This particular alkane is distinguished from all the other alknes by reason of the shape of the alkane.
What are alkanes?The term alkanes has to do compounds that have only a carbon to carbon single bond. We have to note that alknaes can be cyclic, linear or branched. All this types of alkanes are easily recognized by shape.
This particular alkane is distinguished from all the other alknes by reason of the shape of the alkane.
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Answer: A) The shape
Explanation:
edge 22 - took the quiz and got it correct
hope it helps <3
paragraph about earth getting hotter /will give brainliest
Answer:
Scientists have measured global temperatures for over a hundred years and see that the Earth is getting hotter. The trend can be best visualized by comparing each year’s average temperature with the long-term average. This figure shows observations of the world’s annual average temperature made by the National Oceanic and Atmospheric Administration (NOAA). It compares each year’s temperature to the average over the entire century. Blue bars are years that were cooler than average and red bars are years that were warmer than average. In recent decades, the years have always been hotter. If there were no long-term temperature trend, you would expect a mix of red and blue bars throughout the record. That’s not what we see.
Extra greenhouse gases in our atmosphere are the main reason that Earth is getting warmer. Greenhouse gases, such as carbon dioxide (CO2) and methane, trap the Sun's heat in Earth's atmosphere.
Marine heat waves have already doubled in number since 1980 and are expected to become more intense as temperatures rise
Explanation:
If the specific heat of a material is 0.416 J/(g°C) and sample absorbs 50 J when it is heated from 30°C to 50°C what is the mass of the sample?
The mass of the sample of the material is 0.1664 g.
What is specific heat?The amount of energy needed to raise the temperature of one gram of a substance by one degree Celsius.
By the formula of specific heat
[tex]Q = mc \Delta T[/tex]
Given, that the specific heat (c) of material is 0.416 J/gC
The difference in temperatures is 30°C to 50°C
The mass=?
Q = heat, 50 J
Putting the values in the equation
[tex]\rm 50\;J = m \times 0.416 J/g^\circ C \times (50 - 30)\\\\m = \dfrac{0.416 J/g^\circ C \times 20}{50} = 0.1664 g[/tex]
Thus, the mass of the samples is 0.166 g.
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What is the lowest temperature in Kelvin (to the nearest thousandth) that would cause a red blood cell within the human body experience apoptosis?
The lowest temperature that would cause a red blood cell within the human body experience apoptosis is 338K.
What is aposptosis?Aposptosis is the death of cells in the am organisms which occur as a result of death in cellular processes or steps resulting in the death of a cells could be as a result of high temperature.
Therefore, The lowest temperature that would cause a red blood cell within the human body experience apoptosis is 338K.
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What is the initial temperature of a gas if the volume changed from 1. 00 l to 1. 10 l and the final temperature was determined to be 255. 0°c?
Answer:
206.99 C
Explanation:
V1 / T1 = V2 / T2 T must be in K units
V1 * T2/V2 = T1
255 C = 528.15 K
(1)(528.15)/1.1 = T1 = 480.14 K = 206.99 C
Is the chemical equation balanced?
Yes or no
Answer:
Yes the equation is balanced
Explanation:
There is 2Na and 2F on both sides which means LHS=RHS. Hence,its balanced.
A scientist recorded the following observations about a rock sample in her journal.
The rock is porous.
The rock has multiple layers.
The rock contains a fossil.
What type of rock did the scientist collect?
igneous , igneous , ,
sedimentary , sedimentary , ,
metamorphic , metamorphic , ,
obsidian
Answer:
Sedimentary rocks
Explanation:
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation.
The process of deep sediment burial causes sediment to get compressed and cemented resulting in sedimentary rock. Here the recorded observations of the scientist is about sedimentary rocks. The correct option is B.
What are sedimentary rocks?The rocks which are formed by the deposition and subsequent cementation of the material at the surface of the earth within the bodies of water can be defined as the sedimentary rocks. They are of three types. They are organic, clastic and chemical sedimentary rocks.
Sedimentary rocks are generated by the accumulation of the existing rocks or fragments of extinct organisms on the earth surface. They are formed from the pre-existing rocks or pieces of once living organisms.
The common sedimentary rocks are sandstone, limestone and shale. Biologic sedimentary rocks are formed when large number of living things die. Chert is an example for this.
Thus the correct option is B.
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can someone dm me if u know about chemistry plsss
The main purpose of filtration is to separate particles and fluid; therefore, the words to complete the phrase are particles and fluid.
What is filtration?This is a method used to separate particles in a suspension (substance that contains fluid and large particles).
What is the purpose of filtrating?The main idea of filtrating a substance is to separate the particles from the fluid.
What is an example of filtration?When tea is made, a filter is usually used to separate the leaves (solid particles) from the fluid.
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Which of the following is not true about elements? 1. Elements are made of atoms of the same type. 2. Each element has a unique set of physical and chemical properties. 3. Elements cannot be broken down into a simpler set of properties. 4 Elements are the building block of matter.
