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When a certain solid dissolves in water the solution becomes cool Is ΔHsoln for this solute positive or negative?
Wiki User
∙ 11y ago
Positive, because as the solution forms, heat is absorbed.
This answer was correct on WileyPlus
Wiki User
∙ 11y ago
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What would be the overall charge in any IV solution. Why?
Because any solution have equal number of positive and negative ions, thus becomes neutral.
When a very electronegative element like oxygen is bonded to hydrogen is?
the hydrogen atom becomes partially positive, the electronegative atom becomes partially negative
How does a positive ion become a neutral atom?
It can be positive or negative depending on if the atom loses or gains an electron. If it gains an electron it becomes negative and if it loses an electron it becomes positive.
Is litiuim a neagative ion?
No. If lithium loses an electron, it becomes a positive ion, not negative ion.
Compare and contrast the possession of electrons in ionic and covalent bonds?
In an ionic bond, one atom loses electrons( becomes more positive) and the other gains the electrons ( becomes more negative) what keeps them bonded is the now positive/negative attraction. In covalent bonding, both atoms share the electrons, but are again held together by positive/negative attraction.
What happens to a solution when a metal dissolves in water?
the solution becomes basic
How do you get a chemical solution?
When one compound dissolves into another compound, it becomes a solution.
When salt dissolves in water it is said to be?
it becomes a solution and it dissolves into the water so you cant see it.
When three negative are multiplied is the product positive or negative?
It is a positive. When you multiply a negative and a negative, it becomes a positive, then you multipy the positive with the other positive
When salt dissolves in water it's said to be?
it becomes a solution and it dissolves into the water so you cant see it.
How do you add a negative by a negative?
you make it a positive because negative add negative becomes a positive
What happens when its a negative times positive?
Becomes a negative.
If your positive and negative number are the same does it become a negative number or positive number?
It depends on what you are doing to the two identical numbers. If you are multiplying them, it becomes a negative. If you are dividing them, it becomes a negative. If you are adding them, it will always be zero (e.g., 2+ -2 = 0, etc.). There are two ways to subtract. If you are subtracting a positive from a negative, the number remains negative. If you are subtracting a negative from a positive, or a negative from a negative, the negative becomes a positive and you just add from there.
Why is it when you multiply two negative integers that it is a positive answer?
Multiplying anything non-zero by a negative number changes the sign. A positive number multiplied by a negative number becomes negative. A negative number multiplied by a negative number becomes positive.
What is the solution for -5x10?
First, multiply 5 and 10 and you get 50. Then since one number is positive and the other is negative, the answer becomes negative. The easiest way to remember this is this chart: + +=+ - -= + -+=- +-=-
If you multiply a negative by a negative is it a positive?
Yes, any time you multiply a negative by a negative, it automatically becomes a positive.
Why when ions gain it becomes negative and when ion loses it becomes positive?
Electrons are negatively charged. When an atom gains an electron it gains this negative charge, and so it becomes negative. When it loses it again it has lost that negative charge and becomes more positive.
