Answer:
PRECAUTIONS FOR USING A SPECTROPHOTOMETER :
1 . By allowing the lamps and electronics to warm up
2.By cleaning up any spills inside the cuvette compartment
3.By carrying out the set-up procedure in the correct order
4.By ensuring that %T or transmission is used as appropriate
5.By closing the door to the cuvette compartment before reading the result
6.By performing calibration checks after set up
7.By wiping fingerprints and spilt sample off the outside of the cuvette before measuring
8.By using the correct wavelength
PRECAUTIONS FOR USING A FRAME PHOTOMETER:
1. Do not move or Carry the unit when in use or connected to the mains electricity supply
2. There should be sufficient time for the chimney to cool before handling
3. Do not use acetylene with the flame photometer
4. Over adjustment of the fuel valve will cause excess flame
Do not position the product so that it is difficult to disconnect from the mains supply
5. Do not cover the chimney whilst in use.
6. Do not block or obstruct ventilation slots /airways
7. Do not operate or handle any part of the product with wet hands
I HOPE THIS WILL HELP AND IF NOT LET ME KNOW
How is nuclear energy generated?
Answer:
Nuclear energy is generated either by Fission of a nucleus into two or more fragments , or by Fusion of two nuclei into one. The nuclear energy is used to superheat steam and then drive a rotor axle inside a generator and then generate electricity.
Answer:Nuclear power comes from nuclear fission
Explanation:Nuclear power plants heat water to produce steam. The steam is used to spin large turbines that generate electricity. Nuclear power plants use heat produced during nuclear fission to heat water. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy.
The compound Iron (II) sulphate consists of A.Iron and sulphur B. Iron and
silicon C. Iron and silver D. Iron and tin
Answer:
A. Iron and sulphur
Explanation:
It also contains oxygen
[tex]{ \bf{formula}} : { \sf{FeSO_{4}}}[/tex]
Qué es una fuente renovable de energía?
Answer:
Una fuente de energía renovable significa energía que es sostenible, algo que no se puede agotar o que es interminable, como el sol. ... Significa fuentes de energía que son alternativas a las fuentes no sostenibles más comúnmente utilizadas, como el carbón.
what are the effects of the even on each of the Earth's four spheres?
Answer:
An event can cause changes to occur in one or more of the spheres, and/or an event can be the effect of changes in one or more of Earth's four spheres. This two-way cause and effect relationship between an event and a sphere is called an interaction.
Water is an example of an input in a plant system true
or false
Answer:
In think True
Explanation:
Answer: it is TRUE
Explanation: because water is one raw materials which plant uses in photosynthesis to produce their food
HOPE THIS HELPSS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is a season?
a period in which leaves age
a period of reduced growth in plants
a part of the year that has a unique amount of daylight or precipitation
the part of the year in which a plant drops its leaves
Answer:
a part of the year that has a unique amount of daylight or precipitation
Explanation:
what are the three layers of soil??
Answer:
the surface horizon (A), the subsoil (B), and the substratum (C)
Explanation:
what is astraphobia...............
Answer:
Astraphobia, also known as brontophobia, is a kind of phobia characterized by an intense fear of extremely loud but natural noises in the environment. Namely, lightning and thunder.
Pls help me with this question:) (I took a picture of the questions)
3. Carbon is waste inside the cell and must be removed from cell (im not entirely sure if thats the right one tho :) )
Which organism receives the least amount of energy from the producer?
Explanation:
hope it is helpful for you
define terms organic molecules and inorganic molecules
Answer:
Organic molecules are molecules that have non-carbon atoms inside them. And, Inorganic molecules are molecules which don't consist of any carbons at all, unlike organic molecules.
Answer: Organic molecules contain carbon particles in them but inorganic molecules have no carbon particles in them
Explanation: In organic molecules they contain a carbon-hydrogen bond mostly found or created in humans or living organisms but inorganic molecules contain none of them.
Organic molecules are molecules which are able to decompose due to what they contain e.g carbohydrates.....
inorganic molecules cant decomposes because they contain no carbon -hydrogen bond.
HOPE THIS HELPSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!
what macromolecules are found in a hot dog ?
