Answers
Answer:
3
Explanation:
Subscript basically tells you the number of element or ions present in a compound. In this case the subscript of carbon which is 3 denotes that only three carbon atoms is present in the compound.
Related Questions
Step 7: Determine the Limiting Reactant (Trial 2)
50
Analysis: The limiting reactant(s) appeared to be
because ...
Answers
Answer:
aluminum
no aluminum is left over
Explanation:
the next answers for step 7 are 0.019, 0.0093, aluminum
Answer:
Aluminum because no aluminum is left over
Explanation:
how many molecules are in 0.89 of silver
Answers
Answer:
5.36 × 10²³ molecules
Explanation:
Given data:
Number of moles of silver = 0.89 mol
Number of molecules = ?
Solution:
Avogadro number:
The number 6.022 × 10²³ is called 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.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
Number of molecules of silver:
1 mole contain 6.022 × 10²³ molecules
0.89 mol × 6.022 × 10²³ molecules /1 mol
5.36 × 10²³ molecules
Imagine being barefoot outside on a hot summer's day in a sunny place ,would
you rather be standing on concrete or grass? Why?
Answers
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
A. Neutrons and electrons
B. Protons and electrons
C. Electrons in energy levels
D. Protons and neutrons
Answers
Answer:
D.
Explanation:
Because protons and neutrons make up the mass of an atom.
Question 3
True or False. You must convert grams to moles to do stoichiometry.
True
оо
D
False
Answers
Answer:
True
Explanation:
Sometimes you will need to convert from grams to moles, or moles to grams
Write the following in standard notation: 2.8 x 10-5s.
Answers
Answer:
2.8 X 10-5s in standard notation is 28-5s
Explanation:
Multiply 2.8 by 10
Given the following reaction, how many moles of iron(III)
oxide can be produced from 65.2 moles of iron?
4Fe + 302 → 2Fe2O3
Answers
32.6
Explanation;
The ratio of iron to iron oxide is 4:2, so you half the number of moles of iron to get the number of moles of iron oxide
How is agriculture depended on industries
Answers
Answer:
The interdependence of agriculture and industry helps the development of both the sectors. The most important aspect of this inter dependence is that the products of one serve as important inputs for the other. Growth of one sector, thus means ample supply of inputs for the other.
Explanation:
what does group 16 (oxygen family) have in common
Answers
Answer: here is your answer
Explanation:
The oxygen family consists of the elements that make up group 16 on the periodic table: oxygen, sulfur, selenium, tellurium, and polonium. These elements all have six electrons in their outermost energy level, accounting for some common chemical properties among them.
Answer:
they all have 6 valence electrons
Explanation:
all elements in group 16 have 6 valence electrons
If you used .010 moles of baking soda, what mass of carbon dioxide should be produced?
Answers
Answer:
d
Explanation:
What do the letters ESM stand for?
Answers
Answer:
European stability mechanism
Which statement best explains the net transfer of energy that is about to
happen in this photo?
A. The racket and the ball will both gain kinetic energy.
B. The ball will gain kinetic energy, and the racket will lose kinetic
energy
C. The racket will gain potential energy, and the ball will lose kinetic
energy
D. The racket and the ball will both lose potential energy
Answers
Answer:
Explanation:
B I got it right
Answer:
B. The ball will gain kinetic energy, and the racket will lose kinetic
energy
Explanation:
What are the three main parts of an atom and what are their charges?
Where are the electrons found in an atom?
Answers
Answer:
Three main parts are Protons (pos charge) Neutrons (no charge) Electrons (negative charge) and the electron is found on the outside of the nucleus
Explanation:
what is the magnitude of earthquake took place in manila?
A.5.2
B.5.3
C.5.4
D.5.5
Answers
Answer:
i believe its 5.2
Explanation:
The beakers in the picture above are labeled according to the ionic solutions they contain. What metal or metals could replace copper in the copper(II) nitrate solution?
Answers
Explanation:
When a metal replaces another metal in solution, we say such a reaction has undergone a single displacement reaction.
In such a reaction, metal higher up in the activity series replaces another one due to their position.
To known the metal or metals that will replace the given copper, we need to reference the activity series of metals.
Every metal higher than copper in the series will displace copper from the solution.
So, there metals are: potassium, sodium, lithium, barium, strontium etc.
the electrolyte in automobile lead storage batteries is a 3.75 sulfuric acid solution that has density of 1.230g/mL. calculate the mole fraction.
Answers
The mole fraction of sulfuric acid : 0.073
Further explanationGiven
3.75 M sulfuric acid solution that has density of 1.230 g/mL
Required
The mole fraction
Solution
3.75 M = 3.75 mol/L
For 1 L solution :
mass of solution = 1230 g
mass Sulfuric acid : 3.75 mol x 98 g/mol=367.5 g
mass water = 1230-367.5 = 862.5 g
mol water = 862.5 : 18 g/mol= 47.92
mol total = 3.75 + 47.92 = 51.67
mole fraction of sulfuric acid :
= 3.75 : 51.67
= 0.073
Over the past week, Anna has been very curt with shondra, and when she ask if she has done something to offend her, Anna tersely replies, "no, everything is fine" what should shondra do
Answers
Answer:
A. avoid talking to Anna altogether and stay out of her way
B. ask her manager for advice
C. check with Gary to see if there is any gossip about what's going on with Anna
D. take a curt approach of her own to show Anna how it feels
Explanation:
ANSWER: B.
How is the chemical bonding within a crystal of gold (Au) different from the
chemical bonding within a crystal of table salt (NaCl)?
