Answer:
The given equation is Balanced.
Explanation:
AlBr₃ + 3K → 3KBr + Al
The balanced equation consist of equal number of atoms of elements in reactant and product side.
The given equation is balanced because one aluminium, three bromine and three potassium atoms are present on both side of equation.
Answer:
Material D as its specific heat is the smallest.
Explanation:
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In this case, since the specific heat is defined as the energy required to increase (or decrease) 1 gram of a material by 1 °C, we can infer that the smaller the specific, the less energy is required for such temperature change, therefore, since material D needs 0.45 J of energy to increase the temperature of 1 g by 1 °C we can see that it will become the hottest as it has the smallest specific heat among the other ones.
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D. Baking cookies I hope that’s right
Insulators resists flow of electricity
Explanation:
We can summarize the reaction shown as:
2F₂ + I₂ → 2F₃I
Since I is purple
F is the green
The number of I atoms in the reactants is greater than the number in the product
False:
The number of I atoms on both side of the expression is 2
There are 4 atoms of F in both the reactants and the products.
False:
There are 4 atoms of F on the reactant side and 6 atoms of F on the product side
The illustration represents a valid chemical transformation. True or false
False
The reaction does not represent a valid chemical transformation because in a valid chemical transformation, the number of atoms on both sides of the expression must be the same.