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Katen [24]
3 years ago
9

What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?​

Chemistry
1 answer:
lapo4ka [179]3 years ago
3 0
What you were given is the balanced chemical equation
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What temperature kelvin would .97mol of gas be to occupy 26L at 751.2mmHg?
crimeas [40]

Answer: 322.56 Kelvin

Explanation:

Use the Ideal Gas Law

PV=nRT

R is the gas constant

T is the temperature in Kelvins

P is the pressure in atmospheres

V is the volume in liters

n is the number of moles of gas

First, the mm of mercury need to be converted to atmospheres using the conversion factor 1atm = 760 torr.

751.2mmHg (torr) =0.988atm

Now plug everything in

(0.988)(26)=(0.97)(0.0821)T\\T=322.56K

5 0
3 years ago
What are the tiny particles that make up protons and neutrons
love history [14]


Protons and neutrons are made up of tiny particles called quarks.

A proton is a baryon made up two Up and one Down  quark.

A neutron is made of two Down quarks and one Up quark.

The Up quarks possess a 2/3 positive charge  while the Down quark possess a 1/3 negative  charge.

When we refer that a proton consists of two Up quarks and a Down, this simply means that its net appearance matches this description.

It is thought that quarks themselves are surrounded by gluons. 

Gluons are the basic particles underlying the strong interaction between protons and neutrons in the nucleus.

7 0
4 years ago
90 grams of glucose, C6H12O6, is dissolved in 2 liters of solution. Determine the molarity (M).
Masja [62]

Answer:

0.25 M

Explanation:

The first step is to determine how many moles of glucose there are, which means first finding out the molar mass of glucose. Carbon has a molar mass of about 12, hydrogen 1, and oxygen 16, so the total molar mass of glucose is about 6(12)+12(1)+6(16)=180 grams. This means that 90 grams is half a mole. Half a mole of substance divided by two liters of solution is (1/2)/2=1/4, or a molarity of 0.25. Hope this helps!

7 0
4 years ago
The only way to observe a chemical property, is by reacting the substance with something else, which changes it into something n
lozanna [386]

Answer:

yes

Explanation:

pls mark me brainliest right

3 0
3 years ago
What best describes the advantage of using the model of a food web?
Illusion [34]

Answer:

Hello, Otaku Kun Here! >:3

Explanation:

What Best describes the advantage of using the model of a food web? 1. Shows feeding connections 2. Explains every detail of wildlife 3. Shows a complex mental model 4. Represents data collected from space

<em>hope this helps!</em>

<em>from: Otaku Kun! ^^</em>

8 0
3 years ago
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