Answers
Single Disp. ~ AgNO3 + Cu —> CuNO3 + Ag
Double Disp ~ Pb(NO3)2(aq) + 2KI(aq) -> 2KNO3(aq) + PbI2(s)
Combustion ~ CH4 + O2 —> CO2 + 2H2O
Synthesis ~ 2Mg + O2 —> 2MgO
Related Questions
The sound of a trumpet ECHOES off a nearby mountain. This is which type of wave interaction?
Answers
Answer:
reflection
Explanation:
wave reflection is when a sound bounces off something it cannot go through, like echoing
In a water molecule, what type of bond forms between the oxygen and hydrogen atoms
Answers
(I attached a picture that could help)
-Hope that helps,
Good luck!
Mars is red due to red soil rich in iron oxide (rust). Is the oxidation of soil to rust a PHYSICAL or CHEMICAL change How do you know?
Answers
How many moles of gas would occupy 22.4 L at 273K in one arm?
Answers
Answer:
1 mol
Explanation:
Using the general gas law equation as follows:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
According to the provided information in the question;
V = 22.4L
T = 273K
P = 1 atm
R = 0.0821 Latm/molK
n = ?
Using PV = nRT
n = PV/RT
n = (1 × 22.4) ÷ (0.0821 × 273)
n = 22.4 ÷ 22.4
n = 1mol
Which process occurs when sand particles settle out of the water or
wind and are deposited as sediment?
A. cementation B. photosynthesis
C. deposition
Answers
If I have 38g of MgCl2, how many moles do I have?
Answers
Answer:
0.3991
Explanation:
no. of moles = mass/molar mass.so lets get the molar mass of MgCl2
(Mg=24.305 and Cl=35.453) so the molar mass of MgCl2= 24.305+(2*35.453)
molar mass of MgCl2= 95.211
now lets get the no of moles:no of moles=38g/95.211=0.3991
substances that are made of particles and that move in a random motion I need this nowww!!!!
Answers
Answer:
ANY KENITIC PARTICLE
Particles in both liquids and gases collectively called fluids
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Select the most likely product for this reaction:
Upper K subscript 2 upper C upper O subscript 3 (a q) plus upper C upper O subscript 2 (g) right arrow question mark.
K2CO3(aq) + H2O(l)
K(s) + H2(g) + O2(g)
K(s) + CO3(g) + H2
Answers
Answer:
The answer is A- K2CO3(aq)+H2O(I)
Explanation:
The person who made this question gave the answer so...eh??
Answer:
A) K2CO3(aq) + H2O(l)
Explanation:
OMG PLEASE HELP ME :(
Answers
Answer:
D) The gravity on the moon is one sixth the gravity of Earth.
Explanation:
what is gold on the periodic table of element
Answers
Answer:
Gold is element 79 and its symbol is Au.
Calculate the number of Oxygen atoms in Imole of 02
Answers
Answer:
two oxygen atoms
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
Explanation:
Cells are made of many parts, or , that help the cell do its job. Each cell organelle has a specific function, or
Answers
Answer:
Organelles; role.
Explanation:
A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life. A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells. Generally, cells have the ability to independently replicate themselves. In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles. Some examples of cell organelles with their respective functions in all living organisms such as trees, birds, and bacteria include;
1. Nucleus : it controls all the activities taking place in the cell and the synthesis of proteins.
2. Mitochondria : it provides all the energy required in the cell by transforming energy forms.
3. Lysosomes : they are responsible for absorbing materials and breaking the materials taken in by the cells.
4. Chromosomes : they give sets of instructions for the synthesis of products.
5. Ribosomes : they are involved in the build up of proteins.
6. Endoplasmic Reticulum : this is where the ribosomes perform their tasks.
7. Cytoskeleton : they help to maintain and support the shape of the cells.
8. Vesicles : they ensure proteins are properly transported to the right and exact location.
9. Golgi apparatus : it prepares the protein for export by chemically tagging them.
10. Cell membrane : is the wall of the cell and typically controls what leaves and enters the cell.
Hence, cells are made of many parts, or organelles, that help the cell do its job. Each cell organelle has a specific function, or role.
what is nucular decay
Answers
Answer:
Nuclear decay is also called radioactive decay, and it occurs in a series of sequential reactions until a stable nucleus is reached. Nuclear reactions release much more energy—orders of magnitude more—than exothermic chemical reactions.
