Chemistry Middle School

What two objects transmit light?

Answers

Answer 1

Answer:

Water, and metal.

Explanation:

Answer 2
Air, glass and water are common materials that are very good at transmitting light. They are transparent because light is transmitted with very little absorption. Translucent materials transmit some light but are not completely clear.

Related Questions


What physical property of mercury makes it best suited for use in a thermometer

Answers

Answer:

High coefficient of expansion

Explanation:

It is only mercury that is in liquid form at room temperature. It works on the principle of thermal expansion, it expands when heated and contracts when cooled. The very minute change can be notable by the use of mercury in the thermometer. So this property of the thermometer makes it suitable for measuring temperatures.

High coefficient of expansion

Please help me por favor :'(

Please help me por favor :'(

Answers

More volume, takes longer to heat all the molecules.

Go to this site from the National Oceanic and Atmospheric Administration (NOAA) to analyze global temperature data from 1880 to 2016. The Time Series parameters are already set. Scroll past them to reach the data table.

The data you’ll use is in the first two columns: Year and Anomaly. An anomaly describes a deviation from the standard or long-term average. The anomaly data in the table compares the global land and ocean temperature with the average temperature from 1901 to 2000, which was 13.9°C.

Question 1
Why do you think scientists often find value in looking at and comparing anomalies within data?

NEED HELP ASAP

Answers

Anomalies more accurately describe climate variability over larger areas than absolute temperatures do, and they give a frame of reference that allows more meaningful comparisons between locations and more accurate calculations of temperature trends. Hope this helps with your question . Have a great day and great school year ☺️

Answer:

Anomalies more accurately describe climate variability over larger areas than absolute temperatures do, and they give a frame of reference that allows more meaningful comparisons between locations and more accurate calculations of temperature trends.

Explanation:

What happens when nitrogen fills its valence shell?

A) Three electrons are gained, creating N^+3

B) Three electrons are lost, creating N^+3.

C) Three electrons are gained, creating N^−3.

D) Three electrons are lost, creating N^−3.

Answers

Answer:

i think its d

Explanation:

I think it’s C, Three electrons are gained, creating N^-3

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

HURRY THIS IS AN EMERGENCY.

The greenhouse effect is most similar to which of the following examples?

sunlight passing through a car’s window, with some heat remaining inside, and heating up the interior

rolling down a car window to release the heat from the interior of the car

blowing cold air into a warm jar to lower the temperature inside

turning on the AC in a home to cool down the overall temperature

Answers

Sunlight passing through a cars window with some heat remaining inside and heating up the interior
sunlight passing through a cars window, the greenhouse effect is one in which humidity and heat are concentrated

Using the data on the map, compare the chance of precipitation in Colorado to the
chance of precipitation in New York State. Include both states in your answer and
support your answer with scientific reasoning.

Answers

You didn’t include the data on the map :( post it in the comments please and I’ll help

please help its due soon

please help its due soon

Answers

Answer:136.315

Explanation:Zn are irradiated and the neutron induced reaction 67 Zn (n, p) 67 Cu,

the answer to the problem is 136.315

7: How many times can a volcano erupt?

Answers

Answer:

Some small volcanoes only erupt once in their lives,

while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule

Answer:

small volcano's only 1 time while big volcano's mutiple times

Explanation:

Which of the following is NOT a cost of using fossil fuels?

Which of the following is NOT a cost of using fossil fuels?

Answers

Answer: Burning fossil fuels decreases CO2 in the atmosphere

Explanation: Burning fossil fuel actually increases the amount of CO2 in the atmosphere, it doesn't decrease it.


Hope this helps!

It will be B
Burning fossil fuels decreases co2 in the atmosphere

help pls i will give brainlest

help pls i will give brainlest

Answers

Answer: its 5ft tall and 12 inches

Explanation:

The answer is 5 foot 12 inches

Jane is a graphic designer who is hired by several different companies to create logos and marketing designs. As part of her final project, she makes sure to deliver images in several resolutions. Why is the resolution of an image important? Why would several different versions of the same image be needed? What would happen if a low-resolution image was used on a large poster? Explain your reasoning.

Answers

Answer: Which substances are released during cellular respiration?

Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.

Explanation:

Answer:Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.

What we eat, and how we move our bodies, effects our blood. How does that end up affecting our other organs in the body

Answers

Answer:

The digestive system converts the foods we eat into their simplest forms, like glucose (sugars), amino acids (that make up protein) or fatty acids (that make up fats). The broken-down food is then absorbed into the bloodstream from the small intestine and the nutrients are carried to each cell in the body.

Answer:

The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.

The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine.

Explanation:The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.

The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine.

Elijah's car broke down. It takes 1400 Newtons
of force for the tow
-truck to pull his car. If
Elijah lives 800 meters away, how much work
will it take to tow his car home? If it takes him
40 minutes to get home, what is his average
speed? Force Distance Time Work Average
Speed

Answers

Answer:

2400 newtons.

