Sr(s) + F₂(g) → SrF₂(s)
Sr(s) + F₂(g) → SrF₂(s)
Solid Strontium reacts with Fluorine gas in a synthesis reaction to form Strontium Fluoride. The balanced chemical equation is Sr (s) + F2 (g) -> SrF2 (s).
The reaction of solid strontium (Sr) with fluorine gas (F2) is a synthesis reaction, and it forms strontium fluoride (SrF2). The balanced chemical equation for this reaction is:
Sr (s) + F2 (g) → SrF2 (s)
In this equation, 's' stands for solid, 'g' stands for gas, and the arrow ( → ) indicates the direction of the reaction from reactants to products.
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Answer:
BrO₃⁻ (aq) + NO₂(aq) + 4 H⁺→ Br⁻(aq) + NO₃⁻ + 2 H₂O
Explanation:
The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.
Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts.
The coefficients located in front of each molecule indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.
By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.
Then, taking into account all of the above, you can determine the amount of elements on each side of the equation:
Left side: 1 Br, 5 O and 1 N
Right side: 1 Br, 3 O and 1 N
If the reaction occurs in an acidic medium:
So, balancing the oxygen:
BrO₃⁻ (aq) + NO₂(aq) → Br⁻(aq) + NO₃⁻ + 2 H₂O
Left side: 1 Br, 5 O and 1 N
Right side: 1 Br, 5 O, 1 N and 4 H
Then, balancing the hydrogens:
BrO₃⁻ (aq) + NO₂(aq) + 4 H⁺→ Br⁻(aq) + NO₃⁻ + 2 H₂O
Left side: 1 Br, 5 O, 1 N and 4 H
Right side: 1 Br, 5 O, 1 N and 4 H
You can see that you have the same amount on each side of the reaction. So the reaction is balanced.
B. zinc, gold, aluminium, oxygen.
C. nitrogen, copper, mercury, water.
D. Chlorine, argon, sodium, limestone.
A list that contains only element is option B which include zinc, gold, aluminum, and oxygen.
A chemical element may be defined as a type of simple substance that significantly cannot be broken down or fragmented into smaller parts or changed into another substance.
The basic part of an element is an atom, which contains subatomic particles like protons, neutrons, and electrons. All atoms of an element have the same number of protons. In list A, the air is not an element, in list C, water is not an element, in list D, limestone is not an element. While list B includes all elements like zinc, gold, aluminum, and oxygen.
Therefore, a list that contains only elements is option B which includes zinc, gold, aluminum, and oxygen.
To learn more about Chemical elements, refer to the link:
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The given quantity of any substance is an important aspect of it merging with other substances. The smaller the particles the less is the surface area exposure.
Thus smaller particles have less surface area.
Learn more about the smaller and have generally dissolve faster.
brainly.ph/question/11958399.
Answer:
For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.
Answer:
chemical to heat energy
Explanation:
Answer:
The forest will become very dry and things that need water will die
Do high pressure systems prefer forming in Ecuador compared to in Springdale?
Are thunderstorms in Ecuador as scary as thunderstorms in Springdale?
Are average yearly temperatures in Ecuador greater than in Springdale?
The only testable question from the options provided would be asking if the average yearly temperatures in Ecuador are greater than those in Springdale. This question allows for a factual comparison using data.
When comparing climates, we must focus on quantitative, measurable aspects. So, the testable question here most appropriate for Sam's inquiry would be: Are average yearly temperatures in Ecuador greater than in Springdale?. This question relies on measurable, empirical data related to the large scale weather patterns of two distinct geographic locations. It will allow a factual analysis of the differences in climate between Springdale and Ecuador, specifically in terms of average yearly temperatures.
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