Answer:
2.08 L
Explanation:
[tex]V_{2} = V_{1}[/tex] [tex](\frac{P_{2} }{P_{1} })[/tex]
= 2.50L × [tex](\frac{1.25 atm}{1.5 atm} )[/tex]
=2.08L
Explain why world food shortages could be reduced by growing more algae.
can someone do this for me i wasent there when we learned it
Question is in picture
Answer:
Explanation: hELLO its b
What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved?
Where in nature would we find pure
sand that does not contain smaller or
larger particles?
Explanation:
Sand is a common material found on beaches, deserts, stream banks, and other landscapes worldwide. In the mind of most people, sand is a white or tan, fine-grained, granular material. However, sand is much more diverse - even beyond the pink sand beaches of Bermuda or the black sand beaches of Hawaii.
A toy car rolls 8 meters in 2 seconds. What is the average speed of the toy car?
16 m/s
10 m/s
4 m/s
6 m/s
butanoic acid + 1-pentanol
catalyst
→ water +X
Given the equation:
To which class of organic compounds does product X belong?
1. alcohol
2. Ester
3. Ether
4. 4. alkane
Answer: X is an Esther
Explanation: alcohol and carboxylate acid forms esters
When a carboxylic acid and alcohol react then-new substance is produced from esterification and hence is called an ester. Thus, option 2 is correct.
What is esterification?Esterification is the process to make esters from carboxylic acids and alcohol in the presence of an acid catalyst (dry sulphuric acid). The -COOH group of the carboxylic acids contributes to the formation of the esters.
The esterification reactions are reversible reactions and occur at a slower pace. The reaction between an acid and alcohol is shown as:
Butanoic acid + 1-pentanol (catalyst) → water + ester
Therefore, option 2. ester is produced.
Learn more about esters here:
https://brainly.com/question/495799
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Describe how crude oil is separated into fractions by fractional distillation.
Answer:
Crude oil is separated by fractional distillation. Crude oil is heated to vaporize the different hydrocarbons in a tank which is cool at the top and hot at the bottom. The vapours then rise and the different hydrocarbons condense at their specific boiling points, allowing them to be separated.
Students were shown models of two atoms and asked to make a list of similarities and differences between the models.Which statement about the atomic models shown is correct?
Answer:
lol you don't have the models showing but I found this question online
" Both models represent atoms with the same atomic number. "
Explanation:
hope this helps
Soil is the result of weathering?
Answer:
yes, soil is weathered from the bedrock below the subsoil. Soil contains whatever the bedrock below it consist of whatever the bedrock below it is made of.
Explanation:
Hope this helps!
Describe bonding in water molecules using the VBT. Show the overlap of hybridised orbitals leading to the formation of H2O molecule. Account for the bond angle 104.5°
Determine the concentration of strontium ions in saturated solution of strontium sulfate, SrSO4, if the Ksp for SrSO4 is 3.2x10-7.
Answer:
[tex][Sr^{2+}]=5.66x10^{-4}M[/tex]
Explanation:
Hello there!
In this case, given the solubility equilibrium of strontium sulfate:
[tex]SrSO_4(s)\rightleftharpoons Sr^{2+}(aq)+SO_4^{2-}(aq)[/tex]
Whose equilibrium expression is:
[tex]Ksp=[Sr^{2+}][SO_4^{2-}][/tex]
In such a way, we can introduce the molar solubility, s, in the equation to obtain:
[tex]Ksp=s*s=s^2\\\\3.2x10^{-7}=s^2[/tex]
Then, we apply the square root to obtain:
[tex]s=\sqrt{3.2x10^{-7}}\\\\s=5.66x10^{-4}M[/tex]
Which is also the concentration of strontium ions:
[tex][Sr^{2+}]=5.66x10^{-4}M[/tex]
Best regards!
Energy in a vacuum travels by ___.
A. radiation
B. conduction
C. convection
Homeostasis is the balance between your internal and external environments. We
learned three major factors that your body helps to regulate. Match each description
of body responses on the right to the types of regulation on the left.
Regulation of Body
Temperature
Regulation of Blood pH
Regulation of Blood glucose
———————————————
1. Sweat or shivering helps control
this
2. Breathing faster or slower help
adjust this
3. Eating or drinking help adjust this
Answer:
They are already matched for you. It goes
1.
2.
3.
in the order of the questions.
pls answer no robots
Si en un planeta la presión atmosférica es mayor que 5,1 atm terrestres, los habitantes podrían nadar en ríos de dióxido de carbono líquido?
Answer:
Los habitantes del planeta con una atmósfera superior a 5,1 atm de la Tierra, no estarían nadando en ríos de dióxido de carbono líquido
Explanation:
De las tablas de datos termodinámicos, la presión a la que el vapor de dióxido de carbono está en equilibrio con su estado líquido a una temperatura ambiente de 25 ° C es 6,401 kPa, lo que equivale a 63,17296 atm.
