Which is the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid
when doing fieldwork?
to wash rock samples to make them easier to study
to wear away large areas of rock to see what is underneath
to test for the presence of carbonate minerals in a rock
to use as an emergency eyewash in case rock dust gets in the eyes

Answers

Answer 1

Answer:

C, to test for the presence of carbonate minerals in a rock

Explanation:

I did this a few weeks ago on Edge. Hydrochloric acid isn't for rock washing, they wouldn't use it to wear away rocks since it'd ruin the sample I think, and you will go blind if you put it in your eyes

Answer 2

Geologist carry dropper bottle filled with hydrochloric acid when doing fieldwork is to test for the presence of carbonate minerals in a rock.

Test for carbonate minerals

Hydrochloric acid is used to test for presence of carbon iv oxide in compounds.

When hydrochloric acid reacts with carbonates, it produces effervescent due to the prensence of carbon iv oxides in the compound.

Geologist will use this acid (hydrochloric acid) to check if the rock sample contains carbonate minerals.

Thus, the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid when doing fieldwork is to test for the presence of carbonate minerals in a rock.

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Related Questions

What is displacement of metals?

Answers

Search Results
Featured snippet from the web
Displacement reactions. Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal. An example can be seen below.
It occurs when a metal from the electrochemical series is mixed with ions of a metal lower down in the electrochemical series.

What type of mutation has occurred?
Below are two sequences of a segment of DNA.
Normal sequence TGA CAC TAG
Mutated sequence TGA CCT AG
Deletion mutation
Nonsense mutation
Insertion mutation
Substitution mutation

Answers

Answer:

substitution mutation

Answer:

substitution

Explanation:

ATP molecule What molecule(s) is produced by these activities?

Answers

Answer:

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules

Explanation:

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules

Which of following are natural factors that can cause extinctions?


I. climate change

II. asteroid impacts

III. volcanic eruptions

IV. changes in oxygen levels in seawater

A.

I, II, III, and IV

B.

I, II, and III only

C.

II and III only

D.

I and IV only
i need help asap

Answers

Answer:

A is the answer. so it's correct

The actual exchange of gas occurs at the

Answers

Answer:

gas station, or butt

Explanation:

the gas station can fill your car and exchange gas with the pump. when you fart you exchange gas with the air.

what systems do you use when you have a scrape knee

Answers

Answer:

cleaning alcohol. polisporin. and bandades

Explanation:

Answer:

You use the immune system

Explanation:

it play a crucial role in the process of wound healing

The pH of a solution determines the charge of certain R groups. The pH of pineapple fruit ranges from 3.5 to 5.2. Predict the effect on the activity of bromelain if it is used in a product with a pH of 11.

Answers

Answer:

The activity of Bromine will reduce

Explanation:

Bromine is found in pineapple stem with pH range of 3.5- 5.2 this implies that the environment where bromine is found is acidic hence when taken to a product whose pH is 11 which is basic then its performance will be low because its can only function well in an acidic medium.

pH ranges tell whether a substance is acidic, basic or neural.

Acid range from 3.5-6

7- neutral

8 above is basic

This is about knowing the behaviour of some elements in different PH Values.

The activity of bromelain will decrease in a product with a pH of 11. .

We are told that the PH of pineapple fruit is of the range of 3.5 - 5.2. In reality, this also includes it's stems and the plants as well. This falls into the acidic range because PH less than 7 is acidic.Now, these stems, plants and fruits of pineapple usually contain bromelain. This implies that bromelain does its' work in an acidic environment since pineapple has an acidic PH.

If bromelain is used in a product with a PH of 11, it means it is being used in a basic environment because a PH greater than 7 indicates a basic nature. This means bromelain will not function as well as it did in the acidic environment and as such the activity of bromelain here would decrease.

We can now conclude that the activity of bromelain will decrease in a product that has a PH of 11.

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When population grows past the ecosystem’s carrying capacity, what happens to the population?
A. Continues to grow
B. The population starts to die off to return to carrying capacity
C. The population will go extinct due to lack of resources
D. The population grows, then finds a new carrying capacity.

Answers

Answer:B animals will die since there arent enough resources for everyone until there is enough for the remaining population to  use

When Population growth past the ecosystem’s carrying capacity, then the population starts to die off to return to carrying capacity (Option B).

The carrying capacity refers to the maximum number of individuals of a population that can be supported by particular environmental conditions.

Carrying capacity depends on both biotic factors (e.g., presence of predators, food availability, etc.) and abiotic factors (e.g., water availability, living space, etc).

When a population passes its carrying capacity, then the environment becomes unsuitable for the individuals of that population to survive.

In conclusion, when population growth past the ecosystem’s carrying capacity, then the population starts to die off to return to carrying capacity (Option B).

