What is the gram-formula mass of (NH4)3PO4?(1) 112g/mol (2) 121g/mol (3) 149g/mol (4) 242g/mol
Answers
149g/mol is the gram-formula mass of (NH)
PO
. Therefore, the correct option is option C.
The quantity of a compound which has the exact same mass in grammes that its formula mass in an atomic mass unit is said to have the compound's gramme formula mass. Each atom of every component has a distinctive mass, and every molecular unit of a compound possesses a distinctive mass determined by the complex's formula. It is referred to as the Gramme Formula Mass because the formula-determined mass of a substance that is ionic is calculated by adding the atomic masses of each of its constituents. Gram-formula mass of (NH)
PO
= (14+4)×3+31+16×4= 149g/mol
Therefore, the correct option is option C.
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A person pushes horizontally with a force of 220. N on a 56.0 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.21. (a) What is the magnitude of the frictional force? (b) What is the magnitude of the crate's acceleration?
The ________ is the balance of the amount of carbon in each reservoir.a. global nitrogen budget b. global carbon budget c. global oxygen budget d. global respiration budget
Rainforests are principally responsible for global oxygen turnover true or false
Answers
This is due to the difference in density. The rock is denser than the leaf. And also, the rock is denser than the liquid in the pond. If the material is denser than the other material, it will sink. The same holds true for the rock, it sinks. But when the material is less dense than the other material, it floats. And it holds true for the leaf, it floats.
Answers
Based on the given model of ammonia, three covalent bonds are represented.
• A bond, which is formed by sharing pair of electrons is known as the covalent bond. The covalent bonds result in the formation of giant structures or molecules.
• There are different ways of demonstrating small covalent molecules, that is, by structural formulae, dot and cross diagrams, and three-dimensional structures.
• The given diagram shows the three-dimensional structure of ammonia. In this, one atom of nitrogen is forming covalent bonds with three hydrogen atoms.
• The formation of covalent bonds takes place as a result of electron pairs sharing between the atoms to attain stability.
Thus, an ammonia molecule exhibits three covalent bonds.
To know more about:
Answers
The factor label method (dimensional analysis) is a method used to solve problems by the given amount and value. Eightbuses can carry 32,000 basketballs.
What is dimensional analysis?
Dimensional analysis has been also called the unit factor method used to convert the various units and quantities by mathematical computation and equation formation. It can convert the fundamental and derived units.
Given,
1 bus = 12 cars
3 cars = 1 truck
1 truck = 1000 basketballs
If 3 cars have been equal to 1 truck then, 12 cars will be equal to X trucks
Solving for X as:
X = (12 cars × 1 truck) ÷ 3 cars
= 4 trucks
Hence, 4 trucks are equal to 12 cars.
Now, from above it can be said that 1 bus has been equal to 4 trucks.
So, if one bus = 4000 basketballs
8 bus = X basketballs
Solving for X:
X = 4000 × 8
= 32000 basketballs
Therefore, eight buses can contain 32000 basketballs.
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1 truck = 3 cars
4 trucks= 12 cars
1 bus = 4 trucks
1 bus = 4000 basketballs
8 buses= 32,000 basketballs
Answers
Answer:
The Answer is ELEMENT
Explanation:
use less nonrenewable resources.
B
use more nonrenewable resources.
с
drive cars that only burn fossil fuels.
D
use less dangerous ways to find oil.
Answers
One way to slow down the global climate change is to reduce the use of nonrenewable sources such as fossil fuels because, they release harmful gases that leads to global warming.
What is global warming?
The increase in the overall atmospheric temperature is called global warming. Global warming is mainly caused by green house gases such as carbon dioxide, methane, oxides of nitrogen etc.
Green house gases intensely absorbs heat energy that radiates out from earth. Thus they trap the temperature in the atmosphere make the planet warmer.
Nonrenewable energy sources such as nuclear reactions, fossil fuels, coal etc. coal and petroleum are highly rich in toxic gases and burning them releases these gases including carbon dioxide and methane to the atmosphere increase the rate of global warming.
Therefore, reducing the use of nonrenewable resources is a good way to slow down the global climate change.
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Because it will slow down global climate change