2. Can oxidation occur without reduction? Explain.
Answers
Answer: Nope
Explanation:
Oxidation occurs because an agent that causes the oxidation---the oxidizing agent---must itself get reduced
Related Questions
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.
———————————
(1/12)th Mass of one C12 atom
help me with my science homework
Answers
What is an ellipse please help)
Answers
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
Please help!!! Hydrogen and oxygen undergo a chemical reaction to form water. How much water will be created if hydrogen has a mass of 3.56 g and the oxygen has a mass of 25.32 g?
Actual answers only please :)
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Answer:
22.88g
Explanation Hope this helped <3
I need some help plsssss, no explanation needed and also, I'm being timed! Thanks for your time
Answers
Answer:
potassium, sodium, lithium, magnesium, copper, silver, gold
Explanation:
thanks me later ')
Describe how the Rube Goldberg device design that you created follows the law of conservation of energy. Be sure to include both parts of the law of conservation of energy in your description.
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4. Which of the following is a solution? *
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Answer:
chemistry- A homogeneous mixture
a solution is also something to solve a problem
d
d
f
f
g
hh ⃤
⃤ ⃤ ⃤ ⃤ ⃤
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:
Describe how a pure sample of copper ( II ) nitrate crystals can be prepared using recycled copper wire
Answers
Explanation:
Copper(II) nitrate describes any member of the family of inorganic compounds with the formula Cu(NO3)2(H2O)x. The hydrates are blue solids. Anhydrous copper nitrate forms blue-green crystals and sublimes in a vacuum at 150-200 °C.[5] Common hydrates are the hemipentahydrate and trihydrate.
Copper ( II ) nitrate crystals can be prepared by reacting recycled copper wire with nitric acid so that chemical change takes place.The reaction is Cu + HNO₃\(\rightarrow\)Cu(NO₃)₂ +H₂O.
What is a chemical change?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
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PLEASE HELP ME Research ten stars from the list below and create a completed chart like the example provided.
Write a conclusion based on the data you collected.
Assignment Directions
Choose ten stars from the list to research and classify using apparent magnitude, size (compared to our sun), distance from the Earth, star location (constellation), and color.
Sirius
Canopus
Vega
Alpha Centauri
Procyon
Beta Centauri
Achernar
Alpha Crucis
Capella
Altair.
Create a chart like the example below for the stars you chose. The star example will help you to better understand how to fill in the information.
To help you analyze your data and write a conclusion, answer the following questions in paragraph form.
Which of the 10 stars that you chose was the largest?
Which of the 10 stars that you chose was the brightest?
Which star(s) would you be able to see without the aid of a telescope? Give a reason for this.
Was there a connection between the size of a star and a star's magnitude? Give an example from your data to support your answer.
Name a different property other than the ones in the chart that can also be used to classify stars.
Submission Requirements
Upload the completed chart.
Write a conclusion paragraph based on the five questions.
Answers
Answer:
A glance at the night sky above Earth shows that some stars are much brighter than others. However, the brightness of a star depends on its composition and how far it is from the planet.
Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. (A light-year is the distance light travels in one year — about 6 trillion miles, or 10 trillion kilometers.) Astronomers also measure luminosity — the amount of energy (light) that a star emits from its surface.
Measuring star brightness is an ancient idea, but today astronomers use more precise tools to obtain the calculation. Specifically, they use the electromagnetic spectrum, focusing on the wavelengths visible to the human eyes. Every star has a distinctive spectrum of light, which to our eyes is rendered as a color.
Explanation:
Sustainability means that the needs of which two populations will be met.
Present and future humans
Past and future humans
Americans and non-Americans
Polar Bears and Rainforest animals
Answers
Answer:
Present and future
Explanation:
I did the test. It's the MOD 2: Human Impact Quiz, right? I have Mrs. Wurzenberger from Elevation ;P
The image shows the gravitational effects of the moon (not shown) on the Earth (depicted here) and the resulting tides that form. Which statements are true about the gravitational force between the Earth and the moon? Select ALL that apply.
Responses
A The moon exerts equal gravitational force on all locations of the Earth
B The moon exerts a smaller gravitational force on Earth locations that are farther away
C The moon must be to the right of the Earth because gravity is an attractive force.
D The moon must be to the left of the Earth because gravity is a repulsive force.
E The moon exerts a greater gravitational force on the Earth than the sun does.