Explanation:
Identify the reactant(s) in the chemical reaction, CO2 + H20 --> H2CO3. *
A. CO2, H20, and H2CO3
B. CO2 and H20
C. H2CO3
Answers
Answer:
The correct answer is B. From the chemical reaction, the reactants are carbon dioxide and water. Reactants are the substances that take part in the chemical reaction which, as a result, produces new substances called the products
Explanation:
Hope it helps
if a magnet is broken which one of the following remains unchanged in each part mass, magnetisation, length
Answers
Explanation:
magnetization
coz it will still have two pols that is north and south pole
What atoms in water are attracted to Chlorine?
Answers
Answer: hydrogen and oxygen
Explanation:
What is the difference between hurricanes,typhoons,and tropical cyclones?
Answers
the one main difference between a hurricane and a typhoon is the specific location where the storm takes place!!
typhoons and hurricanes can reach sustained winds of an averaging 74 mph.
The maximum water vapor that air can hold at 30°C is about 30 grams/cubic meter. If the humidity of the air is currently 6 grams/cubic meter at the same temperature, the relative humidity is
Answers
A cell is placed in a salt solution that has the same concentration as the inside of the cell. What will happen to the cell?
A) The cell will contract.
B) The cell will expand slightly.
C) The cell will burst.
D) The cell will remain the same size.
Answers
Answer:
d
Explanation:
6. What type of energy is the result of water and hot matter interacting?
Answers
Boiling water on a stove is an example of thermal energy. Thermal energy is produced when the atoms and molecules in a substance vibrate faster due to a rise in temperature.
Western regions Facts
Answers
Alaska's land area is much bigger than any other state, but it has one of the lowest populations.
The western US takes up about half of the land of the United States.
The western United States is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term the West changed. Before about 1800, the crest of the Appalachian Mountains was seen as the western frontier.
Hope this helps :)
Have a great day!
How many Carbon atoms are shown in the reactants? How many C atoms are shown in the products?
Answers
Answer:
Q) How many Carbon atoms are shown in the reactants
Ans) The reactants have one carbon atom
Q) How many C atoms are shown in the products?
Ans) there is one atom on the product side
Which is the best example of plant tissue?
A:
B:
C:
D:
(Please look at the pictures to answer if its wrong I may have a chance to fail please be nice and help)
Answers
Explanation:
all are a good example of plant tissue but from my side I think it is B.
your well-wisher
What do you understand by a chemical reaction
Answers
Answer:
A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
A child drops a ball from a bridge. The ball strikes the water under the bridge 2.0s later. What is the velocity of the ball when it hits the water
Answers
Answer:
20m/s
Explanation:
Given that :
Time, t = 2 seconds
Using the relation :
v = u + at
a = g is positive (downward)
V = final velocity
u = initial velocity = 0
v = u + gt
v = 0 + 10(2)
v = 20 m/s
Which of the following elements has the lowest ionization energy?
Question options:
A)
Hydrogen
B)
Beryllium
C)
Argon
D)
Helium
Answers
Answer:
A
Explanation:
It has the lowest ionisation energy
Answer:
Beryllium
Explanation:
Please help fast. I will give brainliest!
Answers
Answer:
c=-1+x=varible+a=(5)^3
Explanation:
facts
What is the frequency when the Energy is equal to 4.18 x 10-22 ?|
Answers
Answer:
6.31x10¹¹s⁻¹ = Frequency
Explanation:
To convert frequency to energy or vice versa we must use the equation:
e = h*f
Where e is energy in joules (4.18x10⁻²²J)
h is Planck's constant (6.626x10⁻³⁴Js)
Replacing:
4.18x10⁻²²J = 6.626x10⁻³⁴Js*f
6.31x10¹¹s⁻¹ = Frequencytrue or false : Color Changes are used to show reaction completion
Answers
Answer:
True
Explanation:
It means the reaction is occuring.
what would be necessary to change a liquid to a gas
Answers
Answer:
latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure.
Explanation: