liquid is diluted by adding water.
alexandr402 [8]

Answer: The process is diffusion.

Explanation:

a dark liquid will have the highest concentration of dark purple atoms/molecules so it gives a concentrated colour.

when water is added to it, the colourless water molecules fill up the gaps between the purple particles and so their colour fades and becomes lighter and lighter as we add more water. see the image attached where imagine the red particles are water and the blue particles are purple particles. thats why the colour fades.

6 0
1 year ago
Other questions:
  • Which of the following is correct abbreviated si unit describing the amount of a substance
    14·2 answers
  • Considering a mixture of soil and water and compare it to a colloid, such as milk. Which property best differentiates these two
    6·2 answers
  • How would you find how many unpaired electrons are in a compound? Ex. unpaired electrons in aluminum in aluminum II oxide.
    12·1 answer
  • In order to jave 2.2 moles of potassium oxide, how many grams of potassium are needed
    15·1 answer
  • At 25 °c only 0.0260 mol of the generic salt ab3 is soluble in 1.00 l of water. what is the ksp of the salt at 25 °c?
    9·2 answers
  • Write the balanced chemical equation for lab preparation of oxygen gas by using heat​
    8·2 answers
  • How do the scientist know that cells exist
    10·1 answer
  • Within which of Linnaeus's groupings are organisms most closely related to one another?
    9·1 answer
  • How many milliliters of 0.25M H2SO4 can be prepared from 57 mL of a 3.0M solution of H2SO4?
    15·1 answer
  • What kind of chemical bond is established in hydrochloric acid?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!