Answer:
1.51
⋅
10
24
Explanation:
This is a pretty straightforward example of how to sue Avogadro's number to figure out the number of molecules present in a given sample.
In your case, the sample is said to contain
2.50
moles of water. Now, a mole is simply a very, very large collection of molecules. In order to have
1
mole of a molecular compound you need your sample to contain
6.022
⋅
10
23
molecules of that compound.
plz give my a brainylist
The water molecules are in a block of ice containing 0.750 mole of water. The number of water molecule is 4.52 x 10²³molecules.
What are molecules?Molecules are defined as a group of two or more atoms that together create the lowest recognizable unit into which a pure material can be separated while retaining its makeup and chemical qualities.
It can also be defined as a group of two or more atoms held together by attractive forces called as chemical bonds.
There are mainly three types of molecule.
Molecules of an atomMolecules of an compoundMolecules of an element1 mole of water molecules = 6.022 x 10²³ molecules
So, 0.750 mole of molecules = 6.022 x 10²³ x 0.750
= 4.52 x 10²³ molecules
Thus, the water molecules are in a block of ice containing 0.750 mole of water. The number of water molecule is 4.52 x 10²³molecules.
To learn more about molecule, refer to the link below:
https://brainly.com/question/19922822
#SPJ2
What is true about ionic compounds?
Select all that apply.
A. Properties of the compound are different than the properties of individual atoms that make the compound.
B. Electrons are not involved in the formation of an ionic bond, since ions do not have valence electrons.
C. Electrons are not free to move.
D. They may have a positive or negative charge.
which element would have properties most like arsenic (As)? Te Ge P Se
Answer:
P
Explanation:
A ball initially at rest is dropped from a window sill 14.2 m off the ground. Find the velocity of the ball the moment it hits the ground. Round your answer to 2 decimals places.
Answer:
16.68 m/s
Explanation:
The following data were obtained from the question:
Height (h) = 14.2 m
Initial Velocity (u) = 0 m/s
Final velocity (v) =?
Thus, the velocity (v) with which the ball hit the ground can be obtained as follow:
v² = u² + 2gh
NOTE: the acceleration due to gravity (g) = 9.8 m/s²
v² = u² + 2gh
v² = 0² + 2 × 9.8 × 14.2
v² = 0 + 278.32
v² = 278.32
Take the square root of both side
v = √278.32
v = 16.68 m/s
Therefore, the velocity with which the ball hit the ground is 16.68 m/s
Someone please help me I got a few minutes
Answer:
30 feet /second
Explanation:
60 feet/ 2 sec = 30 feet/sec
Answer:
30 feet/sec
Explanation:
Average speed = distance / time (distance divided by time)
Average speed = 60 feet / 2 seconds
Average speed = 30 feet/sec
So the anverage speed is 30 feet per second
HOPE IT HELPED
10 uses of water good answer
Answer:
For drinking.
For cleaning dishes.
For cooking.
for watering plants.
for washing clothes.
for bathing.
for generation of hydroelectricity.
for washing car.
making our dog bath
it helps in maintaining osmotic rate in humans
Explanation:
Hope this helps u
Crown me as brainliest
Answer:
drinking,washing clothes ,washing dishes ,cooking,watering plants,cleaning ,for generation of hydroelectricity,washing vehicles,aquatic life,bathing
Explanation:
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