Answer:
ummm according 2 me babies are consumers and rocks are also consumers
!!29 POINTS!! PLS HELP ASAP
In the process of creating ammonia (NH3), nitrogen gas (N2 ) is combined with hydrogen gas (H2) that is extracted from hydrocarbons such as methane (CH4) or propane (C3H8) gas. Manufacturers must determine the appropriate amount of each reactant so as to produce the highest yield of product.
The balanced reaction for ammonia is below:
N2+2H3→2NH3
Explain why determining the limiting reactant is important to a manufacturer trying to produce NH3 and the effect of running out of reactant.
Answer:
The person who just wanted points is annoying
Explanation:
WHY WOULD YOU DO THAT
Help me with this one please
Single replacement/displacement
Further explanationGiven
Type involves free element
Required
Type of reaction
Solution
Single replacement/displacement occurs when a more active element replaces another less active element in the compound to form a new compound
The activity of this element can be seen from the voltaic series
Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au
The more to the left, the element is more reactive (easily release electrons) and the stronger reducing agent
The general formula for single replacement :
A + BC ⇒ AC + B
From this general formula shows that there are 2 free elements on both sides (reactants and products)
HELP ASAP I WILL GIVE BRAINLIEST
Which gas property in the chart above is extensive and cannot be used to identify the gas?
Specific heat of 0.98 J/g·°C
Density is 0.5 g/mL
Volume of 12.7 mL
Boils at -223°C
Answer
Boils at -223 degree C
Explanation:
Because gas doesn't have any boiling points
What is the main function of mitochondria?
Energy production
Energy production
Lipid production
Lipid production
DNA storage
DNA storage
Protein production
Protein production
how does the process of photothinthsis compare to the process of cellular respiration
Explain why air is a good conductor of heat
Answer:
Hope it helps!
Explanation:
Air molecules are too far to disperse heat energy to one another efficiently. Heat is conducted by molecules and atoms that are very closely bonded together and vibrating at high frequency.
Х
Which symbol can be used to indicate the pressure at which a chemical reaction is carried out?
Ο Α.
2500
O B.
N
0 0
2 atm
D
PL
Vaccination _____.
is always effective in preventing disease
provides passive immunity against disease
involves injecting the body with specific medication
should be given on a regular schedule from birth
(({Multiple choice for my review but NOT THE ANSWER FOR THIS QUESTION:
provides a type of adaptive immunity
injects a weakened or inactive form of a virus into the body
must be given on a regular basis from birth to 18 years of age.
People with my review please note that it doesn't have to be given on a regular basis. I grew up just fine without one every so often.}))
How many significant figures are in the following number?
3.40 X 10-6
Answer:
(2.68 x 10^22 atoms) x (238 g U / 6.022 x 10^23 atoms) = 10.59 g of U.
The number least significant figures in the multiplication and division problem is 3 significant figures (2.68). So, following significant figure rules for multiplication, your answer should have 3 significant figures.
The final answer is: 10.6 g U
Explanation:
Hopefully this helps :)
Which property of metals makes them good conductors of heat
Answer:
the molecules are tightly bound together, making it easy for electric currents to jump from one molecule to the next.
Explanation:
Answer:
They are good conductors of thermal energy because their delocalised electrons transfer energy. The close packing of the metal ions in the lattice. the delocalised electrons can carry kinetic energy through the lattice.
Explanation:
If two stars had equal absolute brightness, what else would most likely be equal?
O energy
O distance from Earth
O apparent magnitude
o chemical composition
help please time timed
Answer:
C - apparent magnitude
Explanation:
What would happen to the universe if the Law of
Conservation of Matter were not upheld? If it
wasn't actually a thing?
which isotope of hydrogen is unstable
Answer:
Hydrogen has three naturally occurring isotopes: 1H (protium), 2H (deuterium), and 3H (tritium). Other highly unstable nuclei (4H to 7H) have been synthesized in the laboratory, but do not occur in nature. The most stable radioisotope of hydrogen is tritium, with a half-life of 12.32 years.
Explanation:
i really hope i helped ya out! good luck!
whats the formula for soduim hydrogen carbonate
Answer:
NaHCO3
Explanation:
Answer:
NaHCO₃
(You can use regular searches to find formulas by the way, much faster)
the difference between these two chemical formulas: 4 H2O and H8O4.
