How many bonds does silicon tetrachloride, SiCl4 have?
aluminum hydroxide + sodium nitrate reaction type
Answer:
.
Explanation:
GIVING BRAINIEST FIVE STARS AND HEART!
Please define the following term in your own words!
law of conservation of matter
Answer:
Matter cannot be created destroyed
Explanation
Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.
What causes an earthquake to happen?
A. O Rocks deform slowly as a result of physical stress.
B. O Rocks along a fault move suddenly and release energy.
C. Large amounts of rock suddenly shift downward when large holes form
underground
D. O Energy is transferred to rock layers from convection currents in the oceans
and the atmosphere.
In what way does the shape of a molecule affect how the molecule is
involved with living systems?
OA. It determines the weight of the molecule.
OB. It determines how the molecule functions.
O C. It determines oxidation states present in the molecule.
OD. It determines what elements are in the molecule.
Answer:
B
Explanation:
I'm not 100% sure, but B seems like the most likely answer because the shape of a molecule usually is a major factor in how molecules interact with each other.
I hope that helps.
7.62 x 10^23 molecules of CO2 are contained in a tire. How large is the tire (in liters)?
Answer: 7.62e+23
Explanation:
Where is nature can you find isomers?
11 points!!!
Answer:
Isomers are defined as the molecules or polyatomic ions which have similar molecular formula but different in arrangements of atoms.
Isomers can be found in food items carrying glucose (C6H12O6), galactose or fructose, they all have the same chemical formula but differ structurally and chemically.
Glucose is found in vegetables and milk, galactose found in dairy products, and Fructose is found in fruit juices.
In the Periodic Table, the vertical columns that extend down the Periodic Table are called
A. periods.
B. Groups.
C: Classes
D: Rows
Answer:
b
Explanation:
Can someone answer this pleasee it’s free 15 points
I don’t know
but thank u for the points
I need points hehe
Did you know?
Hawaii is the Widest State in America!!!!!!!
A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike and the rider is 85 kg. Find the kinetic energy of the bike and the rider. If the rider coasts up the hill calculate the height at which the bike will come to a stop. (h=PE/mgh)
Please help me!! this is due in like 20 minutes!!
KE=3070.625 J
Height = 3.686 m
Further explanationmass of bike+rider=85 kg
velocity = 8.5 m/s
[tex]\tt KE=\dfrac{1}{2}mv^2\\\\KE=\dfrac{1}{2}\times 85\times 8.5^2\\\\KE=3070.625~J[/tex]
Conservation of energy :
(KE+PE)₁ (downhill) = (KE+PE)₂ (up the hill)
PE₁=0⇒h=0
KE₂=0⇒v=0(stop), so equation becomes :
KE₁=PE₂
[tex]\tt KE_1=3070.625\\\\KE_1=mgh_2\\\\3070.625=85\times 9.8\times h\Rightarrow h=3.686~m[/tex]
?
How many protons, neutrons, and electrons does the following isotope have:
10 protons, 2 neutrons, 4 electrons
4 protons, 6 neutrons, 10 electrons
O
6
protons, 4 neutrons, 0 electrons
4 protons, 2 neutrons, 4 electrons
Answer:
D. 4 protons 2 neutrons and 4 electrons
Which of the following is a balanced chemical equation?
Answer:
equation number 3 is balanced.
hope it helps ☺️!
Pls help me ASAP thank you!!
What is the first stroke of a 4 stroke cycle?
A. intake
B. exhaust
C. compression
D. power
Answer:
Intake
Explanation:
It is the very first thing you do.
Figure 4: Four-Stroke Cycle In the first stroke, also known as the Intake Stroke or Induction, the piston travels from the top dead centre (TDC) to the bottom dead centre (BDC) with the intake valve open and exhaust valve closed. This creates a vacuum due to the increase in volume in the combustion chamber.
The stroke cycle is used in the operating cycle of gasoline or petroleum engines. The first stroke in the 4 stroke cycle is intake. Hence, option A is correct.
What is stroke cycle ?An internal combustion (IC) engine is referred to as having four strokes when the piston is rotating the crankshaft. A stroke refers to the whole journey of the piston along the cylinder, in either direction.
In gasoline/petrol engines, a four-stroke cycle is used. The four strokes are intake (1), compression (2), power (3), and exhaust (4). The intake port is on the right's blue side, and the exhaust port is on the left's brown side.
The piston head is surrounded by a thin sleeve called the cylinder wall, which provides a space for the combustion of fuel and the production of mechanical energy. Therefore, the first stroke of a 4 stroke cycle is intake.
Find more on stroke cycle:
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can someone help with with some answers?! :-) please! i need this done in a hour :-( help!!