Answer:
contain nitrites and/or nitrates
Explanation:
The meat is comprised of beef, pork, or turkey, which are all forms of protein (again, amino acid polymers). There is also a fair amount of fat (animal fat tends to be in the form of triglycerides) and some degraded genetic material from the original organism now being turned into food. :) In addition to these things, the hot dog may contain some food coloring and will likely contain some preservatives - a common preservative for meats (to prevent botulism and rancidity) is sodium nitrite
I WILL GIVE BRAINLIEST
Process A → Decaying / Decomposition
Process B → Nitrification
The root nodules are important in the nitrogen cycle as they help in intaking of nitrogen and other minerals like phosphorous, potassium, sodium etc. from the soil.
Hope it helps you
classification of plant moss with two characteristics
Answer:
Mosses slow down erosion, store moisture and soil nutrients, and provide shelter for small animals and food for larger herbivores. Mosses have green, flat structures that resemble true leaves, which absorb water and nutrients; some mosses have small branches.
Nucleic acids are composed of:
a: a phosphate group, a pentose sugar, a nitrogen base
b: a phosphate group, a pentose sugar, a carboxylic acid
c: a pentose sugar, a nitrogen base, an R group
d: a nitrogen base, an amino acid group, a carboxylic acid
Answer:
a phosphate group, a pentose sugar, a nitrogen base
Explanation:
nucleic acid is a polymeric macromolecule made up of repeated units of monomeric 'nucleotides' composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
Will Mark Brainliest, PLS HELP!
Use the image below to answer the question.
The illustration shows the mitochondrial intermembrane space. Molecules enter and exit enzymes. Molecule upper N upper A upper D upper H passes through enzyme upper N upper A upper D upper H Reductase releasing upper H superscript + baseline and upper N upper A upper D superscript + baseline. A blue arrow starts at upper N upper A upper D superscript + and goes through enzyme Ubiquinone then enzyme Cytochrome Reductase, an upper H superscript + baseline is released. The arrow continues through enzyme Cytochrome c and enzyme Cytochrome Oxydase, another upper H superscript + baseline is released. The formula 2 upper H + one-half upper O subscript 2 baseline is to the left of enzyme Cytochrome oxydase with an arrow pointing to the other side. The arrow meets with the arrow from upper N upper A upper D superscript + baseline at upper H subscript 2 baseline upper O. To the right is upper A upper T upper P synthase, upper A upper D upper P + upper P subscript 1 baseline have an arrow going under upper A upper T upper P synthase, an upper H superscript + baseline arrow points to the arrow, the result is upper A upper T upper P.
Which step of cellular respiration is shown in the image?
glycolysis
lactic acid fermentation
electron transport chain
Krebs cycle
Answer:
electron transport chain
Explanation:
just took the quiz
The image shows the C. electron transport chain (ETC) step of cellular respiration
What is the electron transport chain ?The ETC is the final stage of cellular respiration, where oxygen is used to create ATP. NADH and FADH2, which are produced in the Krebs cycle, donate electrons to the ETC.
The electrons are passed through a series of proteins, which release energy that is used to pump protons across the mitochondrial membrane. This creates a proton gradient, which is used to power ATP synthase to produce ATP
The Krebs cycle and lactic acid fermentation are both earlier steps in cellular respiration. In the Krebs cycle, pyruvate is oxidized to produce NADH, FADH2, and ATP. In lactic acid fermentation, pyruvate is converted to lactate, producing NADH.
Find out more on the electron transport chain at https://brainly.com/question/29911753
#SPJ3
Sheila bought a hamster in a small pet shop. To feed it properly, she
needs to know its weight. If the hamster has a mass of 190.0 g, what is
its weight?
Answer:
0.19 kilogram
Explanation:
may this answer is helpful for you
Conoces ecosistemas con sucesión y secundaria en el país?
Answer:
Image result for Conoces ecosistemas con sucesión y secundaria en el país?
En la sucesión primaria la roca recién formada o recién expuesta es colonizada por primera vez por seres vivos. En la sucesión secundaria, un área anteriormente ocupada por seres vivos se ve alterada o afectada, y luego se vuelve a colonizar después de la perturbación.
Explanation:
Image result
La sucesión primaria es aquella que se desarrolla en un biotipo virgen, es decir, una zona carente de una comunidad preexistente, como ocurre en las dunas, nuevas islas volcánicas, retroceso de glaciares,
If, for one day, ice water decided to be denser than liquid water, how will this affect our planet?