Answer:
Explanation:
The given chemical formula is;
4H₂O H₈O₄
H₂O signifies 2 atoms of hydrogen bonding with 1 atom of oxygen
H₈O₄ signifies 8 atoms of hydrogen bonding with 4 atoms of oxygen
The 4 coefficient before H₂O signifies the number of moles.
It appears H₂O is 4 moles of water
H₈O₄ is 1 mole of the compound
The number of moles of each of the compound differs.
The difference between the two chemical formulas has been on the basis of the number of the molecules present. There have been 4 molecules of [tex]\rm H_2O[/tex], while only 1 molecule of [tex]\rm H_8O_4[/tex].
The chemical formula has been used for the determination of the number of atoms of each element present in the compound.
The chemical formula 4 [tex]\rm H_2O[/tex] gives the idea that there have been 4 molecules of water, with each molecule has consisted of 2 hydrogens and 1 oxygen atom. The total number of atoms has been 8 hydrogen atoms and 4 oxygen atoms.
The chemical formula [tex]\rm H_8O_4[/tex] gives insight into the presence of 1 molecule having 8 atoms of hydrogen and 4 atoms of oxygen.
The similarity in the chemical formula has been the presence of the same number of atoms. The difference between the two chemical formulas has been on the basis of the number of the molecules present. There have been 4 molecules of [tex]\rm H_2O[/tex], while only 1 molecule of [tex]\rm H_8O_4[/tex].
For more information about the chemical formula, refer to the link:
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How many neutrons are present in 21Ne?
The number of neutrons present : 11
Further explanationGiven
²¹Ne
Required
Number of neutrons
Solution
In the following element notation,
[tex]\large {{{A} \atop {Z}} \right X}[/tex]
X = symbol of element
A = mass number
= number of protons + number of neutrons
Z = atomic number
= number of protons = number of electrons, on neutral elements
So the symbol above shows the mass number Ne: 21
Ne itself has an atomic number of 10, so the number of neutrons :
number of neutrons = mass number - atomic number
number of neutrons = 21 - 10
number of neutrons = 11
Please help! I give brainliest, stars, and hearts!
Which of the following statements is NOT part of the cell theory? *
A) All cells are produced from other cells.
B) Cells can absorb food and oxygen
C) All living things are composed of cells.
D) Cells are the basic units of structure and function in living things.
Answer:
B B B B B B B B B B B B B B B B B B B B B B B B
b is not cell theory
The isotope 38Sr 90 is one of the extremely hazardous species in the residues from nuclear power generation. The strontium in a 0.500-g sample diminishes to 0.393 g in 10.0 yrs. Calculate the half-life.
Answer:
Half-life = 28.8 years
Explanation:
The radioactive decay of an atom follows the equation:
Ln[A] = -kt + ln[A]₀
Where [A] is actual amount of isotope after time t; k is decay constant and [A]₀ initial amount of isotope
Solving for k:
Ln[0.393g] = -k*10yrs + ln[0.500]
-0.2408 = -k*10yrs
0.02408yrs⁻¹ = k
Half-life, is:
Half-life = ln 2 / k
Half-life = ln 2 / 0.02408yrs⁻¹
Half-life = 28.8 years
The isotope [tex]38Sr^{90}[/tex] is one of the extremely hazardous species in the residues from nuclear power generation. The strontium in a 0.500-g sample diminishes to 0.393 g in 10.0 yrs, the half-life is - 28.78
Formula:
radioactive decay follows first-order kinetics,
k = [tex]\frac{1}{t}ln\frac{a}{x}[/tex]
Given:
a = initial amount = 0.5 g
x = amount of isomer after 10 years = 0.393 g
t= time = 10 years
Solution:
k = [tex]\frac{1}{10}ln\frac{0.5}{0.393}[/tex]
= 0.02408
k = [tex]\frac{0.693}{t/2}[/tex]
T(1/2) = half-life time
= [tex]\frac{0.693}{k}[/tex]
= [tex]\frac{0.693}{0.02408}[/tex]
= 28.78 years.
Thus, The isotope [tex]38Sr^{90}[/tex] is one of the extremely hazardous species in the residues from nuclear power generation. The strontium in a 0.500-g sample diminishes to 0.393 g in 10.0 yrs, the half-life is - 28.78
Learn more:
https://brainly.com/question/1160651
why is the sky orange and red at sunset
At sunset the light from the sun grazes across the surface of the earth, passing through a long column or pathlength of atmosphere. During its passage through the atmosphere the blue components of the light are reduced in intensity, making the transmitted beam of sunlight more yellow or even red in color.
hope this helps ^^
Answer:
Here ya go ;)
Small particles of dust and pollution in the air can contribute to (and sometimes even enhance) these colors, but the primary cause of a blue sky and orange/red sunsets or sunrises is scattering by the gas molecules that make up our atmosphere. ... In this way, clouds act as a screen on which nature's colors are painted.