Answers
Answer:
In the gold crystal, the atoms are bonded by freely moving electrons. In the salt crystal, the atoms are bonded by the attraction of opposite electrical charges.
Explanation:
A.pex
A crystal of Gold (Au) has metallic bonding whereas a crystal of NaCl has ionic bonding.
What is Chemical Bonding?Chemical bonding refers to the formation of a chemical bond between two or more atoms, molecules or ions to give rise to a chemical compound.
Ionic bonding occurs by transfer of electrons from one atom to another and is usually between a metal and a non metal atom. This type of bond is classically described as occurring when atoms interact with one another to either lose or gain electrons.
Metallic bonds are the chemical bonds that hold atoms together in metals.
Therefore, A crystal of Gold (Au) has metallic bonding whereas a crystal of NaCl has ionic bonding.
Learn more about Chemical Bonding, here:
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What is one bad thing that can happen when humans build more and more streets and buildings?
Answers
Answer:
there will be less and less space
Explanation:
Can someone plz help? Thanks so much!
An atom that contains 6 protons 6 neutrons and 6 electrons has a mass of approximately
1) 12 u
2) 12 g
3) 18 u
4) 18 g
Answers
Answer:
12 grams
Explanation:
Electrons do not contribute to mass. The proper unit to use is G
Name the following parts:
A—-
B——
C——
Answers
B—-Neutron
C—-Proton
Why is methanol more soluble in water than butanol
Answers
Answer:
Explanation: The longer the alkyl chain, the less soluble in water is the alcohol. Methanol and ethanol are infinitely miscible in water; propanol and butanol have limited solubility. ... Hydrogen bonding with water thus becomes less viable, and solubility of the long-chain alcohol IN WATER decreases.
Explanation:
Write your explanation on how plants
nake their own food?
imnortont bynroduct of
Answers
Answer:
photosynthesis are ligt water and carbon dioxide
Explanation:
Plants make their own food out of inorganic compounds through a process called photosynthesis that takes place in the leaves. The ingredients necessary for photosynthesis are light, water and carbon dioxide.
A process in which substances chemically rearrange to form new substances
Molecule
Energy
Organism
Chemical reaction
Matter
Cellular respiration
Answers
Answer:
Chemical reaction
Explanation:
After new substances are formed they can't be reversed to their original state.
_____ is the element from which iron is taken.
Carbon
Quartz
Hematite
Answers
Hematite is the element from which iron is taken.
Can someone help me on this please
Answers
Answer:
the answer for 5 is liquid
What particles are contained in the nucleus of an atom?
O electrons & protons
O neutrons & electrons
O neutrons & protons
O pixels & electrons
Answers
Answer:A
Why do we sometimes use roman numerals in naming ionic compounds?
Answers
We use roman numerals to indicate the oxidation state of metal atoms when naming compounds especially in the case of coordination compounds. It is a standard system of nomenclature.
What is oxidation state?Oxidation state of a species is the number electrons gained or lost. Oxidation state increases if electrons are lost from the atom and it will be decreased if electrons are gained.
For example, copper is in + 2 oxidation state in CuSO₄, thus it can be indicated as Cu(II). Copper can exists is +3 oxidation too. Thus the representation will be Cu (III).
All the transition metals like copper exhibit various oxidation state. So it is important to indicate in which oxidation state they are in a particular compound. In the compound Fe₂O₃, iron is in + oxidation state whereas in FeSO₄, it can be +2 . Thus it is important to note whether it is Fe (II) or Fe (III).
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pls help
20020200202
Answers
tell me what to do dudette
A compound was analyzed and found to contain the following percent composition: 2.056% hydrogen, 32.69% S, and 65.26% oxygen. Calculate the empirical formula.
Answers
Answer:
H2SO4
Explanation:
Firstly,
2.056% hydrogen = 2.056g of H
32.69% Sulphur = 32.69g of S
65.26% oxygen = 65.26g of O
Next, we convert each mass into moles by dividing by their respective molar mass:
H = 1, S = 32, O = 16
H = 2.056/1 = 2.056mol
S = 32.69/32 = 1.021mol
O = 65.26/16 = 4.078mol
Next, we divide each mole value by the smallest mole value (1.021)
H = 2.056/1.021 = 2.01
S = 1.021/1.021 = 1
O = 4.078/1.021 = 3.99
Approximately the ratio of H to S to O is 2:1:4, hence, the empirical formula for H, S and O is H2SO4.
The empirical formula of a chemical compound is the simplest whole-number ratio of atoms present in a compound
The correct answer of the following is [tex]H_2SO_4[/tex]
The data is given as follows:-
2.056% hydrogen = 2.056g of H 32.69% Sulphur = 32.69g of S65.26% oxygen = 65.26g of O
We have to find the moles in the reaction.
The mas of the element is as follows:-
H = 1S = 32O = 16
After solving the equation we get
[tex]H = \frac{2.056}{1} = 2.056mol\\\\S = \frac{32.69}{32} = 1.021mol\\\\O = \frac{65.26}{16} = 4.078mol[/tex]
Next, we divide each mole value by the smallest mole value (1.021)
[tex]H = \frac{2.056}{1.021} = 2.01\\\\S = \frac{1.021}{1.021} = 1\\\\O = \frac{4.078}{1.021} = 3.99[/tex]
The ratio of H to S to O is 2:1:4,
Hence, the empirical formula for H, S, and O is [tex]H_2SO_4.[/tex]
For more information, refer to the link:-
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