What is scientific method?

Answers

Answer 1

Answer: The scientific method is a method of procedure that has characterized natural science since the 17th century. It is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. It has a systematic process of experimenting, observation, hypothesis making, conclusion, etc.

Related Questions

HCl solution, about 250 mL in volume. The pH of the solution is 1.37. Calculate the molar concentration of HCl in this solution. Please use the scientific presentation of the numerical answers (i.e., 1.23x 102), and round your answers to two decimal places.
What produces hydrogen ions as The only positive ions in aqueous solution
How does a Geiger counter measure radiation levels
The melting points of canola oil, corn oil, sunflower oil, and peanut oil are 10° C, -11° C, -17° C, and -2° C, If you cool a mixture of these oils to 5°C, which one can you separate easily?a. corn oil b. canola oilc. peanut oild. sunflower oil
Many breads arc made by adding yeast to dough, causing the dough to rise. Yeast is a type of microorganism that produces the catalyst zymase, which converts glucose, C6H12O6' to ethanol and carbon dioxide gas. The balanced equation for this reaction is shown below.C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) 73 Draw a structural formula for the ethanol formed during this reaction. 74 Describe how the catalyst, zymase, speeds up this reaction. 75 Determine the total mass of ethanol produced when 270. grams of glucose reacts completely to form ethanol and 132 grams of carbon dioxide.

For gamma radiation, what stops its penetrating abilities?

Answers

lead, concrete or steel. Gamma rays have a very small wavelength and therefore can penetrate most objects including walls, windows and the like. To fully protect an object inside an enclosure, heavily reinforced feet of concrete, steel and/or lead should be sufficient.

Answer:

YES! The answer is LEAD (PLATO)

Explanation:

The smallest unit that retains the properties of an element is a(n) _____. atom molecule proton compound neutron

Answers

The answer to your question is ATOM.

How many electrons would be found in an isotope of silicon 29

Answers

14 electrons15 neutrons

Answer: 14

Explanation: Founders Educere answer.

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What is the concentration of O2(g), in parts per million, in a solution that contains 0.008 gram of O2(g) dissolved in 1000. grams of H2O(l)?

Answers

concentration of O₂ dissolved in H₂O can be written as ppm

ppm stands for parts per million - mg/kg

the amount of mg in 1 kg of solution

the mass of O₂ - 0.008 g

1000 mg equivalent to 1 g

therefore mass of O₂ in mg - 0.008 g x 1000 mg/g = 8 mg

the mass of water is 1000 g

1000 g is equivalent to 1 kg

mass of water in kg - 1000 g / 1000 g/kg = 1 kg

there's 8 mg of O₂ in 1 kg of water

therefore concentration of O₂ is - 8 mg/kg

also can be written as 8 ppm

answer is 8 ppm

Answer : The concentration of $O2(g)$ in parts per million is, 8 ppm

Solution : Given,

Mass of oxygen gas (solute) = 0.008 g

Mass of water (solvent) = 1000 g

First we have to calculate the mass of solution.

Mass of solution = Mass of solute + Mass of solvent = 0.008 + 1000 = 1000.008 g

Now we have to calculate the concentration of $O2(g)$ in parts per million.

ppm : It is defined as the mass of solute present in one million $(10^6)$ parts by mass of the solution.

$ppm=\frac{\text{Mass of solute}}{\text{Mass of solution}}* 10^6$

Now put all the given values in this expression, we get

$ppm=(0.008g)/(1000.008g)* 10^6=7.99=8ppm$

Therefore, the concentration of $O2(g)$ in parts per million is, 8 ppm

If 455-mL of 6.0 m HNO3 is used to make a 2.5L dilution, what is the molarity of the dilution

Answers

2.5 L * 1000 = 2500 mL

C₁ * V₁ = C₂ * V₂

6.0 * 455 = C₂ * 2500

2730 = C₂ * 2500

C₂ = 2730 / 2500

C₂ = 1.092 M

hope this helps!

Identify the isotope that has atoms with 28 neutrons, 23 protons, and 23 electronsA. ^28 Ni
B. ^23 V
C. ^23 Mn
D. ^51 Sb
E. ^51 V

Answers

Answer:

E. ^51 V

Atomic number (number of protons in the nucleus): 23

Atomic symbol (on the periodic table of the elements): V

Atomic weight (average mass of the atom): 50.9415

Density: grams per cubic centimeter

Phase at room temperature: Solid

Melting point: 3,470 degrees Fahrenheit (1,910 degrees Celsius)

Boiling point: 6,165 F (3,407 C)

Number of isotopes (atoms of the same element with a different number of neutrons): 2; one stable V-51; one radioactive V-50

Most common isotopes: V-51 (99.75 percent natural abundance)

Other Questions

All organic molecules have what element in common

Nitrogen gas has the chemical formula N2. One molecule of nitrogen gas is made up ofA. one atom of nitrogen and one atom of oxygen.B. two atoms of nitrogen and one atom of oxygen.C. two atoms of nitrogen.D. one atom of nitrogen.

Write the name of each of the following Ionic Compounds: Ba3(PO4)2 , MgSO4 , PbO2

How much 0.05 M HCl solution can be made by diluting 250 mL of 10 M HCl?