Answer:
The correct option is;
A. Branched chain alkanes
Explanation:
By the process of cracking of petroleum, higher quality petrol are formed by converting straight chain petrol to branched petrol, which are the grade of petrol that burns more smoothly and therefore efficiently within internal combustion engines
The cracking process includes;
a) The conversion of alkanes which are large molecules into branched octanes
b) The conversion of alkanes with straight chain into branched chain alkanes
c) The formation of a branched chain alkane and an alkene from straight chain alkanes
d) The formation of branched chain alkane and hydrogen gas from a straight chain alkane.
Can someone help me please!(I will mark you brainliest)
Answer:
ok Look at it and tell me if you think its correct :}
Jonah realize even though she’s crushing the cans in the amount of material in the can is unchanged which of the following describes the reaction that is taking place
a change in form or appearance of matter
Explanation: CAUSE IT STILL IS THE MATERIAL JUST IN A DIFFERENT SHAPE
Answer:
A change in form, or appearance of matter. Is your answer, can I have Brainliest? :) Have a great day! Hope it's right!
500 mL of He at 98 kPa expands to 750 mL.
500 mL of He at 98 kPa expands to 750 mL. Find P2.
P₂ = 65.3 kPa
Further explanationGiven
V₁=500 ml
P₁=98 kPa
V₂=750 ml
Required
P₂
Solution
Boyle's Law
At a constant temperature, the gas volume is inversely proportional to the pressure applied
[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]
Input the value :
[tex]\tt P_2=\dfrac{P_1.V_1}{V_2}\\\\P_1=\dfrac{98.500}{750}\\\\P_2=65.3~kPa[/tex]
HELP!! I WILL GIVE BRAINLIEST
Earth's magnetic reversals are recorded in
A. the asthenosphere
B. sea-floor rock
C. deep-ocean trenches
D. the mantle
An object is moving across a surface, but it does not gain or lose speed. Which best describes the object’s force?
Answer:
Explanation:
the vector sum of all such forces which equals zero for an object at rest. CASE 1: Considering a basketball of weight 1kg, if it has been kept stationary on the ground, there are two forces acting on it. These are it's weight (gravity) and equal and opposite force from the ground (normal reaction).
Answer:
The net force is zero. :)
Explanation:
Which elements are abundant in visible universe
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
HOPE THIS HELPED <3
what is the molar mass of nickel (ll) chloride(NiCl2)
Answer:
Explanation:
yt
Answer:
129.5994 g/mol
Explanation:
What did you include in your response? Check all that
apply.
O No, thermal energy is not being transferred by
radiation in this image.
O The eggs are in direct contact with the metal pan,
which is in direct contact with the gas flame.
O Thermal energy is being transferred by conduction.
O Radiation transfers thermal energy by
electromagnetic waves.
O Radiation does not transfer thermal energy by
direct contact.
Which periodic table trend is represented by the blue arrows?
Answer:
Periodic trends are specific patterns that are present in the periodic table that illustrate different aspects of a certain element, including its size and its electronic properties. Major periodic trends include: electronegativity, ionization energy, electron affinity, atomic radius, melting point, and metallic character. Periodic trends, arising from the arrangement of the periodic table, provide chemists with an invaluable tool to quickly predict an element's properties. These trends exist because of the similar atomic structure of the elements within their respective group families or periods, and because of the periodic nature of the elements.
how do humans benefit from photosynthesis
Answer:
Explanation:
Without photosynthesis there would be no oxygen in the earth's atmosphere and we wouldn't be here!
How many moles of Gold (Au) are in 3.60x10-5 g?
Choose the correct set up from the given choices.
a. .000360g divided by (196.96g/1 mol)
b. .0000360 g multiply by (1mol/196.96 g)
c. .00360 g divided by (1mol/196.96 g)
d. .0000360 g divided by (1mol/196.96 g)
Explanation:
[tex](.0000360 gAu} )\frac{1molAu}{196.96gAu}= ? mol Au[/tex]
Hello guys sorry for spamming again but I have to do this whole thing and the end of trimester for my school is today so I need to get good grades especially is science so here is the image please answer that. Thanks!!
Answer:
all you need if yo look up and say do plants grow without soil but yes they can grow without soil but they cannot grow without the necessities that soil provides.
A pure substance is one that_____
a. Has been filtered
b. is an element or compound
c. If found in nature
d. Has been cleaned
Answer:
gimme points
Explanation:
What are some examples of HIGH resistance? Question 2 options:
long wire, wide wire, more resistors
wide wire, short wire, less resistors
long wire, narrow wire, more resistors
narrow wire, less resistors, long wire
(PLEASE HURRY! I NEED TO FINISH THIS QUIZ)
Answer:
long wire, wide wire, more resistors
long wire, narrow wire, more resistors
Explanation:
longer wires have greater resistance. The longer the wire the greater the resistance.
The answer is Long wire, Narrow wire, more resistors
Evidence:
A scientist observes plant roots growing through the mountain side. This is evidence for which type of natural process?
Physical weathering
Chemical Weathering
Erosion
Deposition
Answer:
I think chemical Weathering
Answer:
Deposition is the answer
Explanation:
if a car travels 350 miles in 7 hours what was the speed
Answer:
50 mph
Explanation:
Answer:
5 miles per hour
Explanation:
TRUST ME
calculate the molar mass of cacl2
Answer:
[tex]\boxed {\boxed {\sf 110.98 \ g/mol}}[/tex]
Explanation:
The molar mass is the mass of a substance in grams per mole.