What is the process called when a solid becomes a liquid?
melting
freezing
condensing
boiling
the answer is melting
Answer: melting :)
Explanation:
Where is the Oort cloud located?
in the innermost region of the solar system, closest to the Sun
in the outermost region of the solar system, beyond Neptune
in the region between the Kuiper belt and the scattered disk
in the region beyond Neptune, but closer to the Sun than the Kuiper belt
Answer:
Option B - in the outermost region of the solar system, beyond Neptune.
Explanation:
The Oort Cloud is an extended shell of icy objects that exist in the outermost reaches of the solar system.
Answer:
b
Explanation:
i took the test
Combine the following ions to create neutral compounds Y3+ and OH-
Answer:
Y(OH)₃
Explanation:
Given ions:
Y³⁺ OH⁻
To find a neutral compound that conforms with the formation of the given ions;
We us the exchange of valency approach to solve this problem. The valency will form the combining power of the ions for the combination.
Y³⁺ OH⁻
Combining power 3 1
Exchange of valency 1 3
Now the compound is Y(OH)₃
The pictures above show a gerbera daisy that has experienced a change called wilting. Which of the statements below best describes what has happened from Picture A to Picture B?
Answer:
a
i just had this
Answer:
A. water entering the plant. thats the one
Explanation:
Please help! Its for chem
Answer:
can you give me more info
Explanation:
i think it d or c
i got charts to help
Which of these statements accurately describes monomers?
Monomers are macromolecules.
Monomers contain double bonds.
Monomers are made of repeating units.
Monomers contain bonds between metals.
Answer:
Monomers contain bonds between metals
Answer:
B: Monomers contain double bonds
Explanation:
I got it right on Edge
What do you think causes a lunar eclipse? (Use your knowledge of solar eclipses and feel free to run the Gizmo to help you.)
Moon reflects the light frim the sun, thats why we are able to see it and it shines in the night. But, we know that Earth revolves around Sun and Moon revolves around Earth. During this revolution, Earth and Moon comes in a position when Earth is in the middle of the Moon and Sun. So, it blocks the light of Sun frim reaching Moon. Hence, we see no reflection and it causes Lunar eclipse.
Answer:
A total lunar eclipse occurs when the moon and the sun are on exact opposite sides of Earth. Although the moon is in Earth's shadow, some sunlight reaches the moon. The sunlight passes through Earth's atmosphere, which causes Earth's atmosphere to filter out most of the blue light.
Explanation:
What is the formula to calculate speed?
O S= t/d
O S=d/t
OS=dxt
O S=txd
Answer:
the formula to calculate speed is d/t.
Is a tooth made out of matter or not matter?
Human teeth are made up of four different types of tissues.
An ion is when an atom or molecule has an electric change True or False
Answer:True
Explanation:
Science is an attempt to explain _____________
Question 5 options:
the truth concerning all things in Science
the supernatural
superstitions
natural phenomena
Answer:
A for sure
Explanation:
someone help with this pls
Answer:
12 B
13
0.00100176
Explanation:
The elements mercury and bromine are both liquids at room temperature, but mercury is considered a metal, and bromine is considered a non-metal. How can that be? Explain using properties you know of.
Answer:
At room temperature, mercury and bromine are of fluid consistency, it is because their melting or melting temperature is very low, so low that it reaches room temperature.
Compared to mercury and other metals, the more traditional metals have much higher melting temperatures.
On the other hand, bromine is not a metal, since it does not have the ability to oxidize with the presence of oxygen and also does not give up electrons.
Explanation:
Mercury in the periodic table is Hg, and bromine is Br
Which energy transformation produces electricity and is least likely to negatively impact the environment?
A) Generating electricity from a natural gas-fired power plant
B) Generating electricity from a coal-fired power plant
C) Generating electricity from a nuclear power plant
D) Generating electricity from a solar panel system
Hello!
The answer to this question is: D) Generating electricity from a solar panel system.Thank you for asking this question!
It would be greatly appreciated if you thanked me and marked me as the brainliest!
Have an amazing day.
The energy transformation which produces electricity and is least likely to
negatively impact the environment is generating electricity from a solar
panel system.
Generating electricity from solar panel involves the use of solar energy from
the sun to generate electricity . This type of energy doesn't emit any type of
harmful radiation or release toxic compounds into the atmosphere which
makes it the least likely to negatively impact the environment.
Other options emit any type of harmful radiation or release toxic compounds
into the atmosphere which makes option D the most appropriate.
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can someone help me with it
Answer:
false, it is theory of how the universe started
Answer:
it's answer is false you can write it