Answer:
Yes,they will have the same mass.
Explanation:
According to law of conservation of mass:
'Mass can neither be destroyed nor be created during a chemical reaction'
In a balanced chemical reaction :
Total numbers of atoms on the reactants side are always equal to the total numbers of atoms on the product side.
Total mass of the atoms on the reactant side of the equation is always equal to the total mass of atoms on the product side.
For example:
Number of atoms on reactant side =
=(2)2 Hydrogen atoms + (1)2 Oxygen atoms = 6 atoms
Number of atoms on the product side =
=(2)((2 Hydrogen atoms) + (1 Oxygen atoms)) = 6 atoms
Mass of of reactants = (2)(number of hydrogen atoms)(mass of hydrogen atom) + (1)(number of oxygen atoms)(mass of oxygen atoms)
= (2)(2)(1u)+(1)(2)(16u) = 36u
Mass of products = 2((number of hydrogen atoms)(mass of hydrogen atom)+(number of oxygen atoms)(mass of oxygen atom))
= 2((2)(1u)+(1)(16u)) = 36u
Mass of of reactants = Mass of products = 36u
the modern model of the atom shows that electrons are:
Explain Rutherford’s gold foil experiment. What particle did he discover?
Answer:
this my answer
Explanation:
Rutherford's gold foil experiment showed that the atom is mostly empty space with a tiny, dense, positively-charged nucleus. Based on these results, Rutherford proposed the nuclear model of the atom.What is 40g of calcium and 71 g of chlorine
Someone pls help me I will make you brain
Answer:
Its the first one
Explanation:
I learned this before
why is each individual produced by sexual reproduction unique?
Answer:
During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents. The genetic diversity of sexually produced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.
How many chiral carbon atoms are present in a molecule of 2,3,4-trichloropentane?
Answer:
The answer is 2.
Explanation:
Can you help me plss.. Answer the guide questions to write a sentence summary for photosynthesis. 1. How do plants make food?
CLUE: 2 raw materials
a. taken in from the roots and surroundings
b. taken in from the air of water
2. What act as helpers in the process? CLUE: 2 photosynthetic enzymes
a. obtained from the sun
b. the green pigment of the leaves 3. What are the two products of photosynthesis?
CLUE:
a. tastes sweet
b. the gas we breath
One:
plants make their own food through a process known as photosynthesis
Two:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy and stored in the form of starch which can be used later
Three:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product.
Answer:
1. b
2. a
3. b
Explanation:
1
2. How does a detergent remove a stain?
?
Answer:
By using various chemical compounds to lift the stain while being gentle enough to keep fabric intact.
write down ten laboratory safety rules
laboratory safety rules:
~Avoid wye contact with all chemics
~ Avoid skin contact with all chemicals
~Always wear safety glasses
~Don't eat in the lab
~Don't drink anything in the lab
~Avoid wearing jewellery
~Don't taste or sniff any chemicals
~Kn0w emergency exit routes
~Never leave containers of chemicals open
~Avoid distracting anyone else working in the lab
Hope this helped you- have a good day bro cya)
Help me Plz, I am really confused
204,900,000,000
How many significant digits are found?
Answer:
4
Explanation:
There are 4 significant figures because when there is not a decimal, then only numerical values over 0 are counted. So the numbers counted in sig figs are 2049, and none of the other 0s.
So if it was 204,900,000,000.0, then it would have 12 significant figures.
Which of the following animals is not a first-order prairie consumer? help fast
hawk
gopher
deer
squirrel
Answer:
The answer would be the hawk.
Explanation:
First-order consumers directly depends on grass or plants for survival.
A hawk gets its food from eating animals.
Again, hope this helps :D
how do ions form bonds, and describe the structure of the resulting compound.
Answer:
Electrons are transferred between atoms together in the ionic compound. The ions are arranged in a regular repeating pattern in an ionic crystal
Explanation:
Ions electrostatically attracts its counter ions and forms the ionic bond between these ions. The structure of ionic compounds depends on the number of atoms and bonded pair of electrons.