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A. 25%
B. 50%
C. 75%
D. 100%

Answers

Answer:

B. 50%

Explanation2 of the offspring are heterozygous (Yy). 2/4 = 50%

Answer: 50%

Explanation:

Help.. 14 _____ are substances that can cause cancer.
15
Scientists join cancer cells with antibody-producing white blood
cells to produce _____.

Answers

Answer:

14. Carcinogenic

15. Not sure. I believe it is monoclonal antibodies.

the following facts are true about resource A


. it grows in nature and takes about five years to reach a mature size.

.it can be replanted after it is cut down

resource A is most likely an.

A. inexhaustible resource

B. nonrenewable resource

C. recycled material

D. renewable resource​

Answers

Answer:

Option D, renewable resource

Explanation:

A renewable resource is the resource  which can be replenished after every use. Or in general the time taken by it to replenish must be small. For instance, fossil fuels too are renewable but the time taken by them to renew is too high and hence they are also considered as non-renewable.  

Also renewable resources can be used again and again.  

Hence, option D is correct

Suzy knows that an individual’s sex is determined by sex chromosomes. She knows that females have two X chromosomes and males have one X and one Y chromosome. She creates the Punnett square cross below to show sex inheritance. She wants to know which parent determines the sex of a baby---is it the mother, father, or both? Complete this cross. What would you tell Suzy? Why? Suzy knows that an individual’s sex is determined by sex chromosomes. She knows that females have two X chromosomes and males have one X and one Y chromosome. She creates the Punnett square cross below to show sex inheritance. She wants to know which parent determines the sex of a baby---is it the mother, father, or both? Complete this cross. What would you tell Suzy? Why?

Answers

Both. When you put xx and xy on a punnet square there are equal amounts male and female

She creates the Punnett square cross below to show sex inheritance. She come to know that both parent determines the sex of a baby and it is when you put xx and xy on a punnet square there are equal amounts male and female.

How Human sex gets decided?

Human sex gets decided by the function of SRY gene which possessed by with or without of Y chromosome. The hormone of anti-mullerian and testosterone produced from cells when activating the SRY gene. It generally confirms the development of single-male reproductive systems.

The scenario in humans, the sex ration gets affected by the male parent's hormone level. Also, in XY sex evaluation system, the sperm of male takes part in X or Y chromosome whereas the ovum from female contributes to X chromosome. This greatly results in offspring - either male (XX) or female (XY).

Therefore, She creates the Punnett square cross below to show sex inheritance. She come to know that both parent determines the sex of a baby and it is when you put xx and xy on a punnet square there are equal amounts male and female.

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which bone layer holds calcium and other minerals

Answers

Answer:

In addition to its mechanical functions, the bone is a reservoir for minerals (a "metabolic" function). The bone stores 99% of the body's calcium and 85% of the phosphorus. It is very important to keep the blood level of calcium within a narrow range. If blood calcium gets too high or too low, the muscles and nerves will not function. In times of need, for example, during pregnancy, calcium can be removed from the bones. This process is carefully regulated by hormones and is discussed more completely in the section about hormones.

Explanation:

Answer:

its the um (dont quote me ) phophorus im pretty sure

Explanation:

Which best describes the different features or a plant life cycle

Answers

Answer:

The different features of the plant cycle can be based described as zygote is a diploid cell that is produced by fertilization. Explanation: zygote is formed due to the fusion of the female and male gamets. This is a type of sexual reproduction that takes place in plants.

Explanation:

2. What are the two types of ecological succession?

Answers

Answer:

There are two main types of succession, primary and secondary. Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.

Explanation:

Answer:

Ecological succession is a process of change in ecosystems that takes place over time, and that we can observe both in time and in space. ... There are two types, the primary sequence and the secondary sequence.

"I hope it helps you it was a pleasure to help you".

Explanation:

A carbohydrate is broken down into smaller sugars, this is an example of what type of energy?

A.chemical
B.mechanical
C.sound
D.nuclear

Answers

The answer is: A
Chemical energy

Which resource is a renewable resource?
A. Coal
B. Gemstones
C. Metal
D. Trees

Answers

the answer is d. tress

Answer:

d. trees

Explanation:

cuz i took the quiz on edge

The cardiovascular system includes all of the following EXCEPT?
A.
Veins
B.
Arteries
C.
Capillaries
D.
Neurons

Answers

Answer:

D

Explanation:

The cardiovascular system does not include Neurons (D). The cardiovascular system is also known as the circulatory system..i think :/

Hope this helps, if it doesn't please let me know :)

Answer:

D, Neurons

Explanation:

cardiovascluar sysetm does not include neurons as neurons are molecules.

Why is the nitrogen cycle important for the survival of organisms in an ecosystem? A. The nitrogen cycle recycles nitrogen through an ecosystem, making it available to all organisms. B. The nitrogen cycle keeps organisms from consuming nitrogen in their ecosystem. C. The nitrogen cycle allows all organisms in an ecosystem to consume nitrogen instead of consuming each other. D. The nitrogen cycle stores nitrogen in safe places, keeping it from entering an ecosystem.