Explanation:

Im not really sure, I just guessed?

Help pls do the last two all work and last two questions

Help pls do the last two all work and last two questions

Answers

d1 = 15 miles

t1 = 1 hour

d2 = 25 miles

t2 = 2 hours

d = 15 + 25 = 40 miles

t = 1 + 2 = 3 hours

\(avg. \: speed \: = \: \frac{total \: distance}{total \: time} \)

\(avg. \: speed \: = \frac{40}{3} \)

\(avg. \: speed \: = 13.33mi \: hr ^{ - 1} \)

What happens when two areas of air have different pressures?

Answers

It might make a tornado

Take a look at this dandelion. The yellow flower on the right is _______ pollinated and the seeds on the left are transported by ___________. A) wind; water B) insect; wind C) insect; birds D) animals; water

Answers

The answer is A,
The yellow flower on the right is wind pollinated and the seeds on the left are transported by water.

Answer:

Insect and wind are the correct answer

Explanation:

Just took the test on USA Test Prep

Which of the following is true of an atom?
a. The negative electrons are in motion around the positive nucleus to which they are attracted.
b. The positive protons are in motion around the negative neutrons to which they are attracted.
c. The negative neutrons are in motion around the neutral nucleus to which they are attracted.
d. The neutral electrons are in motion around the positive protons to which they are attracted.

Answers

Answer:

il get back to you soon with the answer

Explanation: need to eat lunch

The negative electrons are in motion around the positive nucleus to which they are attracted is true related to atom. Thus option a is correct.

What are atoms?

Atoms are defined as the smallest unit into which matter can be divided without the release of electrically charged particle.

It is also defined as a building block of all the matter, created after big bang theory.

Electrons are defined as a negatively charged subatomic particles that together with protons and neutrons form an atoms nucleus.

Nucleus are defined as the central region of an atom where the majority of masses are concentrated and contains protons and neutrons.

Thus, the  negative electrons are in motion around the positive nucleus to which they are attracted is true related to atom. Thus option a is correct.

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https://brainly.com/question/1566330

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Which best describes a difference between electric current and static electricity? a. Electric current is continuous, and static electricity is not continuous. b. Static electricity is continuous, and electric current is not continuous. c. Electric current involves the movement of electrons, and static electricity involves the movement of protons. d. Static electricity involves the movement of electrons, and electric current involves the movement of protons

Answers

Electric current is continuous, and static electricity is not continuous.

Explain how?

Electric current is defined as rate of flow of charge which is given by

here we know that since this flow of charge is continuous so here electric current is continuous flow of charge.

Now for static electricity is instantaneous discharge of charge particles which are accumulated at a given point.

We can say it a part of a body is charged heavily then this heavy charge will instantaneously discharge to some other body of lower potential when it comes in contact with it.

So it is instantaneous current which flows for some fraction of time.

So the correct answer will be Electric current is continuous, and static electricity is not continuous.

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https://brainly.com/question/2264542

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Answer:

cccccccccccccccccc

Explanation:

Hello, could you help me to answer this question. Thank you very much, it would save me!
Answer the question, "Why is it best to put subscripts next to the symbols in the density and solubility formulas?"

Answers

The number of atoms of each kind is indicated by a subscript following the atom. If there is only one atom, no number is written. If there is more than one atom of a specific kind, the number is written as a subscript following the atom.

Hi so I’m actually stuck on this too:)

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What is the speed of light? If light travels 31% slower in fiber optic line, how fast does light travel through the line?

Answers

It travels about 206.9 kilometers
i think about 206.9 kilometers

What is causing the increasing amount of CO2 in the atmosphere? What could be done about it?

Answers

Pollution and people could choose more green ways to do everyday things
Pollution! If everyone recycles it would make a huge difference.

Describe the difference between the mass and weight of an object.
Describe two ways weight can be altered

please answer both! ty :D

Answers

Answer and explanation:

1. Mass is a measure of how much matter there is in an object, whereas weight is a measure of the size of the pull of gravity on the object.

2. The weight can be altered by either changing the object's mass or moving it to a planet with a different acceleration due to gravity.

Analyze this map and provide 10 specific examples of weather conditions found in
this map. Number your examples from 1-10 and use the textbox. Give detail.

Analyze this map and provide 10 specific examples of weather conditions found inthis map. Number your

Answers

Answer:

May be thay can be tropical in south east and wet in middle, hot in west and cold in north.

Explanation:

(Sunny, windy, cloudy, cold, foggy, rainy, snowy, clear, warm(peace), hot(uncomfortable))

BRAINLY ME PLEASE IF HELPFUL!!!

Which of the following is the term for the heaviness on something's surface that exerts a force over an area
pressure

sediment

deposition

eruption

Answers

Answer:

A

Explanation:

I think it's pressure. Using the process of elimination,  sediment is the matter that's on the bottom of a liquid or solution, deposition is the process of deposing, eruption is the process of erupting, and pressure's formula is force/area, so pressure is the answer.

pressure since it’s meaning is the weight and force being applied onto something.

