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3 years ago

Will Give Brainliest!

Chemistry

2 answers:

Amanda [17]3 years ago

7 0

mass is very wrong i soully believe its magnetism

Lorico [155]3 years ago

5 0

Answer: The correct answer is Magnetism.

Explanation: We are given two samples of iron fillings.

Magnetism: This property remains same for any sample of same element.

Mass: We are given different mass. So, they cannot be same.

Shape: Iron fillings cannot have a definite shape.

Volume: As the density of any element remains same always. As the mass is different, so to have the same density, the volume of two sample will also be different.

Hence, magnetism is the only property that will remain same for the two samples.

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How many moles are in 175L of SO2 gas at STP

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12 moles are in the 175L of SO2 gas at STP

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3 years ago

Complete the table to summarize the properties of the different subatomic particles. Type in your answers.

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<h2>Complete the table to summarize the properties of the different subatomic particles. </h2>

Explanation:

Atom

It is a smallest particle which cant exist independently.

According To Dalton, atom was indivisible but later on, it was proved that atom can be subdivided into sub atomic particles called electron, proton & neutron.

These subatomic particles have marked properties .

Proton

It was discovered by E.Goldstein .
It is positively charged particle
It is present in nucleus .
Its mass is equal to 1.6726219 × 10⁻²⁷ kilograms

Neutron

It was discovered by E.chadwick .
It is neutral
It is present inside the nucleus .
It's mass is equal to 1.674927471×10⁻²⁷ kg

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It has negative charge .
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3 years ago

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Answer:

The deaths of one species leaves room for another to grow. for example is there are not enough wolves to kill the deer the deer population will increase and that would start to cause problems. If there is not enough algae to combat the moon jelly the amount of moon jelly will increase because there is nothing to stop it.

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3 years ago

What is the chemical name of C9F7

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Answer:

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Explanation:

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3 years ago

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Select any of the following combinations which would make a good buffer solution?

KengaRu [80]

Answer:

b. 0.05 M H₂CO₃ + 0.05 M KHCO₃

d. 0.1M HCN + 0.2M NaCN

g. 0.2M NH₃ + 0.1M NH₄Br

Explanation:

A buffer solution consists of the following components:

A weak acid and its conjugate base.
A weak base and its conjugate acid.

Which would make a good buffer solution?

a. 0.3 M HC₂H₃0₂ + 0.1 M HCI

It does not have the components of a buffer solution. HCl is a strong acid.

b. 0.05 M H₂CO₃ + 0.05 M KHCO₃

It is a good buffer because it has a weak acid (H₂CO₃) and its conjugate base (HCO₃⁻), which comes from the salt.

c. 0.05 M KC₂H₃O₂

It does not have the components of a buffer solution.

d. 0.1M HCN + 0.2M NaCN

It is a good buffer because it has a weak acid (HCN) and its conjugate base (CN⁻), which comes from the salt.

e. 0.2M NaF + 0.2M NaOH

It does not have the components of a buffer solution. NaOH is a strong base.

f. 0.3M NH₄Cl

It does not have the components of a buffer solution.

g. 0.2M NH₃ + 0.1M NH₄Br

It is a good buffer because it has a weak base (NH₃) and its conjugate acid (NH₄⁺), which comes from the salt.

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3 years ago