Answers
Answer:
What are we supposed to do
Explanation:
Answer:
Ummm... wdym... comment
↓
Explanation:
Related Questions
Classify the elements as diatomic or monatomic. If necessary, refer to the periodic table to help you identify the diatomic elements.
carbon
helium
hydrogen
iodine
oxygen
sodium
Answers
Answer:
carbon- monatomic
helium- monatomic
hydrogen- diatomic
iodine- diatomic
oxygen- diatomic
sodium- monatomic
Explanation:
the diatomic elements can be remembered with this sentence:
Have No Fear Of Ice Clear Brownies
have- hydrogen
no- nitrogen
fear- fluorine
of- oxygen
ice- iodine
clear- chlorine
brownies- bromine
The diatomic molecules are hydrogen ,iodine ,oxygen while the monoatomic molecules are carbon, helium and sodium.
What are elements?It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
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Describe how this instrument works.
Operation:
Answers
Answer:
It reflects light from one mirror to the second mirror so the second mirror reflects both the light and the image to the users eye.
Explanation:
This help you lol
HEEEEELP!!!!
Why is knowing the concentration of solutions important in the real world? Give an example to help you explain your answer.
Answers
Knowing the concentration of solutions is important in the real world for several reasons. Firstly, concentration provides information about the amount of solute present in a given volume of solvent, which is crucial for various scientific, industrial, and medical applications. Here's an example to illustrate the significance of concentration:
In the field of medicine, determining the concentration of drugs in pharmaceutical solutions is essential for accurate dosing and patient safety. Healthcare professionals need to know the concentration of active ingredients in medications to prescribe the appropriate dosage for patients. For instance, consider a situation where a doctor needs to administer a specific amount of a medication to a patient. Without knowing the concentration of the drug in the solution, it would be challenging to determine the correct volume of the solution needed to deliver the desired dosage. Incorrect concentrations or dosages can lead to ineffective treatment or even harmful side effects for the patient.
Additionally, concentration measurements play a vital role in environmental monitoring and analysis. For example, in water quality assessment, measuring the concentration of pollutants or dissolved substances in bodies of water helps identify potential contamination and evaluate the health of aquatic ecosystems. By monitoring the concentration of contaminants such as heavy metals or nutrients, environmental scientists can determine the impact on aquatic life and implement appropriate measures for pollution control and remediation.
Overall, understanding the concentration of solutions is crucial for a wide range of practical applications, including pharmaceuticals, environmental analysis, chemical manufacturing, food and beverage production, and many others. Accurate concentration measurements enable informed decision-making, quality control, and precise formulation, ensuring the effectiveness and safety of various products and processes in the real world.
Explanation:
the concentration of a solution is the quantity of a solute that is contained in a particular quantity of solvent or solution. Knowing the concentration of solutes is important in controlling the stoichiometry of reactants for solution reactions. Chemists use many different methods to define concentrations, some of which are described in this section.It enables precise control over the amount of solute in a solution, which is essential for maintaining consistency in experiments, manufacturing processes, and other applications. One situation where you might use concentration in everyday life is when preparing a sports drink.
Explain at least one observation you can make about the political borders and the language borders shown on the maps.
Be sure to name the country and describe how its political border is affected by language or a physical feature, such as bodies of water, mountains, or desert.
Use the physical map with the labeled nations to help you identify a nation.
Answers
Answer:
A boundary is a real or imaginary line that separates two things. In geography, boundaries separate different regions of the Earth.The most obvious type of boundary is a physical boundary. A physical boundary is a naturally occurring barrier between two areas. Rivers, mountain ranges, oceans, and deserts can all serve as physical boundaries. Many times, political boundaries between countries or states form along physical boundaries. For example, the boundary between France and Spain follows the peaks of the Pyrenees Mountains, while the Alps separate France from Italy.
The Strait of Gibraltar is the boundary between southwestern Europe and northwestern Africa. This narrow waterway between the Atlantic Ocean and the Mediterranean Sea is an important political, economic, and social boundary between the continents.
Rivers are common boundaries between nations, states, and smaller political units such as counties. The Rio Grande forms a large part of the boundary between Mexico and the United States. The Mississippi Riveris the defining boundary between many of the states it winds through, including Iowa and Illinois, Arkansas and Tennessee, and Louisiana and Mississippi.
What is NOT true about genes and chromosomes?
Genese are located on chromosomes
Chromosomes are in the nucleus
A single chromosome can contain hundreds of genes
All of these are true
Answers
Let us go option by option :
1) Genes are located in chromosomes. TRUE
Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.
2) Chromosomes are the in nucleus.
TRUE
Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.
3) A single Chromosome can contain hundreds of genes.
TRUE
single Chromosome can contain hundreds of tgenes.