Help me out, please.

Help me out, please.

Answers

Answer:

I'm going to have to say A

Explanation:

I think it’s A. Jdjdnd

11. Hay is made up of organic compounds. What are the main elements in many organic compounds?

Answers

The three elements that make up over 99 percent of organic molecules are carbon, hydrogen and oxygen. These three combine together to form almost all chemical structures needed for life, including carbohydrates, lipids and proteins.

Answer:

35

Explanation:

Use the picture below to answer the question.
Comparing the two waves, wave B has a...

A) higher frequency.
B) greater amplitude.
C) shorter wavelength.
D) longer wavelength.

Use the picture below to answer the question. Comparing the two waves, wave B has a...A) higher frequency.B)

Answers

Answer: D) longer wavelength.

Explanation:

A) higher frequency and C) a shorter wavelength.

As far as I know, you calculate frequency on a graph using the number of peaks you can see. Since the wavelength is shorter (the distance between two peaks on the wave), the frequency should also be higher as more fit on the graph.

Methane is a gas at room temperature and pressure. Explain why this is the case.

Answers

Answer:

hope it helps ❤

Explanation:

Methane only has london dispersion forces since it is nonpolar. London dispersion force is the weakest intermolecular force, so the forces between its molecules will be weak. This leads to a low boiling point that is lower than room temperature, which makes it a gas at room temperature.

Methane has london dispersion forces since it is nonpolar. London dispersion force is the weakest intermolecular force, so the forces between its molecules will be weak. This leads to a low boiling point that is lower than room temperature, which makes it a gas at room temperature.

How could the Flood have changed landforms?V

Answers

erosion would be one of the effects from floods
Soil and rocks could move with the water, also pressure from water can cause earthquakes
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Which of the following statements is correct regarding measuring GDP? A GDP can be measured either as the total spending on domestically produced goods and services, or the total value added in domestic production, or sum of all incomes received from domestic production B GDP can be measured only as the total spending on domestically produced goods and services C Information about exports but not imports is necessary to calculate GDP D Government production is not included in the GOP E The value added of government production is computed using the price that public goods and services are sold at in the market Heart Label the Pulmonary loop and the Systemic loop ( use arrows) What did the Spanish explorers beg Native Americans to do?Christopher Columbuss What is carboxylic acid? Simple French sentences using que (2) and qui (2) And one sentence in French of a profession youd like to be and why. And one you would not like to be and why Given the following market equations: Supply: Qs = -1+1p Demand: Qd = 70 - 2p Solve for the equilibrium price = $ At one instant an object in free fall is moving upward at 50 meters per second. One second later its speed is about:a. 100 m/sb. 60 m/sc. 55 m/sd. 50 m/se. 40 m/s. Very far from earth (at R=[infinity]), a spacecraft has run out of fuel and its kinetic energy is zero. If only the gravitational force of the earth were to act on it (i.e., neglect the forces from the sun and other solar system objects), the spacecraft would eventually crash into the earth. The mass of the earth is Me and its radius is Re. Neglect air resistance throughout this problem, since the spacecraft is primarily moving through the near vacuum of space.Now find the spacecraft's speed when its distance from the center of the earth is R=Re, where the coefficient 1. Express the speed in terms of se and . Geometry task!!!Please help for all three , a) , b) , and c) Pablo, a resident of New Mexico, while driving through Arizona was struck by an SUV driven by Drew, a resident of California. Drew was speeding when the accident happened and Pablo suffered severe injuries that ruined a potential acting career. Pablo's damages are estimated at $200,000. Select the BEST answer to the following questions: (1) What type of legal claim is Pablo likely to file Write an Expository Essay which investigates anidea, evaluates evidence,expounds on the idea, and sets forth anargument concerning that idea in a clear andconcise manner.The essay must be written A rental car agency charges $12 per day plus 14 cents per mile to rent a certain car. Another agency charges $15per day plus 9 cents per mile to rent the same car. How many miles per day will have to be driven for the cost of acar from the first agency to equal the cost of a car from the second agency? A printing machine can print 335 copies in 5 minutes. At this rate, how many copies can the machine print in an hour? which of the following groups would most likely have agreed with the argument presented in the excerpt? the __________ made it illegal to interfere with anyones right to vote in any election held in this country. What does 'i' change to in stem changing verbs in the present tense? how many asymmetric centers are present in a molecule of 2,4,6-trimethylheptane? a. 0 b. 1 c. 2 d. 3 e. 4 What do you think was meant by Jackson when heaccepted the position as chief Americanprosecutor and wrote, "If we want to shoot Germans as a matter of policy, let it be done as suctbut don't hide the deed behind a court." A researcher is standing in a corner (point c) of a triangler plot. the angle to point a is S76E the angle to point b is N32E The distance between point c and point a is 210 ft and the distance between point c and point b is 150 ft find the distance between point a and point b Prove this equation I'll give brianliest!!