RNA differs from DNA in the type of a) purines & pyrimidness b) sugars & Purmes c) sugar & pyrimidness. dl pyrimidness (please give right answer only)
Answer:
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
So, the answer is
Explanation:
Can someone help me with question 8 and 9
Answer:
8. A
Explanation:
they are moved by strong, steady winds called unidirectional winds, which move from the south west to the north east
Explanation:
8. The same direction as the wind blows
9.Their source was glacial deposits
produce more white blood cells
Question 23 (1 point)
Whaite blood cells help to destroy the infection in the body.
True
False
Question 24 (1 point)
Its true
hope you like it
thank you ❤️
what hypothesis is being tested in this experiment?
Answer:
According to the web "
Hypothesis testing experiments
In hypothesis testing, an analyst tests a statistical sample, with the goal of providing evidence on the plausibility of the null hypothesis. Statistical analysts test a hypothesis by measuring and examining a random sample of the population being analyzed. ... However, one of the two hypotheses will always be true."
Brainiest plz
que es el eslabón perdido
Answer:
bonjour
please try and express what you asking in English
do fertilizer also increase the number of bacteria as they do for plants, or do they increase when the decomposition of plants occur?
Answer:
my views
Explanation:
bacteria helps in the decomposition of wastes ,and after the decomposition of waste material by bacteria it leads to the creation of nitrogen's oxides and this nitrogen's oxides works as fertilizer which leads to the good crops and we don't need of any chemicals' made fertilizer
Answer:
Farmers can add nitrogen fertilizer to produce better crops, but too much can hurt plants and animals, and pollute our aquatic systems.
Explanation:
Exosperm is the food storage tissue in an anthophyte seed that supports development of the growing embryo.
Please select the best answer from the choices provided
OT
OF
Answer:
the answer of this questions is ot
Explanation:
the answer is anove
The blood pressure of a person is 140/100 mm of Hg, what does it mean?
Answer: When is blood pressure considered high? Normal blood pressure is under 120/80. From 120/80 to 139/89 is pre-hypertension. The threshold for high blood pressure is 140/90, while anything over 180/110 is hypertensive crisis – an emergency.
Explanation:
What is the process of nitrification?
Bacteria converts ammonia into nitrites and nitrates that plants can use.
Fungi convert nitrogen in dead plants into ammonium, which converts proteins into ammonia.
Nitrogen is converted into a useable form through lightning fixation.
Plant enzymes reduce nitrogen compounds into amino acids.
Answer:
Bacteria converts ammonia into nitrites and nitrates that plants can use.
Nitrification is a microbial process by which reduced nitrogen compounds (primarily ammonia) are sequentially oxidized to nitrite and nitrate. Ammonia is present in drinking water through either naturally-occurring processes or through ammonia addition during secondary disinfection to form chloramines.
Thank You
Lab: Diffusion Across a Semi-permeable Membrane Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately. Your work will not be submitted to your teacher until you click Submit.
Answer:
what is the question. ??
Answer:
Experiment to demonstrate diffusionmaterials:a 250cm³ glass beaker,a long tube,a holed rubber bung or stopper,a colored crystal such as potassium permanganate and water.method: set up the experimentfirst insert one end of the tube halfway into the rubber stopper place the rubber stopper and glass tube into the beaker, keeping the rubber firmly pressed to the bottomintroduce the colored crystal of potassium permanganate down the tubeclose the open end of the glass tube with a finger and fill the beaker halfway with waterwith one end of the glass tube still closed,gently lift the glass tube and rubber stopper out of the beaker without disturbing the crystalobserve what happens in the beaker until there are no further changesobservation: at the beginning,the clear water and colored crystal are each clearly visibleafter sometime,the color of the crystal starts spreading out of the water still remains cleareventually,all the water is evenly colored by the color of the crystalconclusionthe particles spread out in the water by the process of diffusion.I hope this helps
100 points!!!! pls help!!!
A football player gets tackled during the game, which of the following body systems is responsible for protecting their organs?
circulatory system
reproductive system
skeletal system
nervous system
Answer:
Skeletal system
Explanation:
the bones of the skeleton protect the internal organs and reduce the risk of injury on impact. For example, the cranium protects the brain, the ribs offer protection to the heart and lungs, the vertebrae protect the spinal cord and the pelvis offers protection to the sensitive reproductive organs.
Answer:
I believe your best choice from the given choices above would be C) skeletal system. The bone structure within the human body, such as the rib cage for instance, provides protection for our organs and takes more impact rather than any of our organs. Without our skeletal system, we would have zero protection for our organs, increasing the chance of more internal body damage.
