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marin [14]
3 years ago
8

Which combination of subatomic particles would produce a positive ion? 10 electrons and 10 protons 10 protons and 9 neutrons 10

protons and 11 electrons 10 protons and 9 electrons
Chemistry
2 answers:
kenny6666 [7]3 years ago
5 0
Hello,

Your answer would be <span>10 electrons and 10 protons.

This is your answer because when both electrons and proton's combine with the same value of electron and proton's, they both become the same and the are both equaled.

Hope this helps

HotTwizzlers</span>
puteri [66]3 years ago
4 0
Hello,

Your brainliest answer would be:

10 electrons and 10 protons

Plz mark me brainliest
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Crystal structures with ions must have ____________.a. a positive chargeb. a negative chargec. electrical neutralityd. a 2+ char
Inessa05 [86]

Answer:

c. electrical neutrality.

Explanation:

A <em>crystalline  solid</em><em> possesses a rigid and long-range order; its atoms, molecules, or ions occupy  specific positions.</em> The arrangement of such particles in a crystalline solid is such that  the net attractive intermolecular forces are at their maximum.

Ionic crystals, particularly, have two important characteristics:

(1) They are composed of charged species.

(2) Anions and cations are generally quite different in size.

The forces holding the atoms together are electrostatic attractions. Examples of these types of crystals include NaCl, LiF, MgO, CaCO₃.

<u>Since they are composed of anions and cations, in stoichiometric amount, they are to be said electrically neutral.</u>

8 0
3 years ago
The equation that describes the change in temperature of a solvent due to a solute is AT6 = i xKb x molality. How much salt woul
dedylja [7]

4.9 moles of salt are required to be added to 1 kg water to change the boiling temperature

by 5°C.

<h3>What is the moles of Salt required to change the temperature of water by 5°C?</h3>

Based on the given equation, the molality of the solution is calculated as follows:

  • Molality = change in temperature/ Kb × I

Change in temperature = 5 °C

Kb = 0.51

i = 2

Molality = 5/0.51 × 2 = 4.9 molal

Also, Molality = moles/kg of water

Moles of salt = molality × kg of water

Moles of salt = 4.9 × 1 = 4.9 moles.

Therefore, 4.9 moles of salt are required to be added to 1 kg water to change the boiling temperature

by 5°C.

Learn more about molality at: brainly.com/question/9149034

#SPJ1

7 0
2 years ago
A chemist can determine the mass of K in a sample of known mass that consists of either pure K2O or pure K2O2. From this informa
Arte-miy333 [17]

Yes , the chemist can answer if the compound in K2O or K2O2

The chemical formula and composition of both the compounds is entirely different. The compound K2O2 has an additional molecule of oxygen than K2O and hence will have have higher molecular mass.

In the compound K2O

molecular mass= 2x 39+16 =94

mass ratio of K in compound= 78/94 = 0.830

In the compound K2O2

molecular mass= 2x 39+16X2 =110

mass ratio of K in compound= 78/110 = 0.710

and hence by the required ratio while extracting K , the chemist may know if the compound is K20 or K2O2

If the ratio is anything different from 0.830 and 0.710 then the compund will be something different

#SPJ9

5 0
2 years ago
What is a mixture of hot gasses and volcanic material that moves at highspeeds
Nadya [2.5K]

I'm pretty sure the answer is Pyroclastic flow

8 0
3 years ago
The reaction for the formation of phosgene from carbon monoxide and chlorineCO + Cl2 --&gt; COCl2 is first order in CO and secon
Ilya [14]

Answer:

r = k . [CO] .[Cl_{2}]

Explanation:

Let´s consider the following reaction:

CO + Cl₂ ⇒ COCl₂

The general rate law is:

r = k . [CO]^{m}. [Cl_{2}]^{n}

where,

r is the rate of the reaction

k is the rate constant

[CO] and [Cl₂] are the molar concentrations of each reactant

m and n are the reaction orders for each reactant

Since the reaction is first order in CO, m = 1. The overall order is the sum of all the individual orders. In this case, the overall order m + n = 2. Then,

m + n = 2

n = 2 - m = 2 - 1 = 1

The reaction is first order in Cl₂.

The rate law is:

r = k . [CO]. [Cl_{2}]

6 0
4 years ago
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