Answers
Answer: B
Explanation:
Brainliest please! (if im right)
What is this because this is some stuff I don't know and supposedly they say its 7th grade stuff
Answers
Answer:
Radiation
Explanation:
The transfer of heat energy to hot body to cold body is called radiation
The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks and ears of corn. The techniques used by two farmers to protect the corn crop are described below.
Technique A: Sprayed his corn crop with an insecticide. The insecticide is known to kill all honeybee, butterfly, and moth larvae.
Technique B: Used a genetically modified variety of corn. The plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn.
Which technique is likely to have less of an impact on the environment?
Technique B because it may help humans who consume corn to fight bacteria
Technique A because it kills a broader variety of insects to protect the corn
Technique B because it preserves the harmless insects and targets only the moth larvae
Technique A because insecticide use is better for preserving the environment.
Answers
Answer:
Its C
Explanation:
Method A puts a type of spray that kills bees plus butterfly's which would make their population decrease. Which isnt helpful and harms the enviroment a lot. Answer A dosent make sense it may be harmful
Answer: c
Explanation:
I took the quiz
Help me ONLY ANSWER IF U KNOW
P.S I WILL MAKE BRAIN CROWN AND GIVE POINTS
Answers
Answer:
Trey searching it up on socratic i recoment it its a mth app better than this
Explanation:
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.
Sketch a simple model that shows why the constellations change over the course of a year.
Answers
Answer:
for only five points we will not make sketch n
In humans, these organs are part of a larger system, the ________ system.
A.) Circulatory
B.) Reproductive
C.) Digestive
D.) Nervous
Answers
c) Digestive.
The stomach, pancreas, gall bladder are all present in the digestive system.
If you have questions ask anytime ;)
Find the volume of the rock in the images by the amount of water that it displaces
Answers
What characteristic of an element determines how its atoms can bond with other atoms?
A. its total number of electrons
B. its number of valence electrons
C. how many low-energy-level electrons it has
D. how many protons and neutrons it has
50 brainly points!
Answers
Answer:
The answer is A
Explanation:
its total number of electrons
Choose all the answers that apply.
Extinction can be caused by _____.
habitat destruction
natural disasters
disease
invasive species
The answer is all of the above
Answers
Answer:
All of above
Explanation:
There are still more like global warming, population over growth, and even overconsumption. But mainly habitat destruction, natural disasters, disease, and invasive species. Just remember that this are all naturally occurring ways of extinction.
Which is not needed for a hurricane to form?
Answers
Answer:
strong cold front
Explanation:
Please draw a diagram of how a magnetic field works around a magnet. Please label.
Answers
Mark me Brainly
⚠️ILL MARK BRAINLIEST!⚠️
What is the speed of light? If light travels 31% slower in fiber optic line, how fast does light travel through the line?
Answers
Which statement is a hypothesis?
A. If an earthworm is given a choice, it will move toward darkness rather than light.
B. Most of the earthworms moved to the shaded area during the experiment.
C. The earthworms must all be the same species.
D. Do earthworms prefer bright light or darkness?
Answers
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
Your dad is working on creating a brick border for the lake in your backyard each brick has a mass of 100 g and a volume of 20 cm3. what is the density of the brick? explain the steps you took the solve this problem showing your work then explain of the brick will float or not if it falls in the lake. why or why not (50 POINTS)
Answers
Answer:
5000kg/m³
Explanation:
density=mass/volume
d=m/v
d=100/20
=5g/cm³
g/cm³*1000=kg/m³
5g/m³*1000=5000kg/m³
Answer:5000kg/m³
Explanation:
Select the correct answer from each drop-down menu.
Flow chart, The Rock Cycle. Top, rectangular block Igneous points to blocks A (left), B (right). Block B points to middle block Magma to Igneous block. Words read, increasing pressure and temperature, weathering, deposition, lithification.
In this model of the rock cycle, A represents
rock and arrow B represents the process of
Answers
Answer: A
Explanation:
The spot labelled as'A' in the image will turn into extrusive igneous rocks.
What are igneous rocks?
Igneous rocks are one of the three main rock types the other two including sedimentary and metamorphic rocks.These rocks are formed by cooling and solidification of lava or magma.
The magma is derived from partial melts in the planet's mantle or crust.Melting is caused by increase in temperature or decrease in pressure or even change in composition.Solidification occurs either below surface which is called as intrusive rocks or on the surface as extrusive rocks.
They are classified according to their texture,mode of occurrence,chemical composition,geometry and mineralogy of rock.The two important variables for classification are mineral composition and cooling history.
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Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
Answers
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
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Please help me por favor :'(