What is ionic bonding ?Ionic bonds are formed between metals and non-metals. Metals are electron rich and easily loss one or more electrons to the electron deficient non metals.
The loss of electrons make the atom forms a positive ion called cations. The gain of electrons make the formation of anions or negative ions. These positive ions and negative ions attracts electrostatically and forms ionic bond between them.
The structure of ionic compounds depends on the number of bonded atoms, size, presence of lone pairs etc. In solution ionic compounds exists as separate ions.
Find more on ionic bonding :
https://brainly.com/question/11527546
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2. Differentiate the types of tectonic plates.
Answer:
Explanation:
Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. ...
Divergent boundaries – where two plates are moving apart. ...
Transform boundaries – where plates slide passed each other.
What is a pure substance that contains atoms of more than one element called?
O a mixture
O a precipitate
O a compound
O a solution
Answer:
Pure substances made of more than one element are called. compounds. The chemical formula for a molecule of nitrogen is. N2. The balanced equation for the formation of water from the elements hydrogen and oxygen is.
Answer:
A compund
Explanation:
Did test got 100
How do anion formation and valence electrons relate?
Answer:
Atoms gain valence electrons to form anions.
Explanation:
Por que los egipcios podrían haber construido pirámides?
a bottle of water contains 20 oz of water. 1oz is equal to 29.57 milliliters. determine how many millimeters are in the bottle of water
Answer:
591.471 MILLIMETERS
Explanation:
Formula
for an approximate result, multiply the volume value by 29.574
29.574*20=591.471
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Miss Hawaii ; )
Using the formula velocity = distance/time, how fast does sound travel in air at 20 degrees C given a distance of 500 m and 3.92 seconds.
A- 3.92
B- 127 m/s
C- 2,941 m/s
D- 746 m/s
Answer:
B : 127m/s
Explanation:
= 500 ÷ 3.92
= 127.5
What metal is highly reactive and bonds easily with other elements
Answer: alkali metal
Explanation: ONLY if that is in you suggestions
if not i think this is right
Is it _________
To view _______ eclipse without eve protection.
A.Unsafe, lunar
B.Safe, solar
C.Unsafe, solar
D.Unsafe new moon
Answer:
unsafe, solar
Explanation:
A lunar eclipse covers the moon which is safe to look at. New Moon, again is simply the moon. However, we should never look at the sun, eclipsed or not!
Answer:
C, it is unsafe to view solar
without eye protection
Contrast the cause of the attraction in ionic bonds
and metallic bonds.
Help me out with this question , can someone give me the answer ?
:((
Answer:
I pretty usre they cause erosion wich makes fresh soil so B.
Explanation:
the part of an atom that has an overall positive charge is called
Choose the answer that best completes the sentence below.
Chopping up a fish is an example of a physical change; _______, grilling a fish is an example of a chemical change.
A. as a result
B. for instance
C. including
D. on the other hand
Answer:
on the other hand
Explanation:
I think its correct
Predict what would happen if plants disappear?
Decomposers will die because they will lose their food source.
All secondary consumers will die because they will lose their food source.
Oxygen will only be available during the daytime.
There will be a limited amount of oxygen in the air.
Answer:
All secondary consumers will die because they will lose their food source
Which elements are present in all organic compounds? 1. Hydrogen and oxygen 2. Nitrogen and Carbon 3. Nitrogen and oxygen 4. Hydrogen and Carbon
Answer:
my answer is num:3 Hydrogen and oxygen.
aluminum can be used to make soft drink cans because of which property?
A. It can be hammered into a thin sheet (malleability)
B.it can reflect light (shininess)
C.It can be drawn into long wires(ductility)
Answer:
A
Explanation:
Malleability describes the property of a metal's ability to be distorted below compression. It is a physical property of metals by which they can be hammered, shaped and rolled into a very thin sheet without rupturing. A soda can's walls are very thin, and therefore express the malleability of aluminum.
Someone pls help me I will make you brain
Answer:
The answer is steam of fossil fuels
Which of these is known as a push or pull upon an object that results from its interaction with another object?
Answer:
b
Explanation:
Answer:
force or velocity
Explanation:
I am not sure
