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
Makovka662 [10]
3 years ago
14

Why do scientist record observations during an experiment?

Chemistry
1 answer:
Sloan [31]3 years ago
3 0

Observation is more than simply noticing something. ... Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories.

You might be interested in
Salt is dissolved in a flask of tap water. Distilling the mixture causes the salt to separate from the water. Which type of ener
Alik [6]
Heat energy is required.
In distillation, the solution is first heated, where heat energy is required, such as using a bunsen burner.
When the solution is heated, the water may reach its boiling point and evaporate. However, salt does not. When water molecules evaporates, it travels through a condenser that cools it down into liquid again. Therefore we get pure water. Salt is also obtained in the original beaker.
Therefore to first start this process, heat energy is required.
6 0
3 years ago
Read 2 more answers
A certain element has only two naturally occurring isotopes: one with 18 neutrons and the other with 20 neutrons. The element fo
melamori03 [73]

Answer:

[Cl-18]⁻ & [Cl-20]⁻

Explanation:

By definition isotopes are elements with the same number of protons by different number of neutrons. Elements X-18 & X-20 have 17 protons and represent Chlorine isotopes Cl-18 & Cl-20 each with 17 protons and 18 electrons to give the isotopes a -1 oxidation state. Both isotope of chlorine have 7 electron in its valence shell and 10 electrons in its core structure.  Gaining 1 electron fills the valence octet and establishes a -1 oxidation state.

7 0
2 years ago
You are carrying out an experiment in the lab to study the glycolysis pathway. To do this, a liver extract (which is capable of
monitta

Answer:

When C1 is labeled in glucose, it ends up in the methyl group of pyruvate.

Aldolase cleaves a hexose into two trioses.

[See the image attached].

Asterisk indicates the label.

When C1 is labeled in glucose, it ends up in the carboxyl group of pyruvate.

4 0
3 years ago
Compare and contrast elements and compunds
Firdavs [7]

Answer:

The similarity is that Elements and Compunds exist in stable form because of the bonds formed between their atoms. The difference is that an element is a material that consists of a single type of atom and a compound consists of two or more types of elements held together by covalent or ionic bonds.

Explanation: Google

3 0
3 years ago
In plant cells, how are chloroplasts and mitochondria related?
m_a_m_a [10]

Answer:

They are very similar because they both are very important for the sustenance of the cell. Both also help to provide energy for the cell, Chloroplasts can make its own food through photosynthesis and the mitochondria helps to break down the energy.

Explanation:

brainliest?

4 0
3 years ago
Other questions:
  • Calculate the volume of dry co2 produced at body temperature (37 ∘c) and 0.970 atm when 25.5 g of glucose is consumed in this re
    5·1 answer
  • Below are shown, for five metals, reduction reactions and standard electrode potential values. which of these metals is the leas
    13·1 answer
  • Which is an anion ca2+ ag+ o2- k+
    12·2 answers
  • Which of the following is an enumerated power in the Constitution?
    9·2 answers
  • Mrs. Sail's class wanted to observe a local pond. The class collected some pond water to analyze. When they placed a drop of the
    15·2 answers
  • Ammonia can be made by reaction of water with magnesium nitride: __ Mg3N2(s) + __ H2O(l) → __ Mg(OH)2(s) + __ NH3(g) When the eq
    11·1 answer
  • What are limitations of a conclusion? I am doing a science lab write-up and under the conclusion it asks for limitations of the
    10·1 answer
  • What is a gas’s temperature in Celsius when it has a volume of 25 L, 203 mol, 143.5 atm?
    15·1 answer
  • Which of the following is NOT a factor that determines how much energy we need?
    11·2 answers
  • A) ¿Cuáles son las partículas elementales que componen la materia, b) cuál es su ubicación, c) su carga eléctrica?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!