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Elanso [62]
3 years ago
5

Ions in a certain volume of 0.20MNaCl(aq) are represented in the box above on the left. In the box above on the right, draw a pa

rticulate diagram that represents the ions in the same volume of 0.10MCaCl2

Chemistry
2 answers:
jonny [76]3 years ago
8 0

Answer:

Four Ca²⁺ and eight Cl⁻ ions.  

Explanation:

If

0.20 mol·L⁻¹ NaCl =  8Na⁺ + 8Cl⁻

Then

0.10 mol·L⁻¹ NaCl =  4Na⁺ + 4Cl⁻

And

0.10 mol·L⁻¹ CaCl₂ = 4Ca²⁺ + 8Cl⁻

The square will contain 4 Ca²⁺ ions and 8 Cl⁻ ions.

It should resemble the diagram below

Diano4ka-milaya [45]3 years ago
5 0

Answer:

Explanation:

Find attached solution

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What is the difference between soluble and insoluble
klemol [59]

Soluble means it can be dissolved

Insoluble means it can't be dissolved

5 0
3 years ago
giving the incomplete equation 2N2O5 (g) which set of products completes and balances the incomplete equarion
a_sh-v [17]

Answer:

The complete question is as follows

Given the incomplete equation: 2 N2O5(g) ==>  Which set of products completes and balances the incomplete equation?

A)2 N2(g) + 3 H2(g)

B)2 N2(g) + 2 O2(g)

C)4 NO2(g) + O2(g)

D)4 NO(g) + SO2(g)

The correct option is C) 4NO2(g) + O2(g)

Explanation:

Note that the products should be NO2 and O2 since the reactant is entirely made up of N and O. option A is not correct as hydrogen cannot emerge as a product in this reaction. Matter can never be created or be destroyed bu can only change in a chemical reaction. Option D is not also correct for the same reason.

Option B is not correct since it did not balance the number of atoms of O and N in the reactant side of the equation.

The option C) 4NO2(g) + O2(g) is therefore the right option since it balances both the elements and the number of atoms of the elements present.

7 0
3 years ago
Please help me vote you brainiest
bekas [8.4K]

Explanation:

An object in motion <u>stays</u> <u>at</u> motion An object <u>at</u> <u>rest</u> stays at rest unless acted by an <u>external</u> force.

[ Newton's 1st law of motion ]

6 0
3 years ago
A block of iron has a mass of 150 g and a volume of 20 ml. What is the density of iron? *
shtirl [24]

Answer:

<h3>The answer is 7.50 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass of iron = 150 g

volume = 20 mL

We have

density =  \frac{150}{20}  =  \frac{15}{2}  \\

We have the final answer as

<h3>7.50 g/mL</h3>

Hope this helps you

4 0
3 years ago
Read 2 more answers
a student determined that 8.2 milligrams of oxygen is dissolved in a 1000 gram sample of water at 15 degrees Celsius and 1 atm w
melamori03 [73]

Answer: We do not know. We have not been given the solubility of oxygen in water at a given temperature nor have we been given the Henry's laws constant. We also do not know whether you mean 1 atmosphere of air, or 1 atmosphere of oxygen.

8 0
3 years ago
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