Answer:
The cytoplasm
Explanation:
Cytoplasm is the gelatinous liquid that fills the inside of a cell. It is composed of water, salts, and various organic molecules. Some intracellular organelles, such the nucleus and mitochondria, are enclosed by membranes that separate them from the cytoplasm.
Pls mark as brainliest
hope this helps:)
PLEASE HURRY !!!!!!!!!!!
Which of the following describes how the San Andreas Fault formed on Earth at a transformed boundary?
Plates moved in closer
Plates moved away from each other
Plates slid past each other
Plates moved with each other in the same direction
Answer: At convergent boundaries, plates move toward each other. They can push together and cause mountain ranges to form. At other times, one plate gets pushed down beneath the other plate. ... At divergent boundaries, plates move apart from each other.
Explanation:
I whould personally go with plates moved in closer
One problem with fuel-cell cars is that
gas is not readily available in
pure form.
Answer here
Answer: Hydrogen.
Explanation: One problem with fuel-cell cars is that hydrogen gas is not readily available in pure form. Fuel cell vehicles use hydrogen gas to power an electric motor. Unlike conventional vehicles which run on gasoline or diesel, fuel cell cars and trucks combine hydrogen and oxygen to produce electricity, which runs a motor. Hope this helps ^-^.
Answer:
Hydrogen.
Explanation:
What procedure did you use to complete the lab?
Outline the steps of the procedure in full sentences.
Hello, 3Coli Here!
Your Answer is Here:
I made a hypothesis, observed my experiments, used a procedure, had and prepared materials that are needed, evidence that support my thesis, and made a conclusion.
Hopefully, this helps!
Ask your question below!
Imagine being barefoot outside on a hot summer's day in a sunny place ,would
you rather be standing on concrete or grass? Why?
Answer:
Grass
Explanation:
On a hot summers day, while barefoot Concrete normaly has heat absorbed into it. (Or on top) So when you go to Walk on it, It normally burns the heel.
Hope I helped and Have a great day!
brainliest?
Answer:
grass
Explanation:
the concrete has a higher specific heat capacity and is basically hotter than the grass which has a lower one
Number of unpaired electrons in the electronic configuration 1s2 2s2 2p4 is
Answer:
2 electrons
Explanation:
Which ion forms the strongest ionic bond with a given anion?
Answer:
Explanation:
A cation with a 2+ charge will make a stronger ionic bond than a cation with a 1+ charge. A larger ion makes a weaker ionic bond because of the greater distance between its electrons and the nucleus of the oppositely charged ion.
what is the chemical formula of Fire
Answer:
The heat of the flame will keep remaining fuel at ignition temperature. The flame ignites gases being emitted, and the fire spreads. As long as there is enough fuel and oxygen, the fire keeps burning. Fuel + oxygen (from the air) = combustion products (mainly CO2 + H2O) + heat
Explanation:
Answer:
Chemical formula of fire is burning or combustion of air (particularly oxygen).
Explanation:
Please Brainliest
How many atoms are contained in 5.77 grams of aluminum? Express your answer in exponential notation (Ex: 6.02*1023 would be entered as 6.02e23). Round the digits to the hundredths place. No units required.
Answer:
5.09
Explanation:
Lithium Nitride is a ionic bonded compound because?
If an ion has 22 protons and 18 electrons, then what is its charge?
Which of the following molecules is most likely an enzyme?
water
glucose
protease
monosaccharide
Answer:
protease is an enzyme
Explanation:
It hydrolyse peptide bonds of proteins and also called proteolytic enzymes.
I KNOW THE ANS JUST NEED AN EXPLANATION...PLEASE I WILL Mark you the brainiest
Na+CL2=2NACL is the balanced reaction for the formation of table salt. Given 20 grams of Na and 10 grams of Cl2, which reactant is in excess? How much NaCL should be produced from these amounts of the two reactants?
