Answer:
12 cm³
Explanation:
Always round to the place of the number with the least amount of significant figures.
1.74 and 3.09 have three significant figures. 2.3 has two significant figures. Therefore, the answer will be rounded to two significant figures.
1.74 cm × 2.3 cm × 3.09 cm = 12.36618 -> 12 cm³
(The 3 in the tenths place is less than 5 so drop it and all the numbers to the right of it.)
Hope that helps.
4NH₃(g) + 3O₂(g) ⇄ 2N₂(g) + 6H₂O(g) is the balanced equation.
<h3>What is balanced equation?</h3>
If both the reactants and the products have the same number of atoms and total charge in each component of the equation, the equation describing the chemical reaction is said to be balanced. In other words, the mass and charge in the reaction are equal on both sides.
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, where the reactant entities are given on the left and the product entities on the right, with a plus sign between the entities in both the reactants and the products and an arrow that points towards the products, showing the direction of the reaction.
To learn more about balanced equation from the given link:
brainly.com/question/28297774
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Answer:
anaphase
Explanation:
because the chromosomes are moving towards different poles
The correct answer would be C. The third option shows a correct balanced chemical reaction. In order to say a reaction is balanced, it should be that the atoms of each element in the reactant side and the product side would be equal in number.
Using the Ideal gas law: PV = nRT, where P = pressure, V = volume, n = no. of moles, R= universal gas constant, T = temperature.
Given, n = 0.500 moles, T = 301 K, R=0.0821 L•atm/mol•K, V = 2.5 L
Substituting the given values in the Ideal gas equation:
P = nRT/V = (0.500 mol x 0.0821 L•atm/mol•K x 301 K) / 2.5 L = 4.94 atm
The pressure of carbon dioxide gas = 4.94 atm
