Answer:
I believe it's D
Explanation:
A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other piece has a mass of 25 g.
What is the density of the larger piece?
Answer: The two pieces have the same density of 3g/mL.
Explanation: the density won't change based on the size or amount of the substance. the density is pre-set (for every X there is y weight, this is always constant).
A flame is the result of a chemical reaction that releases energy. Do you think a similar kind of chemical reaction is happening in our bodies to provide us with energy from food to do things?
Answer:
Chemical reactions that take place inside living things are called biochemical reactions. Explanation:The sum of all the biochemical reactions in an organism is referred to as metabolism. Metabolism includes both exothermic (heat-releasing) chemical reactions and endothermic (heat-absorbing) chemical reactions.
ONLY answer if you know 100% its correct. this means if your not sure, don't answer.
Answer:
C IS THE CORRECT ANS BECAUSE GEO THERMAL ENERGY IS PRODUCED FORM CORE OF THE EARTH
WHICH IS VERYY HOT...
Answer:
the answer is c
Explanation:
The earth's internal heat
5 stars?
Help asap! if u answer correct Ill give brainliest!!
Answer:
I believe it means The universe will exploder or The universe is expanding
Explanation:
fill in the blanks: label the different parts of the rock cycle where igneous, sedimentary, and metamorphic rock are formed.
Answer:
☞rock cycle
=> The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions.
=> There are three main kinds of rocks: igneous rock, metamorphic rock, and sedimentary rock. ... It can erode into sediment or melt into magma. It is formed under extreme pressure and temperature deep inside mountain chains.
Explanation:
the arrows in the diagram below show the circulation of air on a sunny day. based on this diagram, what type of local wind would occur?
A. a sea breeze because of the warm air from the land rises and the cool air from the water comes in.
B. a sea breeze because of the warm air from the water rises and cool air from the land comes in.
C. a land breeze because the warm air from the water rises and the cool air from the land comes in.
D. a land breeze because the warm air from the land rises and the cool air from the water comes in.
Answer:
A
Explanation:
Sea breeze because the warm land air rises and the cool sea air come in
The graph shows the consumption of gasoline and diesel fuels by vehicles in the United States for a period of 40 years.
What consequence would likely result from the data trend presented in the graph?
A. It would lead to an increase in deforestation.
B. It would lead to an increase of global temperatures.
C. It would lead to a decrease in oil pollution of a nearby marine environment.
D. It would lead to a decrease in contamination of groundwater resources.
Answer:
B. It would lead to an increase of global temperatures.
Explanation:
Gas burns when it is hot. Therefore the more gas that our cars consume, the hotter the air will be when the car releases those gas vapors. Causing the air to become hotter.
Hope this helped <3 :) brainliest?
should people use crispr to change human traits
Answer:
What do YOU think?
Explanation:
This question is asking for an opinion. The word should is included.
Which is not a scientific theory?
a.
Energy in a system can neither be created nor destroyed.
b.
Characteristics of organisms or populations change over time from generation to generation.
c.
Earth’s outer layer is divided into plates that move around.
d.
Light has both a particle nature and a wave nature.
Answer:
I think C
Explanation:
C is the best answer. According to me, It is not a scientific theory. Hopes this helped.
You have a substance with a length of 2 cm, width of 3 cm, and a height of 4 cm. Its density is known to be .5 g/cm3. What is the mass of the sample you have?
Explanation:
They are related by the the density triangle.
Explanation:
They are related by the the density triangle.
mcdn1.teacherspayteachers.com
d =
m
V
m = d×V
V =
m
d
DENSITY
Density is defined as mass per unit volume.
d =
m
V
Example:
A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?
Step 1: Calculate the volume
V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³
Step 2: Calculate the density
d =
m
V
=
433
g
200
c
m
³
= 2.16 g/cm³
MASS
d =
m
V
We can rearrange this to get the expression for the mass.
m = d×V
Example:
If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?
m = d×V = 500 mL ×
1.11
g
1
m
L
= 555 g
VOLUME
d =
m
V
We can rearrange this to get the expression for the volume.
V =
m
d
Example:
What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.
Step 1: Convert kilograms to grams.
14.83 kg ×
1000
g
1
k
g
= 14 830 g
Step 2: Calculate the volume.
V =
m
d
= 14 830 g ×
1
c
m
³
19.32
g
= 767.6 cm³
HELP! only answer if you know 100% its correct
Answer:
C. Crude oil is found below natural gas reservoirs.
Explanation:
:)
Answer:
Crude oil is found below natural gas
Explanation:
help me plssssssssssssssss
Identify which of the following best explains the transformation process in photosynthesis.