4) All of the above
TRUE
As all the statements above are true. The correct option is 4.
Answer:
all of them are true
Explanation:
this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true
no problem
Two cars with identical engines overheated. A mechanic opened the hood of one car and left the hood of the other car closed. This table shows how the temperature of each engine changed over 10 minutes.
Engine Initial temperature (°C) Final temperature (°C)
Engine in the car with the closed hood 105 98
Engine in the car with the open hood 109 95
The next time the mechanic works with an overheated engine, she wants the engine to cool off quickly. What should she do to maximize the rate of thermal energy transfer out of the engine?
Answers:
Leave the hood of the car closed.
Leave the hood of the car open.
Either the rate of thermal energy transfer is the same whether the hood is open or closed.
Answers
Explanation:
Removes excess heat from the engine. Maintains a constant engine temperature. Increases temperature of a cold engine quickly. Warms the passenger compartment.
There is a greater rate of change in temperature in the car with the hood open than with the hood closed
What do the periods in the periodic table tell us?
Answers
Answer:
When you look at the periodic table, each row is called a period (Get it? ... All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons.
Explanation:
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Can Someone please help.
Answers
Answer:
i think D
Explanation:
please mark as brainliest if its right
Help me out? thank you.
Answers
Please help me por favor :'(
Answers
please help bohr diagram practice
Answers
Answer:
nothing is here
Explanation:
If the density of a liquid is 5 g/mL and the mass is 65 g, what would the volume be?
Answers
Answer:
Volume would be 13
Explanation:
Divide the mass by the density
65/5
Answer:
13 mL
Explanation:
Divide mass by density.
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
A basketball is made of matter. fire itself is not matter, however the wood that burns is matter. a basketball is very diffrent from a fire. what are some diffrences that might make a basketball matter but not a fire
Answers
Answer: A basketball is a solid and fire is a gas
Explanation:
To prove that a basketball is a solid you can try to move your hand right through it, you cant so its a solid
To prove fire is a gas you can try to move your hand right through it, you can move your hand right through it so its a liquid or gas in this case it is a gas
What is a disadvantage for organisms that reproduce asexually rather than sexually?
Responses
The offspring receive less genetic material.
The offspring receive less genetic material.
The offspring take more time to grow and develop.
The offspring take more time to grow and develop.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Answers
Answer:
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Explanation:
If there was a disease (as an example) that negatively effected both organisms that reproduce asexually and sexually, the organisms that reproduce asexually would have a disadvantage. Offspring of the organisms that reproduce sexually contain the genetic material of both parents. This would lead to a higher chance of the ability to adapt to any changes, or even a chance of being immune to that disease. However, offspring of the organisms that reproduce asexually are only replicates of the parent. This means that the asexually produced offspring and the parent organism could be harmed more than the sexually produced offspring and parent organism. The organism would have reduced abilities to adapt according to the changes in the enviroment.
The major disadvantage for organisms that reproduce asexually is option 4 that the offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Asexual reproduction is a type of reproduction where only a single parent is involved in creating offspring. The offspring reproduced are genetically identical to the parent. while this form of reproduction has many advantages including rapid and quick reproduction, it posses some major drawbacks as well.
As the genetic diversity is absent in asexual reproduction, adapting and surviving in the dynamic environment is tough for the offspring. Difficulty in catching up with the changing circumstances can sometimes lead to harm to upcoming species.
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Help help help...?
What's one way we can reduce plastic's impact on the environment?
by shredding it into tiny pieces
by recycling it
by burying it
by burning it
Answers
Answer: It could be recycling or burning it. Pretty sure its recycling.
Explanation:
Sorry if this doesn't help.
Which process do plants and animals share in common?
absorption of water
transpiration
photosynthesis
cellular respiration (Right Answer)
You encounter a plant that has green structures on tall brown stalks. Which kind of plant is this, and what are the green structures?
It is a nonvascular plant, and the structures are roots.
It is a nonvascular plant, and the structures are leaves.
It is a vascular plant, and the structures are roots.
It is a vascular plant, and the structures are leaves. (Right Answer)
Some plants have sugar in their roots. How does this adaptation help with survival?
The sugar attracts animals to eat the roots.
The sugar can help the plant survive by storing energy. (Right Answer)
Having the sugar under the ground keeps animals from finding and eating it.
The sugar is used to create new plants.
Which adaptation in a berry plant is for reproduction?
sugar in the berries
chlorophyll in the leaves
thorns on the stem
flowers on the plant (Right Answer?)
Use the scenario to answer the question.
A student is studying the effects of sunlight on tomato plants. She chooses 6 tomato plants, making sure that each of them receives the same amount of water and fertilizer each day. She gives one plant 0 hours of sunlight each day, with the other 5 plants receiving 1, 3, 5, 7, and 9 hours of sunlight. At the end of the experiment, she has people try a tomato from each plant and has them rank the fruits by their sweetness. She also records the total number of leaves produced on each tomato plant.