To find it, add the mass of each element in the compound. These masses can be found on the Periodic Table.
The compound given is:
[tex]CaCl_2[/tex]
The compound has 1 Ca (calcium) and 2 Cl (chlorine).
Mass of Calcium
The molar mass of calcium is 40.08 g/mol There is only one atom of Calcium in CaCl₂, so the number above is what we will use.Mass of Chlorine
The molar mass of chlorine is 35.45 g/mol There are two atoms of chlorine in CaCl₂, therefore we need to multiply the molar mass by 2. 35.45 * 2= 70.9 g/molMolar Mass of CaCl₂
Now, to find the molar mass, add the molar mass of 1 calcium and 2 chlorine. 40.08 g/mol + 70.9 g/mol =110.98 g/molThe molar mass of CaCl₂ is 110.98 grams per mole.
A 30 gram ball is at rest. Next, a force pushes the ball to the north for 2.5 seconds and the ball accelerates for a rate of 0,70 m/s/s. How fast is the ball going after the 2.5 seconds of acceleration? For credit, who work in detail
Answer:
1.75m/s or 6.3km/hr
Explanation:
here,
acceleration (a) = 0.7m/s^2
mass (m) = 30g
time (t) = 2.5s
initial velocity (u) = 0m/s
final velocity (v) = ?
now,
v = u + at
or, v = 0 + 0.7 * 2.5
hence, Final velocity (v) = 1.75 m/s
if u want to convert to km/hr
then,
1.75 * 3.6 (we know that 1m/s = 3.6km/hr)
= 6.3km/hr
Which pair of statements most accurately describes Earth's position relative to
the sun in late March and in late September?
Answer:
A
Explanation:
Is ceramic a good insulator
d. what happens when an iron nail is kept in copper sulphate solution?
Answer:
it changes color from blue to light green.
Explanation:
due to copper iron nail functions
Answer:
give the other person brainlieset plz
Explanation:
why is the layer of fat on top
Answer:
The solid layer of fat on top protects the broth from freezer burn. When I take the broth out of the freezer I use a butter knife to pop the fat cap off before defrosting. I do save chicken fat from soup and use it instead of butter or olive oil when I cook onions.
Explanation:
hit the heart
Which science process skill uses numbers to describe objects
Answer: Science process skills include observing qualities, measuring quantities, sorting/classifying, inferring, predicting, experimenting, and communicating.
Part of an important cellular process involving a DNA strand is modeled below
12000
What is the purpose of this cellular process?
F Preserving genetic information for future generations
G Deleting the information in the sequence produced from the DNA template
# Transcribing information in the DNA sequence for use by the cell
J Producing more nucleotides for the DNA sequence
Answer: transcribing information to the dna sequence for use by the cell
Explanation:
does the state of matter change in sugar solution
Answer:
yes
Explanation:
the sugar was a solid but after being dissolved in a liquid it changed state
SOMEONE PLEASE HELP ME! provide explanations please
Answer:
hope this document helps! it's kinda hard to type out the explanation but ill try
Explanation:
divide the percenatge by the molar mass of the element.
(do this for both elements) \
find the lowest number and divide the results with it
now you have your empirical formula (with the rounded answers)
then find the molar mass of your empirical formula
divide the number given (267) by the molar mass to get a rounded number.
multiply that rounded answer to your empirical formula to get your empirical formula. :)
1. A 50 gram sample of a radioisotope decays to 12.5 grams in 14.4 seconds. What is
the half-life of this isotope?
Answer:
Half life = 7.2 seconds
Explanation:
[tex]from \: decay \: equation \\ 2.303 log( \frac{n.}{nt} ) = kt \\ 2.303 log( \frac{50}{12.5} ) = k \times 14.4 \\ k = \frac{2.303 log( \frac{50}{12.5} )}{14.4} \\ k = 0.096288 {s}^{ - 1} \\ since \: half \: life = \frac{ ln(2) }{k} \\ half \: life = \frac{ ln(2) }{0.096288} \\ half \: life = 7.2 \: seconds[/tex]
When glucose is totally oxidized to CO2 and H2O, how many ATP molecules are made by oxidative phosphorylation out of a maximum yield of how many ATP molecules?
Answer: 26 out of 30.
Explanation:
Out of 30 ATP molecules, 26 are produced from maximum oxidative phosphorylation production. Two more come from glycolysis and two more are from the citric acid cycle.
To power other cellular processes, ATP captures and releases chemical energy obtained from the breakdown of food molecules.
It requires energy to melt ice. Applying salt to the ice created a chemical reaction melting the ice. Were did the energy come from to melt the ice? *
Answer:
HOPE IT HELPS...
Explanation:
When added to ice, salt first dissolves in the film of liquid water that is always present on the surface, thereby lowering its freezing point below the ices temperature. Ice in contact with salty water therefore melts, creating more liquid water, which dissolves more salt, thereby causing more ice to melt, and so on
n the diagram shown, when an object ‘X’ is brought near the ring shaped magnet, the magnet moves away from it. Four friends are discussing what they can say about X. Nikhil: X can be a piece of any metal. Shailaja: X can only be a piece of iron. Akash: X is definitely a magnet. Vinay: X can neither be a magnet or an iron piece. Who is correct?
Answer:
Akash
Explanation:
it could be a magnet with the same poles facing eachoher