Answers
Related Questions
What is the average speed of a cheetah that runs 9 km in 10 minutes?
Answers
Answer:
0.9m/s
hope it helps....
why is the
equilibrium state considered dynamic ?
Answers
Answer:
Dynamic equilibrium only occurs in reversible reactions, and it's when the rate of the forward reaction is equal to the rate of the reverse reaction. These equations are dynamic because the forward and reverse reactions are still occurring, but the two rates are equal and unchanging, so they're also at equilibrium.
Answer:
By IdowShadow the cool man
Explanation:
Dynamic equilibrium only occurs in reversible reactions, and it's when the rate of the forward reaction is equal to the rate of the reverse reaction. These equations are dynamic because the forward and reverse reactions are still occurring, but the two rates are equal and unchanging, so they're also at equilibrium
Limestone CaCo3 decomposes to lime according to the equation below
CaCo3 ----> CaO + CO2
(i) balance the equation above
(ii) what mass of limestone would produce 11.2 grams of lime?
Show your working
Answers
Answer:
Mass of lime produced = 19.0 g
Explanation:
Given data:
Mass of lime produced = 11.2 g
Mass of limestone react = ?
Solution:
Chemical equation:
CaCO₃ → CaO + CO₂
Balanced chemical equation:
CaCO₃ → CaO + CO₂
Number of moles of lime:
Number of moles = mass / molar mass
Molar mass of lime 56.1 g/mol
Number of moles = 11.2 g/ 56.1 g/mol
Number of moles = 0.19 mol
Now we will compare the moles of CaO and CaCO₃ from balance chemical equation.
CaO : CaCO₃
1 : 1
0.19 : 0.19
Mass of limestone react:
Mass = number of moles × molar mass
Mass = 0.19 mol × 100.1 g/mol
Mass = 19.0 g
Which element, Sulfur or Chlorine, would have the higher first ionization energy?
Answers
Answer:
Chlorine
Explanation:
Answer:
Chlorine
Explanation:
The first Ionization energy for sodium is one and one-half times larger than the electron affinity for Chlorine. Thus, it takes more energy to remove an electron from a neutral sodium atom than is given off when the electron is picked up by a neutral chlorins atom.
what compound would form when magnesium and nitrogen combine
Answers
Answer:
magnesium nitride
Explanation:
Which of the following is a unit of distance? JUst know im not dum nor slow.....just know.
min
miles/hr
hr
km
Answers
Answer:
km
Explanation:
Answer:
miles yryryeyeueheueueueueueyeyeyeyey
Jackson enjoys looking up at the night sky and writing about the variety of objects he see , on one special occasion he wrote in his journey that he saw a streak of light going across part of the sky . Which answer best describes what Jackson saw ?
a - Meteorite: A cold mixture of dust and ice that develops a long tail as it nears the sun
b - Meteor: A cold mixture of dust and ice that develops a long tail as it nears the sun
c - Meteorite: A streak of light made when an object burns up as it enters earth’s atmosphere
d - Meteor: A streak of light made when an object burns up as it enters earth’s atmosphere
Answers
Answer:
d - Meteor: A streak of light made when an object burns up as it enters earth’s atmosphere
Explanation:
The best description of what Jackson saw is a meteor which is a streak of light made when an object burns up as it enters earth's atmosphere.
A meteor is made up of rocky and sometime iron mass. They are believed to have formed since the early formation of the earth.
These objects moves with very high velocity in the solar system. When they enter the earth's atmosphere, they are burnt up and they leave a streak of light in the atmosphere. This is what is seen as a shooting starwhat is the formulaa for H2O
Answers
Answer:
:)
Explanation:
Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds.
Answer:
H2O
Explanation:
Thats the formula :P