The compound HCI is an example of a (n)
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Related Questions
In a chemical compound, would you expect an oxide ion to be joined with one atom of calcium or one atom of potassium? Why?
Energy transfer by convection is primarily restricted toA. gases. B. liquids. C. solids. D. fluids. E. none of the above
What mass of anhydrous solute is needed to prepare 500 mL of 0.032 M NaF(aq)? Answer in units of g.
The specific heat of a solution is 4.18 J/(g•°C)and its density is 1.02 g/mL. The solution is formed by combining 25.0 mL of solution A with 25.0 mL of solution B with each solution initially at 21.4°C. The final temperature of the combined solution is 25.3°C. Calculate the heat of reaction, q, assuming no heat loss due to the calorimeter. I got 831 JThe part I cannot figure out is the question afterwards which is If the calorimeter has a heat capacity of 8.20 J/°C and a correction is included to account for the heat absorbed by the calorimeter what is the heat of reaction q
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The molar mass is different from "mass"; 1 mole of NaOH is equal to 40.0g/mol.
When the question asks, what is the mass? It is referring to how many grams there are.
First, we are going to convert the molecules to atoms using Avogadro's number (=6.02 x 10^23)
(2.50 x 10^22 molecules) x (6.02 x 10^23 atoms) = 0.042 mol
Next, we are going to convert from moles to grams.
0.042 mol of NaOH x 40.0 g of NaOH/1 mole = 1.68g of NaOH.
There are 1.68 grams in 2.50 x 10^22 molecules of NaOH.
Hello!
What is the mass of 2.50 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)?
Data:
Molar Mass of NaOH = 40 g/mol
Solving: According to the Law Avogradro, we have in 1 mole of a substance, 6.02x10²³ atoms/mol or molecules
1 mol -------------------- 6.02*10²³ molecules
y mol -------------------- 2.50*10²² molecules
Product of extremes equals product of means
Solving: Find the mass value now
40 g ----------------- 1 mol of NaOH
x g ------------- 0.042 mol of NaOH
Answer:
The mass is 1.68 grams
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I Hope this helps, greetings ... Dexteright02! =)
Na2CO3 + Ca(OH)2 --> 2NaOH + CaCO3
Now I know how to do equations like this, just a bit confused on how to use my conversion factors.
Do I need to use the 3.0 Molarity in this equation or can I just use Molar Volume of a gas (22.4L/1 mole)?
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You would have to use the molarity of calcium hydroxide to find the moles of calcium hydroxide. Once you have moles, just convert using mole:mole ratio and find the grams of sodium hydroxide.
A. lon charges are written as superscripts with the names of the
atoms.
B. Roman numerals are used instead of prefixes to indicate number.
C. Subscripts are used in the name to indicate number of atoms.
D. Ions combine in only one ratio.
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Prefixes are not used to indicate the number of atoms when writing the chemical formula. The number of atoms are written as subscripts to their chemical symbols.
What is chemical formula?
Chemical formula of a compound is used to identify a compound and distinguishes it from other compounds. A chemical formula is written from the chemical symbols of elements which constitute the compound.
The number of atoms of each element is written as the subscripts of the symbols for each atoms. For example,magnesium chloride contains one magnesium and two chlorine atoms thus, its formula is MgCl₂.
The subscripts for each atom in the formula of an ionic compound is the charge of the other atom into which it is bonded. Similarly, the formula of iron oxide containing 2 Fe and 3 O is written as Fe₂O₃.
To find more on chemical formula, refer here:
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Answer:
Ions combine into only one ratio
Explanation:
Just took test
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Answer : Option B) Attempt to control the conditions.
Explanation : While conducting an experiment, a scientist should always attempt to control the reaction conditions.
If the reaction conditions are not controlled one can lose the expected result or observation that was supposed to be generated from the experiment. Like controlling the given temperature, pressure, addition of catalysts, etc. If these conditions are overlooked one may not achieve the expected results and will not reach to the conclusion.
metamorphic
extrusive
sedimentary
igneous
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Answer:
granoblastic metamorphic rock
Explanation:
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*try drawing their structural formula, from there you'll be able to differentiate better*