Basaltic magma is the ______

What are the precautions that should be token when using a photometer? please help me

Maksim231197 [3]

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

8 0

2 years ago

A person you are helping is awake and alert but is complaining of a severe headache, pain in their abdomen and nausea. you obser

Zinaida [17]

There are choices for this question namely:

a. What is your name and where do you live?
b. How much poison did you swallow?
c. How long have you been feeling this way?
d. What have you recently had to eat or drink?

The correct answer is "what have you recently had to eat or drink". This will confirm the suspicion by first ruling out potential reactive foods or drinks that may have caused a similar reaction (i.e. allergic reactions). If that is ruled out, then the probing about the history of intake of poison will come next in the interview.

6 0

2 years ago

For mitochondria where an uncoupler for oxidative phosphorylation is present, which statement is TRUE?

olga nikolaevna [1]

Answer:

The correct answer is statement d.

Explanation:

In oxidative phosphorylation that takes place in mitochondria, the uncouplers prevent the coupling in between the phosphorylation reactions and electron transport, and therefore, prevent the synthesis of ATP without influencing the ATP synthase and respiratory chain.

The uncoupler always exhibits its influence on the synthesis of ATP. The 2,4-dinitrophenol functions as an uncoupler at the time of oxidative phosphorylation. The NADPH and FAD functions as an electron carrier.

3 0

3 years ago

There is general agreement that species classified as Homo should share all of these characteristics EXCEPT

butalik [34]

Large brain size, small and flat face, small jaws and teeth, exploitation of diversity are some common features of homo species. Different homo species have different shapes of skulls.

Homo, genus of the family Hominidae (order Primates), is distinguished by a relatively large cranial capacity, limb structure adapted to a habitual erect posture and a bipedal gait, well-developed and fully opposable thumbs, hands capable of power and precision grips, and the ability to make standardized precision tools by combining one tool with another.

Different Homo species are differentiate from skull shapes. Their body shapes also tends to vary. This is due to different environment conditions in different time zones.

However, Homo species show many common characteristics such as Large brain size, small and flat face, small jaws and teeth.

#SPJ1

To learn more about Homo species follow this link:

brainly.com/question/10169640?referrer=searchResults

4 0

1 year ago

Please help ASAP please, I can't answer these questions please help

Soloha48 [4]

Answer: Sea walnuts are marine invertebrates. They belong to the genus Mnemiopsis.

Explanation:

These animals have stinging tentacles like jelly fish and they often cast up or come to the sea shores where if they come in contact with humans can harm them by stinging.

The barrier if kept along the side of the sea shore and not allowing humans to reach to the shore can help in preventing the harm from these animals. The introduction of the predatory animals in the sea can also help in reducing their population.

The three benefits for removing the sea walnut:

1. The population of other species will increase as sea walnut is an invasive species.

2. The balance of the marine ecosystem can be maintained.

3. Humans can be protected from the harm caused by these animals.

8 0

3 years ago

Basaltic magma is the _______ type of magma.