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aivan3 [116]
3 years ago
15

Mina is attending cooking school, where she prepares different mixtures of ingredients. She works with both homogenous and heter

ogeneous mixtures. Today she is using honey and salsa. What kinds of mixtures are these ingredients?
Chemistry
1 answer:
rodikova [14]3 years ago
3 0

Answer:

Honey is an homogeneous mixture

Salsa is an heterogeneous mixture

Explanation:

Honey is a sweet uniformly colored liquid that can be of a dark variety or of clear golden color. Honey is made in nature by bees from flower nectar and is used as a food additive or sweetener

Honey is a homogeneous mixture because the concentration of the components of honey are uniformly distributed throughout the mixture. Every portion has the same concentration of components

Salsa is a sauce made by mixing chopped tomatoes, onions, chilies, lime juice and seasoning and therefore consists of both solid and liquid components mixed in varying proportion such that part will have continuous  that comes in between different types of solid and no two parts have exactly the same composition

Therefore, salsa is an heterogenous liquid.

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Mg + 2HCl → MgCl2 + H2
deff fn [24]

Answer:

Explanation:

This is a limiting reactant problem.

Mg(s)

+

2HCl(aq)

→

MgCl

2

(

aq

)

+ H

2

(

g

)

Determine Moles of Magnesium

Divide the given mass of magnesium by its molar mass (atomic weight on periodic table in g/mol).

4.86

g Mg

×

1

mol Mg

24.3050

g Mg

=

0.200 mol Mg

Determine Moles of 2M Hydrochloric Acid

Convert

100 cm

3

to

100 mL

and then to

0.1 L

.

1 dm

3

=

1 L

Convert

2.00 mol/dm

3

to

2.00 mol/L

Multiply

0.1

L

times

2.00 mol/L

.

100

cm

3

×

1

mL

1

cm

3

×

1

L

1000

mL

=

0.1 L HCl

2.00 mol/dm

3

=

2.00 mol/L

0.1

L

×

2.00

mol

1

L

=

0.200 mol HCl

Multiply the moles of each reactant times the appropriate mole ratio from the balanced equation. Then multiply times the molar mass of hydrogen gas,

2.01588 g/mol

0.200

mol Mg

×

1

mol H

2

1

mol Mg

×

2.01588

g H

2

1

mol H

2

=

0.403 g H

2

0.200

mol HCl

×

1

mol H

2

2

mol HCl

×

2.01588

g H

2

1

mol H

2

=

0.202 g H

2

The limiting reactant is

HCl

, which will produce

0.202 g H

2

under the stated conditions.

pls mark as brainliest ans

7 0
2 years ago
Read 2 more answers
What is the formula of water and what are the two ions that it is made of?
ahrayia [7]
H20. 2 of hydrogen and oxygen
6 0
2 years ago
I don’t get it<br> How do you solve the problems
pogonyaev
It would be D, 90.0 g
5 0
3 years ago
How did the discovery of isotopes help to lead to a revised model of atomic structure?
Arte-miy333 [17]
Dalton postulated that atoms of the same elements had the same mass while atoms of different elements had different masses. 

The discovery of isotopes revealed that atoms of the same element did not necessarily have same masses, they could have different masses.

Therefore, the modern periodic table that we use nowadays contains the average atomic mass of all the isotopes found for a given element.
8 0
3 years ago
Calculate the mass of iron(III) oxide that contains a million iron atoms. Be sure your answer has a unit symbol if necessary, an
KiRa [710]

<u>Answer:</u> The mass of iron (II) oxide that contains a million iron atoms is 2.6\times 10^{-17}g

<u>Explanation:</u>

We are given:

Number of iron atoms = A million = 1.0\times 10^6

The chemical formula of the given compound is Fe_2O_3

It is formed by the combination of 2 iron atoms and 3 oxygen atoms.

According to mole concept:

1 mole of a compound contains 6.022\times 10^{23} number of particles

1 mole of iron (II) oxide will contain = (2\times 6.022\times 10^{23})=1.2044\times 10^{24} number of iron atoms

We know that:

Molar mass of iron (II) oxide = 159.7 g/mol

Applying unitary method:

For 1.2044\times 10^{24} number of iron atoms, the mass of iron (II) oxide is 159.7 g

So, for 1.0\times 10^6 number of iron atoms, the mass of iron (II) oxide will be \frac{159.7}{1.2044\times 10^{24}}\times 1.0\times 10^6=2.6\times 10^{-17}g

Hence, the mass of iron (II) oxide that contains a million iron atoms is 2.6\times 10^{-17}g

8 0
3 years ago
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