Sorry If This Is Late***
Elements can't be broken down, into a simplre set of properties. They are one strict unit & cannot be broken down, however they can be added together to make a compound.
HOPE THIS HELPS & good luck <3 !!!!!
What is defined as the energy required to start a chemical reaction?
O precipitate energy
O reactant energy
O activation energy
O heat
[tex]\huge\tt\fbox\pink{Activation \: energy}[/tex]
STAY SAFE, STAY HEALTHY AND BLESSEDHAVE A MARVELOUS DAYTHANK YOU& GOOD LUCK FOR UR ASSIGNMENT♡#JENNIFER♡________________________________how much energy is produced when CO2 is formed if each C-O bond releases 350 kJ?
Answer:
700 kJ
Explanation:
There are two C-O bonds in CO2
2 * 350 = 700
when an acid mixes with a bases it is called a combination reaction?
true
false
Question 15 of 35
A bog formed where there was once a pond.
Which three statements describe how the pond turned into the bog?
A. The pond started to fill with soil, but the soil could still hold
standing water.
O B. Large water plants grew in shallow water around the edge of the
pond.
O C. Land plants grew on dry soil that had completely filled the pond
Please explain
The statements that describe how the pond turned into the bog is as follows: Large water plants grew in shallow water around the edge of the pond.
What is a pond?Pond is an inland body of standing water, either natural or man-made, that is smaller than a lake.
A bog is an area of decayed vegetation (particularly sphagnum moss) which forms a wet spongy ground too soft for walking.
This means that a pond can become a bog when existing plants in the pond decays until the land becomes soft.
Therefore, the statements that describe how the pond turned into the bog is as follows: Large water plants grew in shallow water around the edge of the pond.
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Elements in Group IIA (also known as Group 2, or the alkaline earth metals) have similar properties because they all have the same number of ____
(multiple choice)
A. valence electrons
B. electrons
C. electrons needed to fill their octet
D. electron shells
Answer:
Electrons in their outer shell
Explanation:
They have similar properties they have the same number of electrons in their outermost shell.
What do blizzards consist of? (Select all that apply)
Question 1 options:
heavy snowfall
high winds
hail
extremely low temperatures
Answer:
Heavy Snowfall
High Winds
Extremely Low Temperatures
Reasoning:
Lots of snow, kinda self explanatory
high winds are needed to carry the snow that fast
its has to be below freezing for snow to even form
Please help me with this
Class 7
Answer:
a . Organ A is heart liquid B is blood
b. red is the colour of liquid B
c. the useful substance is oxygen and nutrients
d. carbon dioxide is the waste E
Rank these solutions from the most alkaline (1) to the least alkaline (5). POH = 0. 5 pH = 3. 5 [OH–] = 5. 62 × 10–5 M [H3O ] = 3. 16 × 10–7 M pH = 0. 5.
Answer:
1 4 2 3 5 from top to bottom
Explanation:
1 - pOH = 0.5
4- pH = 3.5
2- [OH–] = 5.62 × 10–5 M
3- [H3O+] = 3.16 × 10–7 M
5- pH = 0.5
if 0.01 mol neon gas at a particular temperature and pressure occupies a volume of 0.225 L. what volume would 0.05 mol neon gas occupy under the same conditions
If 0.01 mol of neon gas at a particular temperature and pressure occupies a volume of 0.225 L, then 0.05 mol of neon gas would occupy a volume of 1.125 L under the same conditions.
Given:
Number of moles of neon gas (n₁) = 0.01 mol
Volume of neon gas (V₁) = 0.225 L
We are required to find the volume of neon gas (V₂) when the number of moles (n₂) is 0.05 mol under the same conditions.
The relationship between the number of moles, volume, and pressure of a gas is given by the ideal gas law: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.
Since the temperature and pressure are the same in this case, we can rearrange the ideal gas law equation to solve for the volume:
V = (n₁ * V₁) / n₂
Substituting the given values into the equation:
V₂ = (0.01 mol * 0.225 L) / 0.05 mol
V₂ = 0.00225 L / 0.05 mol
V₂ = 0.045 L/mol
Therefore, 0.05 mol of neon gas would occupy a volume of 1.125 L under the same conditions.
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Which is characteristic of an exothermic reaction?
A. Material absorbs heat from its surroundings. B. Molecules in a material become more orderly.
C. Molecules in a material become less orderly. D. Material releases heat to its surroundings.
Answer:
D. Material releases heat to its surroundings.
Explanation:
use the ex in exothermic to remember the word
exit
as in
heat is exiting the material
khan academy
In rabbits, short fur (f) is dominant to long fur (1). what is the probability of two heterozygous rabbits having offspring with short fur?
25%
50%
75%
100%
50%
Because f is dominant to 1, it will be a 50/50 chance of the offspring having short fur, or long fur.