Answers

Answer: A.) The nitrogen cycle recycles nitrogen through an ecosystem, making it available to all organisms.

Explanation: Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use.

true or false aerobic cellular respiration produces more atp then anaerobic cellular respiration

Answers

Answer:

true

Explanation:

Where is DNA located in your body?

Answers

Answer:

DNA is in the nucleus of nearly every cell in your body.

Explanation:

DNA is housed in the nucleus because it is the genetic material and needs to be protected.

Answer:

The DNA is located in the nucleus.

Explanation:

Humans and animals are EUKARYOTES which means we have a nucleus, where the DNA is stored. PROKARYOTES do not have a nucleus to the DNA is stored in the cytoplasm.

~Anna

The high temperature on Friday was 8 degrees above zero. The low temperature was 3 degrees below zero. Which expression gives the average of the low and high temperatures?

a
Left-bracket negative 3 + (negative 8) right-bracket divided by (2) Right-bracket

b
(negative 3 + 8) divided by 2

c
(negative 3 + 8) divided by (negative 2)

d
Negative (3 + 8) divided by 2

Answers

Answer:

B

Explanation:

The negative goes by the 3 because it is 3 degrees below zero. To find averages, you add the numbers and divide by how many numbers there are. in this case, it would be (-3+8)/2

Matter at rest will:
A. gain Mass
B. Stay at rest
C. Move on its own
D. Gain kinetic energy​

Answers

Answer:

D. Gain kinetic energy

HELPPPPPPP!!!!!!

An interglacial is a period of time that occurs between Ice Ages. During previous interglacials, the CO2 levels in the atmosphere were about 300 parts per million (ppm). In 2013, they were approximately 420 ppm. Rounding to the nearest percent, what is the percent increase in CO2 between these two time periods?

Answers

Answer:

40% increase

Explanation:

Percentage Increase Formula:

Percentage Increase=[(Final Value−Starting Value)/|Starting Value|] ×100%

To Calculate Percentage Increase:

   1) Subtract final value (later value) minus starting value (initial value)

  2) Divide that amount by the absolute value of the starting value (initial value)

  3) Multiply by 100 to get percent increase

Keep in mind: If the percentage is negative, it means there was a decrease and not an increase.

So for your problem,

[(420-300)/300]*100% = 40% increase

which of the four DNA strands match the strand in the diagram by base pairing ?

Answers

Answer: I believe the answer you're looking for is Adenine goes with Thymine and Cystosine goes with Guanine.

Hope this helps!!

The four DNA strands that match the strand in the diagram by base pairing is GGTGACT. The correct option is A.

What is base pairing?

A base pair, which consists of two nucleobases joined by hydrogen bonds, is the basic building block of double-stranded nucleic acids.

They contribute to the folded shape of both DNA and RNA and serve as the building blocks of the DNA double helix.

base pair of DNA. The nitrogen-containing bases adenine (A), thymine (T), and cytosine (C), as well as guanine (G), couple together under normal conditions.

The structure of DNA is created by the binding of these base pairs.

In the given sequence, CCACTGA the base pairing can be done as GGTGACT.

Thus, the correct option is A.

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Your question seems incomplete, the missing image is:

What do you think the word biodiversity means? Why is biodiversity important for the stability of ecosystems?

Answers

Biodiversity is the variety and variability of life on Earth. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. Such as A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.

Answer:

Biodiversity refers to the variety of species in an ecosystem. Generally, ecosystems with high biodiversity are more likely to survive environmental changes. Therefore, biodiversity is important to ecosystem stability.

If you drive at 100 m/s for 36,000 s how far will you go ?

Answers

Answer:

Distance = 3,600,000 m

Explanation:

Distance = Speed × Time

Distance = 100 × 36,000

Distance = 3,600,000 m

what connects the pharynx and the trachea

Answers

Answer:

Larynx.

Explanation:

The larynx is the organ that connects the lower part of the pharynx with the trachea.

Larynx.
The larynx is the organ that connects the lower part of the pharynx with the trachea.

5 PLZ HELP 12points+
Select the correct answer.
If the population of rabbits in this ecosystem decreased dramatically because of certain environmental changes, which organisms’ food supply would decrease?

A.
owl and snake
B.
jackal and wildcat
C.
green plant and mouse
D.
goat and wildcat

Answers

Answer: B, the jackal and wildcat

Provide a summary of biologist Stephen Stearns’ findings in how Natural Selection may be working today in humans.

Answers

Answer:

Stephen Stearns states that natural selection doesn't mean the survival of the fittest organisms, but rather this mechanism is illustrated by the selective reproduction of the fittest. Natural selection can be classified into distinct types, including directional, disruptive and stabilizing selection, which are in turn based on sexual selection. These types of selection are driven by different outcomes that have different dynamics.

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