Answer:
Identify arrows pointing to bonding electrons.
✔ a, b, d
Identify arrows pointing to nonbonding electrons.
✔ c
Identify arrows pointing to structures containing sigma bonds.
✔ a, b, d
Identify arrows pointing to structures containing pi bonds.
✔ a
Explanation:
Answer:
1) option c 2) c 3) option b 4) a
Explanation:
why do pipes split when they freeze
Answer:
Ice expands
Explanation:
when you freeze water, it expands. so when it freezes in a pipe it cant take the pressure
A zebra grazing in the savannah sees a nearby lion charging to attack and eat the zebra Which of the following is the most likely response of the zebra? Ignore the charging lion O Attack the lion O Run away from the lion O Stand tall and intimidate the lion
Answer:
Run away from the lion
Explanation:
A lion is a top predator of the Savannah forest, meaning that it feeds on a wide range of prey. According to this question, a zebra grazing in the savannah sees a nearby lion charging to attack and eat the zebra. The first instinct of the Zebra is to RUN AWAY FROM THE LION.
The zebra runs because it does not want to get eaten by the fierce predator, owing to the fact that it does not have the physical strength to withstand the lion in a physical combat.
In the reaction CaI2 (s) + Cl2 (g) → CaCl2 (s) + I2 (s), what phases are the products in after the reaction? Question 1 options: A) CaI2 is a solid, and CaCl2 is in aqueous solution. B) CaCl2 is a liquid, and I2 is a gas. C) Both products are liquids. D) Both products are solids.
Answer:
D) Both products are solids.
Explanation:
In a chemical reaction such as:
CaI2 (s) + Cl2 (g) → CaCl2 (s) + I2 (s)
You can see the phases of the chemicals involved in the reaction inmediately after the chemical formula. Where (s) means solid, (l) liquid and (g) gas
The CaI₂, CaCl₂ and I₂ are solids and Cl₂ a gas.
That means the products are solids and right solution is:
D) Both products are solids.In what two ways the organisms in the table similar to organisms in the plat kingdom
Answer:
They both are multicellular and Eukaryotes.
I need help plzzz ahahnsnsnsn
Answer:
1=d
2=ricter scale
Explanation:
A student has a sample of aluminum with a mass of 27g and a volume of 10 cm3. What is the density of aluminum?
An isotope has 21 neutrons and a mass number of 40, it has 19 electrons and protons and 21 neutrons. true or false plz explain the answer
Answer:
True
Explanation:
Given parameters:
Number of neutrons = 21
Mass number = 40
Unknown:
Number of electrons = 19
Number of neutrons = 21
Solution:
To find verify whether it is true or false, we must understand the relationship between the given species.
Protons are the positively charged particles
Neutrons do not carry any charge
electrons are the negatively charged particles
Mass number = number of protons + neutrons
Number of protons = 40 - 21 = 19
In an atom, the number of protons and electrons are the same for charge stability.
Number of electrons = 19
please help asap I will give brainiest
Answer:
12 = Lead
13 = red
Explanation:
12:
Given data:
Mass of metal = 143 g
Volume of metal = 12.6 cm³
Identity of metal = ?
Solution:
To check which metal is this we will calculate the density.
Formula:
d = m/v
d = 143 g/ 12.6 cm³
d = 11.3 g/cm³
The metal is lead.
13:
First of all we will calculate the densities of all liquid. The liquid with the highest density will form the bottom layer.
Blue:
d = m/v
d = 12 g/100 mL
d = 0.12 g/mL
Clear:
d = 10 g/ 100 mL
d = 0.1 g/mL
Red:
d = m/v
d = 15 g/100 mL
d = 0.15 g/mL
Yellow:
d = m/v
d = 13 g/ 100 mL
d = 0.13 g/mL
The density of red liquid is highest from all thus it will form bottom layer.
Which trend is represented by the graph to the right?
A Atomic Radius
B Reactivity
Clonization Energy
D Electronegativity
2. Which statement is true about all metals?
A. They have one valence electron.
B. They have freely moving electrons.
C. They have more electrons than protons.
D. They always gain electrons.
Answer:
they have freely moving electrons
Answer:
Explanation:
a) 1/2 true: The Alkali metal group has one valence electron but Earth metals have two valence electrons.
b;) true Metals are good conductors because they have many free electrons.
c:)a negative ion has more electrons than protons
d;) metals lose electrons and non-metals gain electrons. metals transfer electrons to nonmetals.
I think B is your best answer.
Visible light has a higher frequency than?
Answer:
The color purple, or equivalently violet
Explanation the end of the visible electromagnetic spectrum, having the highest frequency of any light wave. The reason we see different colors is because of this difference in frequency, where violet light has higher frequency of light waves than blue light.
This diagram shows one plate sliding beneath another. what landform is most likely to form at this boundary?
A) Rift Valley
B) Volcanic Islands
C) Fault Line
D) Trench
Answer:
D) Trench
Explanation:
At this boundary, the landform that is most likely to form is trench.
A trench is one of the notable subduction features that occurs as a prominent depression on the earth surface where one plate slides under another.
A trench is very deep and also very narrow. It is a highly conspicuous and prominent feature on the ocean floor. At a subduction zone, the denser oceanic plate slides under that lighter continental plate. Some of the deepest part of the earth can be found along deep ocean trenches. An example is the Mariana trench.Which of the following states of matter has a definite shape?
