Student performs experiments on acids and bases. Which is not a scientific experiment? She uses an acid-base indicator to measure the pH of four different solutions.

She mixes two solutions and measures their pH before and after.

She asks her lab partner which base he thinks is hardest to study. <-- my answer

She measures the temperature of a solution before and after adding H2SO4.

Answers

Answer 1

Answer:

Answer: Option (c) is the correct answer.

Explanation:

An experiment conducted by following a detailed and organized series of steps in such a manner that its result will reject or validate the hypothesis.

For example, using an acid-base indicator will help to measure the pH of a solution.

A scientific reaction is performed in controlled conditions with proper precautions unless it could be dangerous to perform the experiment.

Therefore, we can conclude that she asks her lab partner which base he thinks is hardest to study is not a scientific experiment.

Answer 2

Answer: she ask her lab partner which base he thinks is hardest to study
you are correct because that not an experiment its a question

Related Questions

What does the author list in the passage?a scientists who study electromagnetic radiation b different types of electromagnetic spectrums c different types of electromagnetic radiation d the differences between radio waves and microwave
What are cathode rays made of
The smallest part or fragment of an atom
Describe the differences in the atomic structures of a hydrogen atom and a helium atom.I need a paragraph for my homework, would help a lot! thanks : )
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine:Step 1: Cl2(g)⇌2Cl(g)(fast)Step 2: Cl(g)+CHCl3(g)→HCl(g)+CCl3(g)(slow)Step 3: Cl(g)+CCl3(g)→CCl4(fast)What is the overall rate constant?

Plz answer as fast as you cansolid sodium iodide does not conduct electricity
why does sodium iodide solution conduct electricity

2) when sodium iodide is electrolysed iodine is formed at the positive electrode
complete and balance the half equation for the formation of iodine
........ I- = I2 + ........ e-

3) what is formed at the negative electrode when sodium iodide solution is electrolysed
explain why

Answers

the solution conducts electricity because it has free delocalized which are free to move.

Which type of rock has sand, minerals,and shells

Answers

Sedimentary rock has sand, minerals, and shells. They are smashed together, or cemented, together.

That would be sedimentary rock

5.The synthetic polymer which can be used as a substitute for wool for making sweaters and shawls isa. Nylon b. polyester c. terylene d. acrylic

Answers

Answer:

D. Acrylic is a substitute wool

What does the . mean in Fe2O3.H2O ???

Answers

Alright so
The "Fe" is just the symbol for Iron. Due to me not knowing if it is sitting above or below the baseline, but I'll assume it's below. This means that "Fe2" means there are 2 iron atoms.

And then the O3 represents 3 oxygen atoms in the compound.

And then the H2O is just the chemical formula for water, which consists of 2 hydrogen atoms and one oxygen atom.

1.00 L of gas at a standard temperature and pressure is compressed to 473mL. What is the new pressure of the gas?

Answers

Answer:

The pressure of the gas is 2.11 atm.

Explanation:

From the given,

$V_(1)=1.00\,L$

$P_(1)=1\,atm$

$P_(2)=?$

$V_(2)=473\,ml=0.473\,L$

$P_(1)V_(1)=P_(2)V_(2)$

$(1)(1)=(0.473)(P_(2))$

$P_(2)=((1)(1))/(0.473)=2.11$

Therefore, The pressure of the gas is 2.11 atm.

Final answer:

Boyle's law is used to find the new pressure after the gas is compressed from 1.00 L to 0.473 L. The original pressure is 1 atm at Standard Temperature and Pressure (STP). After the compression, the new pressure is approximately 2.12 atm.

Explanation:

The question relates to gas laws, specifically Boyle's law, which states that the pressure of a gas is inversely proportional to its volume when the temperature and amount of gas are held constant. At Standard Temperature and Pressure (STP; 273.15 K and 1 atm), one mole of an ideal gas occupancies a volume of about 22.4 L. In this case, the initial conditions are at STP, with a gas volume of 1.00 L, equating to a pressure of 1 atm. When this volume is compressed to 473 mL (or 0.473 L), the pressure can be determined using Boyle's law, i.e., P1V1 = P2V2. After substituting the values, we can solve for the new pressure (P2) which will be approximately 2.12 atm.

Learn more about Boyle's Law here:

brainly.com/question/21184611

#SPJ3

Titanium has three common isotopes: 46Ti (8.0%) , 48Ti (73.4%) , 49Ti 5.5%, 50Ti ( 5.3%). What is the average atomic mass of titanium? Work please too!

Answers

you can use its mass number, A , as an approximation of its atomic mass.
In this case, you will have
46
Ti → ma ≈ 46 u

47
Ti →ma≈47 u

48
Ti →ma≈48 u

49
Ti →ma≈49 u

50
Ti →ma≈50 u
Now, the average atomic mass of titanium is calculated by taking the weighted average of the atomic masses of its stable isotopes.
Simply put, each isotope
i
will contribute to the average atomic mass of the element in proportion to its decimal abundance, which is simply the percent abundance divided by
100

The decimal abundances for these five isotopes will be
46
Ti:
8.0/100= 0.080
47
Ti: 7.8/100=0.078

48
Ti: 73.4/100 =0.734
49
Ti: 5.5/100=0.055
50
Ti: 5.3/100=0.053
The average atomic mass of titanium will thus be avg. atomic mass =46 u ×0.080+47 u ×0.078
+48 u ×0.734+49 u × 0.055 + 50 u × 0.053
avg. atomic mass
= 47.923 u

Other Questions

What is a group of organisms that look alike and can reproduce among their selfs ?

Explain why an empirical formula alone cannot be used to derive the actual molecular formula for a given compound. Provide one or more examples.

How does the mass of the electron compare to the masses of the proton and neutron?

If you bend a straight chain of carbons, do you make a different structure? Why or why not?