Answers
Related Questions
What do elements and compounds have in common? And how do they differ?
I will mark brainliest for the best answer.
WARNING: DON'T PUT LINKS I WILL REPORT YOU!
Answers
Most of the world’s energy comes from what three sources?
These energy sources are called ______________fuels and they are _____________________ resources.
Answers
Answers:
Most of the world’s energy comes from what three sources?
Oil, coal, and gas.
These energy sources are called fossil fuels and they are non-renewable resources.
Fuel type: oil
How it's formed: from the remains of ancient marine organisms
Its uses: transportation, industrial power, heating and lighting, lubricants, petrochemical industry, and use of by-products
Fule type: coal
How it's formed: when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial
Its uses: electricity generation, metal production, cement production, chemical production, gasification, and other industrial uses
Fuel type: gas
How it's formed: decomposed organic matter mixed with mud, silt, and sand on the seafloor
Its uses: heating & cooling buildings, cooking foods, fueling vehicles, and electricity generation
Question
What is the name of the covalent compound with the formula P2N3?
Answers
Answer:
P2N5
Explanation:
you have to plus it 2 times
Write the formula for Zn+2 (SO4)-2
Answers
Answer:
Zn2 + SO4 = Zn2(SO4)2
Explanation:
how might using water somethimes require changing its original state?
Answers
Balance C12H22011 → C + H2
Answers
Answer:
What is this?
Explanation:
1. Why is the timing of tides predictable?
A. because winds are predictable
B. because the moon’s path is predictable
C. because ocean water density is predictable
D. because the sun’s movements are predictable
Answers
Answer:
Because the moon's path is predictable
Explanation:
The moon affects the tides
Vinegar is added to baking soda and bubbles of carbon dioxide rapidly form. A cloudy liquid is left behind. What are products in this chemical reaction?
Answers
Answer:
When baking soda reacts with vinegar, one of the products produced is the gas carbon dioxide.
Answer:
The product left behind is carbon dioxide.
PLEASE HELP ME NO LINKS
Answers
Answer: I don’t think the answer is A or C. Maybe B.
The word chemosynthesis means
the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.
Explanation:
How does viscosity affect boiling point?
A. Higher viscosity = Lower boiling point
B. Lower viscosity = Higher boiling point
C. Higher viscosity = Higher boiling point
D. Viscosity has no effect on boiling point
Answers
Which observation is true about the result of mixing kernel corn and oil?
A. The kernel dissolved in the oil.
B. The kernel corn floated above the oil
C. The kernel corn did not dissolve completely.
D. The kernel corn settled down at the bottom of the glass.
Answers
Answer:
A.The kernel dissolved in the oil.
How are organisms classified as Eukarya different from organisms classified as Archaea and Bacteria?
A)They are all multicellular.
B)They all produce their own food.
C) They all reproduce sexually.
D) They all have membrane-bound nuclei
Answers
Answer: D
Explanation: The Eukarya differ from the Archea and Bacteria in that their cells are eukaryotic, meaning they contain a membrane enclosed nucleus and other membrane enclosed organelles.
Eukarya is different from organisms classified as Archaea and Bacteria because Eukarya have membrane-bound nuclei. Therefore, option (D) is correct.
How does the classification of Eukarya differ from Archaea?The type of cell of the organism can be classified into three domains. First is the bacteria which have no nucleus present in cells. Then Archaea have no nucleus in the cells but they have a different cell wall than bacteria. Then Eukarya have a nucleus in them.
The domains of Archaea and Bacteria are both composed entirely of small, single-celled organisms but they also have differences. All are composed of prokaryotic cells, which are nucleus-less cells. T
All the cells in the Eukarya domain contain their genetic material or DNA within the nucleus. Four classes make up the Eukarya domain: Plantae, Fungi, Animalia, and Protista.
Therefore, the domain of the Eukarya is different from organisms classified as Archaea and Bacteria as Eukarya have membrane-bound nuclei.
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How is activation energy represented on an energy diagram?
Energy
Reactants
Products
Reaction Progress
O A. Activation energy is the distance from the reactants to the top of
the "hill."
B. Activation energy is the distance from the top of the "hill to the
products.
O C. Activation energy is the final energy level of the product
molecules.
o
D. Activation energy is the starting energy level of the reactant
molecules.
Answers
In accordance with the diagram, activation energy is the distance from the reactants to the top of the "hill"
The activation energy represented on the energy diagram is as given as
"Activation energy is the distance from the reactant to the top of the hill"
So, the correct option is A.
What is activation energy?The minimum amount of energy required by the reactant to do the reaction is called activation energy.
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how many ml of 12.0 m hcl are needed to prepare 1200 ml of a 0.10 M solution of hcl
Answers
Your strategy here will be to use the molarity and volume of the diluted solution to determine how many
This means that if you know how many moles of solute you have in the target solution, you also know how many moles of solute were present in the stock solution sample.
Use the molarity and volume of the target solution to determine how many moles of hydrochloric acid,
HCl
, you need in that solution
c
=
n
V
⇒
n
=
c
⋅
V
n
HCl
=
0.10 M
⋅
500
⋅
10
−
3
L
=
0.050 moles HCl
Now the question is - what volume of stock solution would contain this many moles of hydrochloric acid?
c
=
n
V
⇒
V
=
n
c
V
stock
=
0.050
moles
12
moles
L
=
0.0041667 L
I'll leave the answer rounded to two sig figs, despite the fact that you only gave one sig fig for the volume of the target solution
V
stock
=
4.2 mL.follow me
Which are characteristics of all metals?