Por lo tanto, a una presión de 5.1 de la atmósfera terrestre, el dióxido de carbono es completamente gaseoso y los habitantes del planeta con una presión atmosférica de 5.1 atm de la Tierra todavía observarían solo hidrógeno gaseoso y no estarían nadando en ríos de dióxido de carbono líquido.
What element is 1s^2 2s^2 2p^6 3s2 3p^3
Answer:
Phosphorus
Explanation:
If you add up all the electrons (the exponents) it equals 15 which is the atomic number of phosphorus. And since stable atoms have the same number of protons and electrons it'll be phosphorus
Gas Giant Planets Rocky Small Solar System Star Sun
The ____1_____ and the ____2____ form the ____3____. The sun is an enormous ____4____. The planets move around the sun. Mercury, Venus, Earth, and Mars are the four ____5____, ____6____ planets. Jupiter, Saturn, Uranus, and Neptune are the four ____7____, ____8____ planets
Unsorted sands have a lower porosity.
True
O False
Answer:
True
Explanation:
Helpppp plzzz (will mark brainlest)
Answer:
hydrogen and cloride + hydrogen
What is the pH of a solution with a [H+] concentration of 1.0 x 10^-6 M?
Answer:
6Explanation:
The pH of a solution can be found by using the formula
[tex]pH = - log ([ {H}^{+} ])[/tex]
From the question we have
[tex]pH = - log(1.0 \times {10}^{ - 6} ) \\ = 6[/tex]
We have the final answer as
6Hope this helps you
Why do plants need sunlight for photosynthesis?
Explanation: Plants using photosynthesis will take in carbon dioxide from the air, bring up water from the roots, and use sunlight as the energetic source to create sugar from water and carbon dioxide. Plants contain a molecule called chlorophyll, and the chlorophyll is what absorbs the sunlight
Cu + 2 AgNO3 Cu(NO3)2 + 2 Ag
How many grams of silver nitrate can be formed from 29 grams of silver?
Answer:
the answer is "a" took the test
Explanation:
Who formed the first atomic theory?
The answers is John Dalton FYI I’m just letting people know just incase they don’t know
Answer:
Leucippus and Democritus
Explanation:
Hope this helps~ :D
Thank you so much! :D
Which one of the samples contains the most molecules?
o
A. 1 mol of CO2(g)
B. 1 mol of UF6(g)
O C. 1 mol CH3COOH()
D. They all have the same number of molecules
Answer: D is right
Explanation: One mole contains 6.0225 ·10^23 molecules
Despite of the substance
Cuántos mililitros de agua hay en 3 litros de una botella de naranjas y las solucion tiene una concentracion de 20% v/v
Respuesta:
2400 mL
Explicación:
Paso 1: Información dada
Volumen de solución: 3 L (3000 mL)Concentración de naranja: 20 % v/vPaso 2: Calcular el volumen de naranja
La concentración de naranja es de 20 % v/v, es decir, cada 100 mL de solución hay 20 mL de naranja.
3000 mL Sol × 20 mL Naranja/100 mL Solución = 600 mL Naranja
Paso 3: Calcular el volumn de agua
El volumen de soluciónes igual a la suma de los volúmenes de naranja y agua.
VSolución = VNaranja + VAgua
VAgua = VSolución - VNaranja
VAgua = 3000 mL - 600 mL = 2400 mL
Elements in Group I of the Periodic Table react with water.
Which row describes the products made in the reaction and the trend in reactivity of the elements?
Answer:
B
Explanation:
What common item can detect the presence of radiation? A. Bleach B. A roll of photographic film C. LED watch D. Baking soda
Answer: B- a roll of photographic film
Explanation:
Founders education answer
A hot, gas-like mixture with no definite volume or shape that is made up of electrically charged particles is _________. * 1 point
Answer:
Plasma
Explanation:
In addition to solid, liquid and gas, there exists a fourth state of matter called the plasma.
Plasma is a state of matter involving super=heated matter such that electrons leave atoms thereby leading to the formation of an ionized gas.
In summary, plasma is a hot, gas-like mixture with no definite volume or shape that is made up of electrically charged particles.
A. argon
B. potassium
C. non of these
D. calcium
someone please help me
Answer:
The correct answer is - potassium.
Explanation:
Electron configuration is the representation of the distribution or arrangement of electrons in orbital shells and subshells of a particular atom. IN this question the given electron configuration is -
1s^22s^22p^63s^23p^64s^1
By the configuration, it is clear that it belongs to
- the s group as the last electron is n s orbital and
- only 1 electron which means it belongs to group 1 in the periodic table
- last orbital is 4 so it is from the 4th period
- total electron = 19
Thus, the correct answer is - Potassium or K.