Which variable was controlled in the experiment?
amount of water (Right Answer)
number of leaves
hours of sunlight
sweetness of fruit
A plant is observed to have deep roots and tendrils that wrap around objects. Which pair of tropisms correctly describe these responses?
hydrotropism and geotropism
phototropism and thigmotropism
hydrotropism and thigmotropism (Right Answer)
geotropism and phototropism
Pole beans need something to grow around and up. Which kind of stimuli can encourage this type of growth?
light
water
touch (Right Answer)
gravity
The part of the plant that makes the food is called...
leaf (Right Answer)
stem
sunlight
photosynthesis
Break down the word "photosynthesis." What does each part of the word mean?
Photo: picture
Photo: light (Right Answer)
Synthesis: make food
Synthesis: putting together (Right Answer)
What is the role of a flower?
Look pretty
Smell good
Make food for the plant
Make seeds (Right Answer)
Answers
Answer:
They would cut down the trees so they could make money off the lumber and they do it for bragging rights.
Answer: They would cut down the trees so they could make money off the lumber and they do it for bragging rights.
Descride Three ways that people can conserve natural resources?
Answers
Answer:
1. Reuse things like cups, towels, cloths, etc.
2. Plant a tree. (Trees and other organic energy sources are traditional sources of renewable energy.)
3. When using natural resources, only use the necessary amount so you're not wasting any.
Hope this helps!!
2. do something for the environment! plant some flowers or pick up trash when you see it.
3.
HELP! only answer if you know 100% its correct
Answers
Answer:
C. Crude oil is found below natural gas reservoirs.
Explanation:
:)
Answer:
Crude oil is found below natural gas
Explanation:
What substances can be released in a volcanic eruption
Answers
A metamorphic rock can also be thought of as a rock that changes. What causes the rock to change?
Answers
Answer:
its ethier b or c
Explanation:
Answer:
I think it is B
Explanation:
What could be the cause for the large temperature difference in Atlanta and St. Louis? A. A cold front moving southeast
B. A warm front moving southeast
C. High pressure in Atlanta
D. Low pressure in Atlanta
Answers
bit.my.HJA/.RJA.com
Which form of heat transfer is letter C in the image below pointing to?
Answers
Answer:
Radiation
Explanation:
Radiation is when heat comes off of the item that is buring.
Imagine that you are a chemist in the early 1900s who works for a lab that synthesizes aspirin from salicylic acid. Write an argument that explains to a reluctant patient the advantages that synthetic medicines may have over natural remedies.
Answers
Answer:
I do experiment with salicylic acid
Explanation:
I I think you have to run and write the equation that you made in salicylic acid because salicylic acid is very harmful to us human have skin that is made up of Cleveland Clinic
Where does most fresh water exist?
Answers
Answer:
aquifers, ice caps, and glaciers I think
(C) aquifers, ice caps and glaciers
What are the steps to evaporate Copper sulfate crystals?
Answers
Answer:
copper sulfate is soluble in water its crystals dissolve in water to form copper sulfate solution. During evaporation, the water evaporates away leaving solid copper sulfate crystals behind. A solution is placed in an evaporating basin and heated with a Bunsen burner
Which of the following problems would be a direct result of humans building along the ocean shore zone?
A. the erosion of the sand and soil from the shoreline
B. sand dunes and vegetation being disturbed
C. the movement of sand from one place to another
D. sand being washed away over long periods
Answers
Answer:
I think it is B.
Explanation:
The erosion of the sand and soil from the shoreline would be a direct result of humans building along the ocean shore zone. When humans build structures along the shoreline. This can lead to increased erosion of the shoreline and loss of the beach.
Building along the ocean shore zone can have several impacts on the natural environment. One of the direct impacts is the erosion of the sand and soil from the shoreline. This occurs because construction can disrupt the natural processes that maintain the beach, such as the movement of sand and the protection provided by vegetation.
For example, building seawalls or other structures can prevent the natural movement of sand and sediment along the beach. This can lead to erosion of the shoreline, as the sand is no longer able to accumulate in areas where it is needed to protect the shoreline. These plants help to hold the sand in place and protect the beach from erosion.
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1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Name and Title:
Include your name, instructor's name, date, and name of lab.
Objectives(s):
In your own words, what is the purpose of this lab?
Hypothesis:
In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.
Data:
Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.
Hydrogen Helium Lithium Sodium Carbon Nitrogen
Moon One
Moon Two
Planet One
Planet Two
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.
Using two to three sentences, summarize what you investigated and observed in this lab.
Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)
We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars?
Why might it be useful to determine the elements that a planet or moon is made up of?