In photosynthesis, the transformation process is in which the light energy is converted into chemical energy. Therefore, option (D) is correct.
What is Photosynthesis?Photosynthesis can be defined as a process by which phototrophs transform sunlight into chemical energy. This chemical energy can be stored in the form of sugars such as glucose, which are formed from water and CO₂ gas.
In the Photosynthesis process, the components are carbon dioxide and water which yield products oxygen gas, and glucose. Therefore, the photosynthesis reaction is generally said to be an endothermic reaction because the energy is provided in the form of sunlight.
[tex]6CO_2 +6H_2O\longrightarrow C_6H_{12}O_6 +6O_2[/tex]
Each chloroplast in green plants contains a green-colored pigment called chlorophyll which is mandatory for this process to occur. Sunlight is absorbed by the chlorophyll of the plants whereas carbon dioxide gas and oxygen gas enter via the tiny pores of the stomata of leaves.
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You will observe the orbits and you have to determine how many planets are in the habitable zone and how many are orbiting successfully. Based on the mass of the star and the placements of the planets, planets may swerve into the star and vanish, collide with each other and vanish, float out of orbit, or all orbit successfully. You will record this information and each planet's orbit in your data table for each trial. If the mass of the sun is 1x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.
If the mass of the sun is 2x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.
If the mass of the sun is 3x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.
Answer:t of orbit, or all orbit successfully. You will record this information and each planet's orbit in your data table for each trial. If the mass of the sun is 1x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.
If the mass of the sun is 2x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.
If the mass of the sun is 3x, planets will fall into the habitable zo
Explanation:
9. If you have a sample of an element with a density of 8 g/mL and a volume of 10 mL and you cut it in half.
What is the density of each half?
What is the volume of each half?
A student has a rectangular block. It is 2 cm wide, 3 cm tall, and 25 cm long. It has a mass of 600 g. First, calculate the volume of the block:
density of the block
Answer
To Be Honest I don't even know myself but can u help me please
Explanation:
Please someone help my on my question
A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other piece has a mass of 25 g.
What is the volume of the smaller one?
Answer:
8.3ml
Explanation:
to get volume u have to divide 25g over the density, i rounded to the nearest tenth, if you don't want to then write out the full number with all the decimals
Weather fronts tend to produce changes in the weather
True
False
Answer:
True
Explanation:
Energy-efficient jobs are growing! One job includes being a conservation scientist, which is part of the STEM job cluster. What is the best definition for a conservation scientist?
A. manage, improve, develop new machines to cook faster and more evenly.
B. develop, document, and research new ways to move people into careers of interest
C. manage improve, and protect natural resources to maximize their use without damaging the environment.
A conservation scientist is one who manage improve, and protect natural resources to maximize their use without damaging the environment. The correct option is C.
What is conservation scientist?A scientist is defined as a person who always studies systematically and uses research and evidence to prepare hypotheses. A conservation scientist is the person who protects, manages and improves the natural resources.
It is the conservation scientist who supervise the forest and give instructions to the workers and technicians who do the labour work for maintaining the forest. They also analyze the data on forest and soil quality and notice any damage to trees caused by fires.
The conservation scientist is also involved in choosing and preparing sites to plant new trees and it is their duty to remove the timber with minimum environmental damage. They also participate in the suppression of the forest fire.
Thus the correct option is C.
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What is the chemical test for water
Copper(II) sulfate in its purest form is white. Because it is devoid of water, it is also known as anhydrous copper(II) sulfate. A sample of copper(II) sulfate becomes blue when water is present.
• Temperature measurements
Temperature testing aids in determining the pace of biochemical reactions in an aquatic environment, as well as whether they can occur at all. If the water temperature is too high, the water's ability to contain oxygen is reduced, and organisms' ability to withstand certain contaminants is reduced.
• Checking the pH level
This instrument determines the acidity of water. The majority of aquatic species can only thrive in a pH range of 6 to 8.
• Test for chloride
Chloride may be found in both fresh and salt water. Mineral dissolution and industrial pollutants, on the other hand, can worsen its levels.
• Testing for salinity
The total amount of non-carbonate salts dissolved in water is calculated. The salinity of your groundwater can tell you how salty your topsoil will become as the water table rises.
