Answer:
How to write steam in chemical equations???
Chemical equations are symbolic descriptions of chemical reactions wherein the reactants and the products are represented in terms of their respective chemical equations. They often include the use of symbols to represent variables including the path of the reaction and the physical responses of the reacting entities.
The equation in which the number of atoms of all the molecules is equal on both sides of the equation is known as a balanced chemical equation.
Answer:
<u>3.39 grams </u>of AgNo3 are required to make 25 ml of .80M solution
Explanation:
Molarity , M = 0.80
Volume = 25 ml
V = 0.025 L
Here n = number of moles
n = 0.02 mole
Molar mass of AgNO3 = 169.87 g/mol
Mass = 3.397 g
Answer:
The atomic mass number is the number of protons and neutrons in an atom.
Answer:
Increase in the concentration of the reactants (vinegar and baking soda) leads to an increase in the rate of reaction (more volume of CO2 is evolved within a shorter time)
Explanation:
The chemical reaction between baking soda and vinegar in water is shown in the chemical reaction equation below;
NaHCO3(aq) + CH3COOH(aq) ----->CO2(g) + H2O(l) + CH3COONa(aq)
The chemical name of baking soda is sodium bicarbonate (NaHCO3) while vineager is a dilute acetic acid (CH3COOH) solution. This reaction provides a very easy set up in which we can study the effect of concentration on the rate of chemical reaction.
We must have it behind our minds that increase in the concentration of reactant species increases the rate of chemical reaction. Secondly, the rate of the reaction between baking soda and vinegar can be monitored by observing the volume of CO2 evolved and how quickly it evolves from the reaction mixture.
We can now postulate a hypothesis which states that; 'increase in the concentration of the reactants (vinegar and baking soda) leads to an increase in the rate of reaction (more volume of CO2 is evolved within a shorter time).'
If we go ahead to subject this hypothesis to experimental test, it will be confirmed to be true because a greater volume of CO2 will be evolved within a shorter time as the concentration of the reactants increases.
Answer:
D. Up-Down
Explanation:
Hoped this helped you <\3
