The answer for the following answer is mentioned below.
- Therefore the mass of calcium nitrate (
Explanation:
To find the mass of calcium nitrate ( ) is :
No of calcium are 1
No of nitrogen are 2
No of oxygen are 6
= 
So therefore;
No of nitrogen are 2
No of oxygen are 6
Mass of ( ) :
molecular mass of calcium =40
molecular mass of nitrogen = 14
molecular mass of oxygen = 16
= (14×2) + (16×6)
= 28 + 96
= 124
= 40 + 124
<u><em></em></u><u><em> = 164 grams</em></u>
Therefore the mass of calcium nitrate ( ) is 164 grams
So, litmus paper is a qualitative tool for assessing the acidity or basicity of a substance (usually a solution). In general, blue litmus turns red in the presence of an acid, and red litmus turns blue in the presence of a base. They can't really tell you much more than that.
The solutions that are most likely acids are those that turn blue litmus red <em>and </em>do not evoke a color change in red litmus. A solution that turns red litmus blue <em>or </em>does not evoke a color change in blue litmus is likely not an acid. Using these criteria, solutions 4 and 7 are most likely acids since they both turn blue litmus red (and they cause no color change in red litmus).
The correct answer choice would thus be D.
The volume of 0.240 m sulfuric acid necessary to react completely with 66.9 g sodium hydroxide is 6.<u>96 L</u>
Concentration is the abundance of a constituent divided by way of the overall volume of an aggregate. several sorts of mathematical descriptions may be outstanding: mass concentration, molar concentration, variety concentration, and extent awareness.
Calculation:-
Concentration = 0.24 M
mass = 66.9 g
The molar mass of Sodium Hydroxide is = NaOH
= 40g
mole = mass/molar mass
= 66.9/40
= 1.67 mole
C = moles/volume
Volume = moles/ concentration
= 1.67/0.24
= 6.<u>96 L</u>
The concentration of a substance is the quantity of solute found in a given amount of solution. Concentrations are normally expressed in terms of molarity, defined because of the variety of moles of solute in 1 L of answer.
The Concentration of an answer is a measure of the quantity of solute that has been dissolved in a given amount of solvent or answer. A concentrated answer is one that has a rather huge quantity of dissolved solute.
Learn more about concentration here:-brainly.com/question/26255204
#SPJ1
_Mg + _HCL = _MgCl2 + H2
Separate the terms on each side:
_Mg + _HCl = _MgCl2 + H2
Mg- 1 Mg-1
H-1 H-2
Cl-1 Cl-2
Mg is balanced on both sides so move on to the next (put a 1 in the space).
1Mg
There are two H's and two Cl's on the results side, so to balance the equation put a 2 as a coefficient for HCl and it'll all balance out.
2HCl
Balamced equation will be:
1Mg + 2HCL = 1MgCl2 + H2
Idk it’s there’s a picture(it won’t load or no picture) but when molecules move slow and are kidna packed together it is a solid