Pls correct me if im wrong
Chlorine gas can be produced in the laboratory by the reaction
Chlorine gas can be produced in the lab by the reaction is K₂Cr₂O₇ + 14HCl → 2KCl + 2CrCl₃ +7H₂O + 3Cl₂.
How chlorine gas is produced in laboratory?Chlorine gas is produced in many ways in laboratory. One of the ways is from potassium chromium oxide with hydrochloric acid.
The result is potassium chloride and chromium chloride and water and three molecules of chlorine.
Thus, the reaction is K₂Cr₂O₇ + 14HCl → 2KCl + 2CrCl₃ +7H₂O + 3Cl₂.
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Help pls chemistry stuff?
Answer:
saturated is the correct one
Answer: saturated
Explanation:
When a solution contains the maximum amount of solute that can dissolve under a given set of conditions, it is a saturated solution. Any more solute added will sit as crystals on the bottom of the container.
Jude has a mutation in the gene that codes for a certain digestive enzyme. However, these enzymes function normally.
What best explains how this is possible?
A. The mutation affects only one base.
B. The mutation affects only one amino acid.
C. The mutation does not get copied over to his mRNA.
D. The mutation does not alter the amino acid sequence for the enzyme.
Answer:
b
Explanation:
Hydrogen gas is collected over water at a total pressure of 95.0kPa. The volume of gas collected is 28.0mL at 25.0˚C. Determine the partial pressure of the hydrogen gas if the water vapor pressure is 3.17kPa.
GAS LAW:
Given:
Unknown:
Formula:
Solution:
Dalton's Law
P tot = P H₂O + P gas
95.0 = 3.17 + P gas
P gas = 91.83 kPa
A solution has a ph of 4. 75. What is the hydronium ion concentration? is the solution acidic or basic?
The hydronium ion concentration of a solution is 56,263. The solution is acidic.
What is pH?pH is potential hydrogen. It is the measurement of the acidity and basicity of any solution.
Given the pH of solution is 4.75
By the formula of hydronium ion
[tex]\rm pH = -log[H_3O^+]\\\\4.75 = -log[H_3O^+]\\\\antilog - 4.75 [H_3O^+]\\\\H_3O^+ = 56,234[/tex]
Thus, the hydronium ion concentration of a solution is 56,263. The solution is acidic.
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Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: ca2 , cr4 , cl−, s2−
The empirical formula of at least four binary ionic compounds that could be formed from the calcium, chromium, chloride and sulfide ions are CaCl₂, CrCl₄, NaCl and CaS respectively.
What are binary ionic compounds?If any compound which is composed of two different elements, one of which is a positive ion (metal), and the other is negative ion (non-metal) is called binary ionic compounds.
Binary ionic compound of Ca²⁺ is CaCl₂.Binary ionic compound of Cr⁴⁺ is CrCl₄.Binary ionic compound of Cl⁻ is NaCl.Binary ionic compound of S²⁻ is CaS.Hence, CaCl₂, CrCl₄, NaCl and CaS are the four binary ionic compounds.
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8. A sample of CO2 experiences a change in pressure from 239.18 kPa to 442.6 kPa. During
this change, the temperature is also changed from 267.86 K to 399.29 *C. If its new volume is
7680.5 mL, what was its original volume in liters?
Answer:
v1=35,679.7 ml
Explanation:
p1v1/t1=p2v2/t2
v1=t1p2v2/p1t2
v1=672.44*442.6*7650ml/267.86*239.18
v1=35,679.7 ml
Why do rocks on the ocean floor form a pattern of magnetized stripes? hurry hurry pls pls pls HURRY
Answer:
BEST ANSWER :The rocks contain iron that points in the direction the rocks move away from the ridge.
What is primarily released in radioactive decay?
A. Photons in the visible range
B. Radio frequency waves
C. Nuclear quarks and gluons
D. Particles or electromagnetic waves
What is primarily released in radioactive decay is : ( D ) Particles or electromagnetic waves
What is radioactive decay ?Radioactive decay is the breakdown of the nuclei of atoms which results in the release of energy and particles ( matter ) from the atomic nucleus. the energy released in the process is known as ionizing energy.
The primarily released particles in a radioactive decay are the alpha,beta and gamma particles
Hence we can conclude that primarily released in radioactive decay is : ( D ) Particles or electromagnetic waves
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Complete the following statements to describe solids, liquids, and gases. Select the correct answer from each drop-down menu.
A solid
has
a definite volume and
has
a definite shape.
A liquid
has
a definite volume and
does not have
a definite shape.
A gas
has
a definite volume and
does not have
a definite shape.
Answer:
Explanation:
Complete the following statements to describe solids, liquids, and gases. Select the correct answer from each drop-down menu.
Answer:
I got it right
Explanation:
Help please!!! Its chemistry last unit
Answer:
Number 4 is the answer
Explanation:
I hope it will help you