Answer:
Explanation:
First we find the Molecular weight of CaCl2
looking at the periodic table the MW of Ca is 40.078 and Cl is 35.453 and the ratio of ca to cl is 1:2 so we multiply cl by 2 which is 35.453*2=70.906
we add them together: 40.078 + 70.906 = 110.984 g/mol
now:
* 3.45 mol
the mol cancels out and we left with 3.45 * 110.984 grams = 382.89 grams
Answer:
Particle arrangement of solids: close tightly packing.
Particle arrangement of liquids: close together with no regulations and more vibration movements than in solids.
Movement of particle in gases is freely and very fast, independent from other particles.
Forces between particles in liquids are attractive forces, but not as strong as in solid state, because they have greater energy of movement and vibration then the particle in solid state.
There are no forces between particles in gaseous state, except if they are close enough, then they repel each other.
We can't compress particle in solid and liquid state, but we could in gaseous state.
Shape and volume of group of particle in gaseous state are definite.
Gas has indefinite shape and volume.
Explanation:
Answer:
The explanation that the researcher can give for the fact that the color of the leaves of both plants has not changed is that receive the same radiation from the sun
.
Explanation:
<u>English</u>:
A researcher observes two plants of the same species, but with different adaptations. Plants A have green leaves, very deep roots with very dense hairs. Plants B, on the other hand, have very shallow roots, the density of their villi is less dense, although the colour of the leaves is the same. What explanation can the researcher give for the fact that the colour of the leaves of both plants has not changed?
Option for this question:
- <em>Receive the same amount of water
.</em>
- <em>Receive the same radiation from the sun
.</em>
- <em>Receive the same amount of oxygen
.</em>
- <em>Receive the same amount of carbon dioxide.</em>
The coloration of leaves in plants depends on the interaction of sunlight with photosynthetic pigments, such as chlorophyll, found in their leaves.
From the idea that both plants are of the same species, it can be inferred that both have the same composition of photosynthetic pigments in their leaves, the amount of sunlight they receive being the factor that makes them have the same coloration, without changes.
The adaptations they possess and which differentiate them are the roots, which are responsible for the absorption of water and nutrients from the soil, which does not influence the color of the leaves.
Learn more:
Photosynthesis in a leaf brainly.com/question/7269482
Number 2 is the mass of an electron
Toothpaste contains abrasive particles that can polish off tarnish. These same particles can scratch silver up as well, so be careful!