• Oxygen Dissolved Test
The amount of oxygen dissolved in water is measured with this device. Aquatic life can't conduct cellular respiration without it, hence it's an important indication of water quality.
• Test for turbidity
Measures the quantity of suspended particle matter in the water, or, to put it another way, how clear the water is. When there is a lot of turbidity in the water, photosynthesis suffers because light can't get through, which raises the water temperature.
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Which fossil fuel does the United States have the most reserves of?
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Two environmental issues of restaurants are the following:
A. Crowding and air quality
B. Crowding and food quality
C. Energy consumption and refrigerants
Answer:
Answer down below
Explanation:
if it has to be 2 of these I think it would be A and B but if it is only one Answer it would be B
Crowding and food quality are two environmental issues of restaurants.
What is the meaning of environmental issues?Environmental issues are defined as harmful effects to Earth and its natural systems due to the actions of humans.
The food supply chain and restaurant customer experience generate a lot of waste – from food waste to plastic waste, and more. Unfortunately, one-third of the world's food gets wasted. This waste alone amounts to 8% of the world's greenhouse gas emissions.
Hence, option B is correct.
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Thermal energy circulates through the atmosphere and oceans by the process of convection. Which source of energy drives convection?
a.
nuclear energy
b.
electromagnetic energy
c.
gravitational potential energy
d.
solar energy
Sam and Shania are doing an experiment with water and salt water.
What type of data might be collected for this experiment?
a.
how much salt is in the water
b.
how quickly the water in each beaker comes to a boil
c.
the temperature of the water
d.
how quickly the water evaporates
Select the Independent, Dependent and Controlled Variables
Answer:
The independent variable is graphed on the x-axis. The dependent variable, which changes in response to the independent variable, is graphed on the y-axis. Controlled variables are usually not graphed because they should not change.
Answer:
The independent variable is graphed on the x-axis. The dependent variable, which changes in response to the independent variable, is graphed on the y-axis. Controlled variables are usually not graphed because they should not change.
Explanation:
Which statement best defines the center of an atom and what it is made of?
The center of an atom is the electron, and it is made up of protons.
The center of an atom is the nucleus, and it is made up of protons and neutrons.
The center of an atom is the proton, and it is made up of electrons and neutrons.
The center of an atom is the nucleus, and it is made up of charges.
what is the name of a mixture that is easily seen and separated???
Answer:
suspension
Explanation:
a mixture in which particles can be seen and easily separated by settling or filtration.
hope this helps
Answer:
Heterogeneous
Explanation:
The difference between Homogeneous and Heterogeneous mixtures are homogeneous are blended evenly and inseparable like soup, while heterogenous are like salads, you can take it apart
You have a substance with a length of 2 cm, width of 3 cm, and a height of 4 cm. Its density is known to be .5 g/cm3. What is the mass of the sample you have?
Answer:
12 grams
Explanation:
D = m/V
0.5g/[tex]cm^3[/tex] = m/(2*3*4)
[tex]\frac{0.5g}{cm^3} = \frac{m}{24cm^3}[/tex]
m = 12g
Write an equation for the reaction that takes place in a luminous flame assuming the laboratory gas is Butane
Answer:
Fire's basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed directly from oxygen to carbon dioxide.
Explanation:
Fire's basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed directly from oxygen to carbon dioxide.
The equation for luminous flame assuming the laboratory gas is butane is fuel + oxygen → [tex]CO_{2} + H_{2}O[/tex].
What is butane?Natural gas, the source of butane, would be a colorless, odorless, but also shapeless gas by nature. This kind of gas is extremely prevalent throughout the world and seems to be comparatively cheap to mine as well as produce.
What is a luminous flame?A burning flame that is clearly seen would be called a luminous flame.
When fuel is reacted with oxygen gas then it will form carbon dioxide and water. It can be written as:
fuel + oxygen → [tex]CO_{2} + H_{2}O[/tex].
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YOur teacher asks you to write a paper tht supports a claim with evidence. In three to five sentences, describe one claim you would make and discuss different forms of evidence you can collect to support your claim. Where would you look for this evidence?
PLEASE HELP
Answer:
People should fund the nations space program. People have a insatiable curiosity about space. "Curiosity inspired Galileo's work." The Space Program has made vital changes in science and technology. "We have GPS devices and "memory foam" and have learned about Earth."
Explanation:
I actually am just learning about this so I took this from an assignment I did in class and at the teachers table. I could give you the passage if you'd like.
Answer fast and correct!
Answer:
A. Provide both heat and power to homes