A solids and liquids only
B. liquids and gases only
C.solids only
D. liquids only
Answer:
A. Solids and liquids only
Explanation:
Explain Newton's first law of motion. Write your answer in the essay box below.
Answer:
Gravity
Explanation:
Answer:
that something that’s in rest will stay that way until a force moves it. And that a moving object will keep moving until a force stops it.
Explanation:
What is used to determine the number of each atom in an ionic formula?
Answer:
The Oxidation State of each atom
Explanation:
A chemist is studying a substance and determines that it is a compound. What MUST be true of the substance?
Comparing Protists and Prokaryotes
Which statement correctly compares protists to prokaryotes?
The cells of protists and prokaryotes contain nuclei.
The cells of protists have cell walls, but prokaryotes do not.
Both protists and prokaryotes are multicellular.
Most protists and all prokaryotes are unicellular.
.Answer: Physically, the cell structure of protists and prokaryotes differ. First, the external structures of prokaryotes consist of cell walls made of peptodoglycan. Protists do not have a cell wall, and instead have a semi-permeable plasma membrane in the form of a phospholipid bilayer
Explanation: 1 - Most of the and all Prokaryotes are unicellular organisms. 2- Prokaryotes lack a proper nucleus and other membrane-bounded organelles while have membrane-bounded nuclei and other organelles.
Answer:
its D
Explanation:
I took the assignment on edg
What happen if a force is applied to an object
Answer:
It starts to excelerate with kinetic energy
Explanation:
What is the formula for diphosphorus pentoxide
what is the reason for the trend in the power of the nucleus going across a period?
Answer:
Please Mark as the Brainliest!!!!! PPPPPPPPPLLLLLLLLLSSSSSS
Explanation:
Across a period, effective nuclear charge increases as electron shielding remains constant. This pulls the electron cloud closer to the nucleus, strengthening the nuclear attraction to the outer-most electron, and is more difficult to remove (requires more energy).
Forces and Motion:Question 2
A student pushes a box to slide it across the floor. Which statement best explains why the box begins
to move?
Select one:
0 The weight of the box is less than the force of friction.
O
The weight of the box is greater than the force of friction.
The applied force is greater than the force of friction.
O
The applied force is less than the force of friction
Answer:
the applied force is less than the force of friction.
Explanation:
please help!! im taking the test now
Which lists the elements in order from least conductive to most conductive?
A. nitrogen (N), antimony (Sb), bismuth (Bi)
B. nitrogen (N), bismuth (Bi), antimony (Sb)
C. antimony (Sb), nitrogen (N), bismuth (Bi)
D. bismuth (Bi), antimony (Sb), nitrogen (N)
Answer:
b
Explanation:
Answer: nitrogen (N), antimony (Sb), bismuth (BI)
Explanation:
The elements listed belongs to Group V on the periodic table.
What is the relationship between the volume of water and the dripping time?
A. As time increases, the volume of water increases. B. As time increases, the volume of water remains steady.
C. As volume increases, the dripping time decreases.
D. As volume increases, the dripping time remains steady.
Answer:
A
Explanation:
The more time given for the water to drip, the more droplets fall, which increase the volume of the water
Hope this helps! Good luck :)
WHOEVER HELPS WILL GET BRANLIEST!! ONLY 5 QUESTIONS PLEASE HELP ME!!
1. Which element has 2 electrons in the 4s energy level
2. The ion with a 2- charge in the 3rd energy level
3. This nonmetal is likely to form an ion with a 3- charge that has the highest IN in the group
4. A metalloid in period 4 with 2 electrons in the p sub level
5. The smallest of the -2 ions
Answer:
1. is calcium 2,,,halogens 3 group 16 valence electrons non metal.4 .selenium
Explanation:
5. Palio atomic or monatomic hope tgis helps ig right give braniest
What is the correct electronic configuration for I?
Answer: [Kr] 4d10 5s2 5p5
Explain why understanding the process of combustion requires using an atomic model of mass and not a continuous one.
Answer:
Combustion is a rapid exothermic chemical reaction between oxygen, O₂, and a substance which is known as the fuel that is initiated by an ignition (heat) source to produce carbon dioxide and water vapor other oxides and combustion products
With the continuous model, which is the model seen with the naked eye, that have uniform parts, the combustion of coal that produces no flammable vapors and hence no flame, the combustion of hydrogen gas which is nearly colorless and the combustion of gasoline that produces a bright flame, burns without flame will be taken as different processes
Explanation:
What happens to energy when water changes states of matter from solid to gas?
Answer:
Sublimation is the process from a solid directly into a gas. The particles of a solid absorb enough energy to completely overcome the force of attraction between them. Solid carbon dioxide changes directly to the gaseous state. Therefore the state from soiid and gas can be observed.
Explanation:
Hope this helps! <3
What is the electron configuration for Sulfur?
Answer:
[Ne] 3s² 3p⁴
Electrons per shell: 2,8,6
Atomic number: 16
Symbol: S
If carbon dioxide, methane, and water vapor were not in the atmosphere, then
Answer: they would have to be some where else
Explanation: hope this helps a little
The movement of tectonic plates in two locations is described below:
Location A: Tectonic plates collide and one plate moves over the other while the other plate is pushed deep into the mantle
Location B: Tectonic plates slide past each other
Which statement is most likely correct?
Group of answer choices
Mountains may form in Location B but not in Location A.
There is no chance of earthquakes in the two locations.
Volcanic eruptions may occur in both locations.
Subduction happens in Location A but not in Location B.
Answer:
It is b
Explanation:
Because the mountain comes up not down