For the equation BaCl2 + Na2SO4 → BaSO4 + 2NaCl, how many chlorine atoms are on the reactants side and on the products side?
reactants: 1; products: 1
reactants: 1; products: 2
reactants: 2; products: 1
reactants: 2; products: 2
Answer:
The balanced chemical reaction is written as follows:
bacl2 + na2so4 → baso4 + 2nacl
Therefore, the number of chlorine atoms in the reactants side and the products side would be 2 atoms in both sides which should be the case because the number of atoms in each side should have the same number.
Explanation:
Internet
A sample of water contains 5.24x10^22 molecules. How many moles are in this sample?
Answer:
0.087 moles of water
Explanation:
Given data:
Number of molecules of water = 5.24×10²² molecules
Number of moles of water = ?
Solution:
The given problem will solve by using Avogadro number.
1 mole = 6.022 × 10²³ molecules of water
5.24×10²² molecules × 1 mol / 6.022 × 10²³ molecules
0.87×10⁻¹ mol
0.087 mol
Avogadro number:
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
What is the number of the group that has the most reactive nonmetals (give number and letter- Ex 1A, 2A, etc.)?
Answer:
Group 7A
Explanation:
The group 7A elements consists of the most reactive non-metals on the periodic table.
This group is known as the group of halogens. They consist of element fluorine, chlorine, bromine, iodine and astatine.
The elements in this group have the highest electronegativity values. They have 7 valence electrons and requires just one electron to complete their octets. This way, they are highly reactive in their search for that single electron.How many Molecules are in 20 grams of CO?
Answer:
2.74 x 1023 molecules of CO2.
Explanation:
There are 2.74 x 1023 molecules of CO2.
Is Na+H20 -> H2+ NaOH a single replacement, Double Replacement or A Decomposition reaction
Answer:
Single Replacement
Explanation:
Single Replacement reactions are A + BX = AX + B. It's easy to tell if somthing is a single replacement reaction by seeing if it is a lone element like Sodium or Calcium
what does inductive effect mean?
Answer:
Tbh I looked it up but here is what I found. I hope it helps
Explanation:
In chemistry, the inductive effect is an effect regarding the transmission of unequal sharing of the bonding electron through a chain of atoms in a molecule, leading to a permanent dipole in a bond.
Which of the following elements will form +4 ions?
а
Gallium
b Germanium
C Calcium
d Magnesium
Answer:
gallium and germanium
Explanation:
hope it will help you
The element that would form +4 ions is Germanium. The correct option is b Germanium
From the question,
We are to determine which of the given elements will form +4 ions.
Gallium belongs to group 13 and will form +3 ions because the its oxidation state is +3.
Germanium belongs to group 14 and it forms stable oxidation state of +2 and +4. Therefore, Germanium will form +4 ions.
Calcium belongs to group 2 on the periodic table. Its oxidation state is +2 and it forms +2 ions.
Magnesium also belongs to group 2 on the periodic table. Its oxidation state is +2 and it forms +2 ions.
Hence, the element that would form +4 ions is Germanium. The correct option is b Germanium
Learn more here: https://brainly.com/question/21354182
The student carried out three titrations. The results are shown below (pic)
Use the student's concordant results (those within 0.10 cm of each other)
to work out the mean volume of sulfuric acid added.
Answer:
yes
Explanation:
How do you decide which conversion factor to use?
Answer:
When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot. To convert minutes to hours, the appropriate conversion value is 60 minutes equal 1 hour
Explanation:
hope this helps have a good night/day :) ❤
Tightly packed molecules that vibrate in place describe a
O solid
O liquid
gas
what is meant by the following terms:
1.rearing.
2.shearing.
3.sericulture
The Meaning :-
1. Rearing Is The Process Of Keeping, Feeding, Breeding, And Medical Care Of Useful Animals.
2. Shearing Is The Process Of Removing The Fleece Of Sheep, Along With A Layer Of Skin By A Large Razor, Clipper Or A Shearing Machine.
3. Sericulture Is The Rearing Of Silkworms On A Commercial Scale.