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Soloha48 [4]
3 years ago
8

Is salt an element, a compound, a homogenous mixture, or heterogeneous mixture?

Chemistry
1 answer:
sp2606 [1]3 years ago
4 0
Salt is a compound.
Most salts are ionic compounds, meaning that they are made up of ions rather than molecules.
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1. empirical formula for Cu2o4?
Wittaler [7]

We know that

1) empirical formula of a compound is the representation of a molecules with the elements in simplest mole ratio.

2) the molar mass is the actual proportion of moles of elements present in a molecule

3) there is a simple ratio between the molar mass and empirical mass a molecule

Now let us solve each problem

1) empirical formula of Cu_{2}O_{4} will be CuO_{2}

2) empirical formula of Zn_{3}(NO_{3})_{4} will be Zn_{3}(NO_{3})_{4}

3) empirical formula of Ti_{2}S_{2.5} will be Ti_{4}S_{5}

4) the molecular formula will be :

Ratio=\frac{molarmass}{empiricalformula}=\frac{112.04}{28.01}=4

the molecular formula = 4 X empirical formula = 4 X CO = C_{4}O_{4}

5) the mole ratio of Cl and Cr is \frac{1.90}{0.631}=3

empirical formula will be CrCl_{3}

6 0
3 years ago
Which list shows the phases of matter in order from the greatest average kinetic energy to the least average kinetic energy per
avanturin [10]

Answer:

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Explanation:

3 0
3 years ago
Choose the incorrect answer below concerning absolute zero.
Nataly [62]
Is equal to 0 k .This is because an absolute zero temperature is the temperature in which nothing can be cooled. The standard measurment for temperature is celcius which is already 0 but when we are converting 0 K to celcius we will gwt 273 celcius which is definitely not an absolute zero
8 0
3 years ago
Read 2 more answers
If the density of a metal bar is 3.47 g/mL and volume is 30 mL, calculate the mass of the metal bar in grams (g). Show the steps
Hitman42 [59]

Answer:

m=104.1g

Explanation:

Hello,

In this case, considering that the density is considered as the quotient of the mass and volume:

\rho =\frac{m}{V}

We can easily compute the mass by solving for it as follows:

m=V*\rho =30 mL*3.47g/mL\\\\m=104.1g

Best regards.

7 0
3 years ago
Obtain a box of breakfast cereal and read the list of ingredients. What are four chemicals from the list? a. monoglycerides b. c
GREYUIT [131]

Answer:

B. cocamide DEA

C. folic acid

D. iron

G. lauryl glucoside

5 0
3 years ago
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