(D) Decreasing the particle size of the CacO, by grinding it into a fine powder
Explanation:
To produce more gases by increasing the rate of the chemical reaction, if we grind the chalk into powder, this should walk.
The rate at which chemical reactions takes place is a measure of the speed of the reaction.
Some factors control the rate of chemical reactions. They are:
- Nature of reactants
- Concentration of reactants or pressure if gaseous.
- Temperature
- Presence of a catalyst
- Sunlight
The most applicable in this scenario is grinding the chalk into fine powder. This process increases the surface area exposed. Surface area exposed proportionally affects the rate of a reaction.
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Surface area brainly.com/question/9666705
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According
picture I find on internet (http://prntscr.com/gel41e<span>) answers are:
A - 1. Carbon dioxide is converted
to sugar used for food.
G - 2. Carbon trapped in fossil fuels is converted to carbon dioxide.
E - 3. Organic carbon is converted to
fossil fuels.
H - 4. Carbon dioxide is converted
to carbonates.
F - 5. Sugar is broken down and converted
to carbon dioxide.</span>
<span>2) No, chemical energy is transfered into mechanical energy in cars for example, where combustion of gasoline moves turbines.</span>
3) Yes, this process is called photosynthesis. Solar energy is stored in chemical bonds.
4) Arrow C- combustion of organic matter and release of CO2 and arrow F is respiration (oxygen turns into carbon dioxide.
<span>5) Question 9: For example arrow E represent process of cycle carbon from organic dead organism to nonorganic carbon.</span>
6) Question 10: Arrows B and C because carbon from goes from inorganic to organic matter and his mass remains the same on Earth.
C: One plate is going underneath the other plate and sinking into the soft rock below.
Explanation:
Where plates are moving towards each other they are said to converging, and are called convergent margins.
The lithosphere is broken into series of slabs called plates. The plates moves on the weak and relatively soft asthenosphere below.
Plates have different motion. At some places, they move apart and they are said to be divergent.
When plates moves towards each other, they are convergent. At a convergent margin, a plate collides with another thereby causing the denser plate usually the oceanic plate to subduct into the asthenosphere. In some other cases, the plates can collide and build upward.
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Lithosphere brainly.com/question/9582362
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The ans is 4.76 ×10^24
Steps :
7.90×6.02×10^23
Things that float or sink