Excess reactant : Na
NaCl produced : = 16.497 g
Further explanationGiven
Reaction(balanced)
2Na + Cl₂⇒ 2NaCl
20 g Na
10 g Cl₂
Required
Excess reactant
NaCl produced
Solution
mol Na(Ar = 23 g/mol) :
= 20 : 23 = 0.87
mol Cl₂(MW=71 g/mol):
= 10 : 71 g/mol = 0.141
mol : coefficient :
Na = 0.87 : 2 = 0.435
Cl₂ = 0.141 : 1 = 0.141
Limiting reactant : Cl₂(smaller ratio)
Excess reactant : Na
Mol NaCl based on mol Cl₂, so mol NaCl :
= 2/1 x mol Cl₂
= 2/1 x 0.141
= 0.282
Mass NaCl :
= 0.282 x 58.5 g/mol
= 16.497 g
What particles are contained in the nucleus of an atom?
O electrons & protons
O neutrons & electrons
O neutrons & protons
O pixels & electrons
0. Earth's rock is continually cycling through different states and locations. The diagram below shows the rock cycle. The labels for two processes are missing.
Weathering of
ROCKS at surface
IGNEOUS
ROCK
Uplin
SEDIMENTARY ROCK
METAMORIHIC ROCK
Melting
Which of these processes could be happening at the stage labeled 2?
o folding and mountain building
chemical changes due to heat and pressure
compaction and cementation of weathered sediments
subduction of an oceanic plate beneath a continental plate
Answer:
Chemical changes due to heat and pressure
Explanation:
Just took the test, hope this helps! :)
Answer:
Chemical changes due to heat and pressure
Explanation:
I took this test and got a 100%! :D
25 points !!!!!!
a 10 ml sample of borax- borate equilibrium solution reacts completely with 23.33 ml of a 0.1006 M HCl solution. calculate the concentration of borate and then the Ksp for borax
Answer:
See answer below
Explanation:
To do this, you need to write down the chemical reaction giving place here.
As this is to explain the thermodynamics of the borax-borate reaction, the general reaction is as follow:
Na₂B₄O₅(OH)₄.8H₂O(s) <---------> 2Na⁺(aq) + B₄O₅(OH)₄²⁻(aq) + 8H₂O(l)
Where:
Na₂B₄O₅(OH)₄.8H₂O(s) = Borax
B₄O₅(OH)₄²⁻(aq) = Borate ion
Now, in order to calculate the concentration of borate, this compound undergoes a titration with HCl. The reaction that takes place here is:
B₄O₅(OH)₄²⁻(aq) + 2HCl + 3H₂O <---------> 4H₃BO₃(aq) + 2Cl⁻(aq)
According to this reaction, it takes 2 moles of HCl to completely react with the borate ion, therefore, the expression to calculate the concentration will be:
2 nHCl = nB₄O₅(OH)₄²⁻
2M₁V₁ = M₂V₂
Replacing the data of concentration and volume of both compounds we have:
2 * 0.1006 * 23.33 = 10M₂
M₂ = 2 * 0.1006 * 23.33 / 10
M₂ = 0.4693 M
This is the concentration of the borate. Now, to calculate the Ksp we need to write the equilibrium reaction taking place with the borax:
Na₂B₄O₅(OH)₄.8H₂O(s) <---------> 2Na⁺(aq) + B₄O₅(OH)₄²⁻(aq) + 8H₂O(l)
Ksp = [B₄O₅(OH)₄²⁻] [Na⁺]²
As we already have the concentration of borax, we can also know the concentration of sodium. If we call concentration as "s" (Stands for solubility), and rewrite the expression of Ksp:
Ksp = s * (2s)²
Finally, replacing the value of the concentration we have:
Ksp = (0.4693) (2*0.4693)²
Ksp = 0.4693 * 0.881
Ksp = 0.4134
Hope this helps
"No matter what phase water
is in, the water molecules
stay the same; they just move
differently."
1: explain why this evidence matters
Answer:
Yes, water molecules remain the same despite the phase
Explanation:
When water is in the form of ice, it molecules remain the same only the distance between the molecule. This distance is higher than that of the inter molecular distance between liquid water molecules. Due to this reason ice is lighter than water.
Now in gaseous phase, the intermolecular distance increases thereby making it lighter than solid ice and liquid water.
Some students believe that teachers are full of hot air. If I inhale 2.1 liters of gas at a temperature of 200 C and it heats to a temperature of 370 C in my lungs, what is the new volume of the gas?
Answer:
2.86L
Explanation:
Given parameters:
V1 = 2.1L
T1 = 200°C = 200 + 273 = 473K
T 2 = 370°C = 370 + 273 = 643K
Unknown:
V2 = ?
Solution:
Since pressure is constant, we apply the Charles's law;
[tex]\frac{V1}{T1}[/tex] = [tex]\frac{V2}{T2}[/tex]
V is volume
T is the temperature
1 is the initial state
2 is the new state
[tex]\frac{2.1}{473}[/tex] = [tex]\frac{V2}{643}[/tex]
V2 = 2.86L
this is due today so please help me
Answer:
b north to south
Explanation:
Compared to atoms of metals, atoms of nonmetals generally
A)have higher electronegativities
B)have lower first ionization energies
C)conduct electricity more readily
D)lose electrons more readily
Compared to atoms of metals, atoms of nonmetals generally conduct electricity more readily. Therefore, option C is correct.
What are metal atoms ?The term metal atom is defined as an atom of an element that exhibits typical metallic properties, being typically shiny, with high electrical and thermal conductivity.
Metallic bonds form when the charge is spread over a greater distance than the size of individual atoms in solids. Most left elements in the periodic table form metallic bonds, such as zinc and copper.
Metals are defined as elements to the left of the line. Elements just to the right of the line have both metal and nonmetal properties and are referred to as metalloids. Nonmetals are elements at the far right of the periodic table.
Thus, option C is correct.
To learn more about the metal atom, follow the link;
https://brainly.com/question/1675378
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Can someone hel me On these questions please
Answer:
B, A, A
Explanation:
How many atoms are present in 2.30 moles of Carbon?
3.82 x 10-24 atoms -a
3.82 x 1023 atoms-b
1.38 x 1024 atoms-c
6.02 x 1023 atoms-d
shorthand representation of compounds
The skeletal formula, also called line-angle formula or shorthand formula, of an organic compound is a type of molecular structural formula that serves as a shorthand representation of a molecule's bonding and some
Answer:
The skeletal formula, also called line-angle formula or shorthand formula, of an organic compound is a type of molecular structural formula that serves as a shorthand representation of a molecule's bonding and some details of its molecular geometry.
Explanation:
hope this helps
Please help me 30 pointsss dont guess please be sure
Answer:
Acid
Explanation:
;)
What gases were in the second atmosphere? *
Answer:
Second Earth's Atmosphere
The second atmosphere, which was the first to remain with the earth, was created by volcanic outgassing and comet ice. There was a lot of water vapor, carbon dioxide, phosphorus, and methane in this atmosphere, but absolutely no oxygen.
Explanation:
A small bubble rises from the bottom of a lake, where the temperature and pressure are 8°C and 6.4 atm, to the water's surface, where the temperature is 25°C and pressure is 1.0 atm. Calculate the final volume (in ml) of the bubble if its initial volume was 2.1 ml.
a. 0.070 ml
b. 21 ml
c. 14 ml
d. 42 ml
Answer:
b
Explanation:
what does mechanical digestion mean ?
Answer:
Explanation:
Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.
What two processes occur at the mid ocean ridge?
Answer:
ridge push and slab pull
Explanation:
there are two processes through to be responsible for the spreading seen at mid ocean ridges and there is some uncertainty as to which is dominant. ridge push occurs when the weight of the ridge pushes at the rest of tectonic plate away from the ridge often towards a subduction zone. hope this helped
Worth 15 points
I need help plssss first answer is brainliest
Answer:
sodiom i think
Explanation:
what is the equation for calcium reacts with aluminum carbonate?
Answer:
3 Ca + Al2(CO3)3 -> 3 CaCO3 + 2 Al
Explanation:
Ca + Al2(CO3)3 -> CaCO3 + Al
Balanced equation
3 Ca (s) + Al2(CO3)3 (aq) -> 3 CaCO3 (aq) + 2 Al (s)