The last one ; box 1- Tt, 2= Tt, 3= Tt, 4=Tt,
<span>The choices are as follows:
h2o + 2o2 = h2o2
fe2o3 + 3h2 = 2fe + 3h2o
al + 3br2 = albr3
caco3 = </span><span>cao + co2
The correct answers would be the second and the last option. The equations that are correctly balanced are:
</span> fe2o3 + 3h2 = 2fe + 3h2o
caco3 = cao + co2
To balance, it should be that the number of atoms of each element in the reactant and the product side is equal.
The answer is the mass will change by 2 grams with the ballon on top
Search Results<span>Based on temperature changes, the Earth's atmosphere is divided into four layers, as shown in Figure 3. These layers are the troposphere, stratosphere, meso sphere, and thermosphere. Although these words might sound complicated, the name of each layer gives you clues about its features.</span>
The Kevlar jacket is only similar to the spiderweb in the arrangement of atoms in molecules of both substances.
<h3>Similarity between spiderweb and a Kevlar jacket</h3>
A spider web refers to the tiny web-like structures that is seen around places where spiders breed. On the other hand the Kevlar jacket is known for its high tensile strength.
The Kevlar jacket is only similar to the spiderweb in the arrangement of atoms in molecules of both substances.
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