A
They are malleable, ductile, and conduct electricity.
B
They are malleable, ductile, and form ionic bonds.
C
They are ductile, inert, and conduct electricity.
D
They are noble, ductile, and form ionic bonds.
Answers
Answer:
A. They are malleable, ductile, and conduct electricity.
Explanation:
Answer:
a
Explanation:
Help me plss correct answer
Answers
Answer:
The answer is for your question is A
Which of the following is an indicator that a chemical reaction occurred?
A precipitate is formed
The state of matter changed
It was melted
The identity of the substance did not change
Answers
Answer:
the state of matter changed
Explanation:
Answer:
A) A precipitate is formed
Explanation:
occurs in aqueous solution when two ions bond together to form an insoluble salt, which is known as the precipitate.
An object traveling around another object space is in blank
Answers
Answer: An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like Earth or the moon. Many planets have moons that orbit them
HOPE THIS HELPS
Explain why most inorganic substances do not burn, yet organic substances will
burn.
Answers
Most inorganic substances do not burn because they do to contain carbon. Organic substances do contain carbon.
The characteristics of metallic bonds fit nicley into a predictable pattern. True or False?
Answers
Answer:
True
Explanation:
DON'T GIVE BRAINLIEST TO THE FILE EXPLOITER!!!!
The amount of a solid substance that dissolves in a gas or in a liquid is affected by all of the following
except:
A- the nature of the substance
B- the temperature
C- the pressure
D- Stirring (Agitation)
Answers
Answer:
C. The Pressure
Explanation:
Pressure only affects the solubility of gases. It barely affects the solubility of solids and liquids.
The shark and remora have a relationship that benefits the remora but neither helps nor harms the shark. What type of relationship is this?
commensalism
or
predation
or
mutualism
or
parasitism
Answers
Answer:
commensalism
Explanation:
It's not parasitism as the shark is not harmed in the relationship
Gravitational potential energy depends on the
Answers
Answer:
Gravitational potential energy depends on an object's weight and its height above the ground (GPE = weight x height).Explanation:
Consider the following balanced equation:
2KCIO3(s) → 2KCl(s) + 302(g)
How many moles of O2 will be obtained by decomposing
3.50 moles of KCIO3?
0.530 mole
O 3.00 moles
O 2.30 moles
5.25 moles
Answers
5.25 moles
General Formulas and Concepts:Chemistry
Atomic Structure
CompoundsMolesAqueous Solutions
States of matterStoichiometry
Analyzing reactions RxNUsing Dimensional AnalysisExplanation:Step 1: Define
[RxN - Balanced] 2KClO₃ (s) → 2KCl (s) + 3O₂ (g)
[Given] 3.50 mol KClO₃
[Solve] mol O₂
Step 2: Identify Conversions
[RxN] 2 mol KClO₃ (s) → 3 mol O₂ (g)
Step 3: Stoichiometry
[DA] Set up conversion: [tex]\displaystyle 3.50 \ mol \ KClO_3(\frac{3 \ mol \ O_2}{2 \ mol \ KClO_3})[/tex][DA} Multiply [Cancel out units]: [tex]\displaystyle 5.25 \ mol \ O_2[/tex]What happens to the amount of carbon dioxide as the population increases?
Answers
Answer:
when population increases the amount of carbon dioxide also increases as population use oxygen and release carbon dioxide
Carbon dioxide is a major greenhouse gas. The increase in the population increases the carbon dioxide amount.
What is the relation between carbon and population?The main product released from the respiratory process of organisms, especially animals is carbon dioxide. The increase in their population will increase this product.
The increased population will increase the demand for the burning of fossil fuel, pollution, and respiration, and hence the product of these activities, carbon dioxide will increase in the atmosphere.
Therefore, the carbon dioxide will increase with an increase in the population.
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A 1.00 L volume of gas at 35.0 °C exerts a pressure of 85.5 kPa. What will the pressure
be at 127 °C? Assume constant volume.
Answers
Answer:
111.03kPa = P₂
Explanation:
Gay Lussac's Law states that the pressure of a gas is directly proportional to the absolute temperature when volume remains constant.
The equation is:
P₁T₂ = P₂T₁
Where P is pressure and T absolute temperature of 1, initial state and 2, final state of the gas.
P₁ = 85.5kPa
T₂ = 127°C + 273.15 = 400.15K
P₂ = ?
T₁ = 35°C + 273.15 = 308.15K
P₁T₂ = P₂T₁
85.5kPa*400.15K = P₂*308.15K
111.03kPa = P₂Use the food web below to answer the following
question.
Frog
Red fox
Grasshopper
Weasel
Goldfinch
Great horned om
Clover
Deer mouse
Which group is not represerted in the food web?
A. producers
B. primary consumers
C. secondary consumers
D. decomposers
Answers
Answer:
uhm i believe its D hope i helped
Explanation:
Answer:
D. decomposers
how many grams is 3.49 moles NaCl
Answers
Answer:
m = 204.16 grams
Explanation:
Given that,
No. of moles, n = 3.49
Molar mass of NaCl, M = 58.5 g/mol
We need to find the mass of 3.49 moles NaCl. We know that,
[tex]n=\dfrac{m}{M}\\\\m=n\times M\\\\m=3.49 \times 58.5\\\\m=204.16\ g[/tex]
So, there are 204.16 grams in 3.49 moles NaCl.
How many molecules are contained in 125 grams of oxygen
gas (O2)?
Answers
Answer:
i think its 62.50 :) hope this helped you out
what is an magnetic pole
Answers
Answer:
Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.