Answers
Magnesium: two valence electrons, 2 dots, 2 oxidation #
Sodium: one valence electron, one dot, +1 oxidation
Arsenic: five valence electrons, 5 dots, either -3,+3, or +5
Bromine: 7 valence electrons, 7 dots, either 1-,1*,5+
I hope this helps
Related Questions
science, who ever gets this will get a brainlest.
answers
Metamorphic
Volcanic
Igneous
Sedimentary
Answers
Answer:
sedimentary i think
Explanation:
Answer:
Rock A sedimentary
Rock B Metamorphic
Explanation:
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place.
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
¨selective breeding should be more tightly restricted¨- do you agree or disagree with this statement and whyyyyyyyyyyyyy¨
Answers
Answer:
disa gree animals should be aloud to mate with another animal of the same breed freely
Explanation:
I will give anyone who answers this fast and correctly a brainliest on this and go to your account and give 5 stars/thanks on all of your answers .
To investigate absorption, Hector cuts two rectangles from five different-colored sheets of construction paper. He then staples three sides of each pair of rectangles to make a pocket and inserts a thermometer into each.
He takes the thermometers in the construction paper pockets outside, where it is clear and sunny. The initial temperature of each thermometer is 22°C. The image shows the thermometers after being outside for 15 minutes.
A thermometer in black paper reads 38 degrees Celsius, a thermometer in white paper reads 24 degrees Celsius, a thermometer in green paper reads 29 degrees Celsius, a thermometer in red paper reads 31 degrees Celsius, and a thermometer in blue paper reads 33 degrees Celsius.
Complete Hector's table by recording the final temperature and calculating the temperature change for each thermometer.
Answers
Answer:I will give it to another person
Explanation:because they are good to me
explain what happens with the light when you see black and white opaque objects
Answers
science, who ever gets this will get a brainlest
Answers
I'LL MARK BRAINLIEST PLZ HELP MEH I NEED IT RN I'LL BE YOUR FRIEND TOO *sniff*
what is a fossil fern providing evidence the continents once were joined (science)
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Lets say a plant native to greenland is in canada (fossilized against canada's shore line) it's proof that at one moment they where actually connecting. <3
Animal remains (of one animal) found on two different continents.
Students are planning an investigation into the distribution of charges in insulators and conductors. They know that charges can be transferred by conduction, induction, and friction. What materials and tests would they need to choose in order to identify conductors and insulators using conduction, induction, and friction?
A. Students need to choose metals and nonmetals. They would need to perform tests where materials are only touching non-charged objects, but not coming into the electric field of charged objects.
B. Students need to choose only metals. They would need to perform tests that include the touching of materials to charged objects, materials within the electric field range of
charged objects, and use some sort of force to cause friction to occur with materials.
C. Students need to choose metals and nonmetals. They would need to perform tests that include touching of materials to charged objects, materials within the electric field range of charged objects, and use some sort of force to cause friction to occur with materials.
D. Students need to choose only nonmetals. They would need to perform tests that include the touching of materials to charged objects, materials within the electric field range of charged objects, and use some sort of force to cause friction to occur on materials.
Answers
science, who ever answers this will get a brainlest
Answers
answer:
a.fossils of the same plants and animals are found on widely spread continents
explanation:
four fossil examples include; the mesosaurus, cynognathus, lystrosaurus, and glossopteris.
good luck :)
i hope this helps
have a nice day !!
please in the name of god help me guys.
Answers
1. D: the ability to cause a change or do work
The others dont make sense for energy.
2. C: Lamp
A lamp uses the electric current to light up a room, or area.
3. B: foil will bend away
The same charges repel each other that is why a magnet is repelled by the same pole of another magnet.
4. A: Sound
You can’t hear light or any of the other options.
5. A: gravity
Gravity is a force of nature that pulls on everything.
6. C: static electricity
The opposite charges stick to each other, a battery again is an example of this.
7. B: a copper nail
Metal is one of the best electric conductors.
8. C: closed circuit
This is because if a circuit is closed the electricity flows through perfectly but for example an open one would not work or it would leak energy.
Hope this helps
Reread the different bottle properties found underlined at the top of the first page. Which of the two properties tested is more important in making a good insulated bottle, silvered or evacuated and why?
Properties: Each bottle was designed with different properties:
Bottle A: Silvered, evacuated
Bottle B: Silvered, not evacuated
Bottle C: Not silvered, evacuated
Bottle D: Not silvered, not evacuated
Answers
Answer:
Bottle B
Explanation:
Playing soccer on a beach will require more effort because the sand causes a great deal of _______ to the ball.
Group of answer choices
A. inertia
B. friction
C. gravity
D. acceleration
Answers
An object with little mass won't require a lot of force to move.
Group of answer choices
A. False
B. True
C. Only sometimes
Answers
Answer:
True
Explanation:
Heavier objects (objects with more mass) are more difficult to move and stop. Heavier objects (greater mass) resist change more than lighter objects. Example: Pushing a bicycle or a Cadillac, or stopping them once moving. The more massive the object (more inertia) the harder it is to start or stop.
Michael is looking for examples of energy at the park. He notices a mother pushing her child on a swing. He graphs the number of back-and-forth swings that the child completes each minute. Which of these describes the pattern in the graph?
A.The mother decreased the force of her push on the swing.
B.The potential energy and speed of the swing decreased over time.
C.The energy of the child on the swing changed from kinetic to potential.
D.The kinetic energy of the child on the swing increased over time
Answers
Answer:
D.
Explanation:
As you see, the graph INCREASES, which means it goes up. It is not going down, only rising.
If I'm wrong forgive me ;-;
The table below shows 4 examples of pairs of objects, their masses, and the distance between them. In which example is the gravitational force of attraction between the two objects the greatest.
Answers
Answer:2 là lớn nhất
Explanation: F= Gx(m1xm2)/r^2
F: là lực hút
G: là hằng số (6.67x10^-11)
m1: là khối lượng của vật 1
m2: là khối lượng của vật 2
Calculate the mechanical energy of an object that has a potential energy of 5 joules and a kinetic energy of 3 joules
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Write a scientific explanation that explains the most likely reason why Mercury and Venus do not have moons. CER.
Due in 1 hour pls helppppp
Answers
Answer:
Mercury and Venus do not have moons. This is because any moon orbiting around them would be in an unstable orbit and would most likely be swallowed by the mammoth gravitational pull of our solar system’s mighty Sun. Whenever we look up at the night sky, we see a greyish-white object hung brightly among thousands of other visible stars.
Answer:
Most likely because they are too close to the Sun. Any moon with too great a distance from these planets would be in an unstable orbit and be captured by the Sun. If they were too close to these planets they would be destroyed by tidal gravitational forces.
what characteristic of a wave is related to the intensity of loudness of a sound?
1. Amplitude
2. Frequency
3. Wavelength
Answers
Th characteristic of a wave related to the intensity of loudness of a sound is amplitude. Amplitude is a measure of the intensity of waves.
What is amplitude of a wave ?Amplitude of a transverse wave is the height to the crest or trough from the base line. Amplitude of a wave is directly proportional to its frequency. Amplitude is measure of intensity of the wave.
Sound waves are longitudinal waves. Longitudinal waves are composed of compressions and rarefactions. The amplitude of a sound wave is the distance between the particles in compressions.
Amplitude is a frequency depended factor. As the frequency increases, amplitude of the wave also increases, making the wave energetic and sound louder. Hence, option 1 is correct.
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