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OverLord2011 [107]

3 years ago

5

Will mark brainliest

1 answer:

ikadub [295]3 years ago

8 0

Answer:

a. Heterogeneous
b. Homogeneous
c. Homogeneous
d. Heterogeneous
e. Heterogeneous

Explanation:

A heterogeneous mixture is a mixture in which you can see multiple different ingredients in, for example vegetable soup, tea with ice and lemon slices, or fruit salad.

A homogeneous mixture is a mixture in which you can only see one thing, for example tea, seawater, or milk.

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Blank are atoms that carry an electric charge

vampirchik [111]

Ions. Im 99.9% sure haha.

8 0

3 years ago

A standard solution is prepared for the analysis of fluoxymesterone (c20h29fo3; 336 g/mol), an anabolic steroid. a stock solutio

-Dominant- [34]

<em>Answer:</em>

The concentration of new solution will be 1×10∧-7 M.

<em>Solution:</em>

<em>Data Given </em>

given mass of fluoxymesterone =16.8mg = 0.0168 g

molar mass of fluoxymesterone = 336g/mol

vol. of fluoxymesterone = 500.0 ml = 0.500 L

Stock Molarity of fluoxymesterone = (0.0168/336)÷0.500 = 1×10∧-4 M

So applying dilution formula

Stock Solution : New Solution

M1.V1 = M2.V2

( 1×10∧-4 M) × (1×10∧-6 L) = M2 × 0.001 L

[( 1×10∧-4) × (1×10∧-6)]÷[0.001] = M2

1 × 10∧-7 = M2

<em>Result:</em>

The concentration of new solution M2 will be 1 × 10∧-7

3 0

3 years ago

What is the wavelength of a 3 x 1012 Hz infrared wave?

Alenkasestr [34]

Answer:

D

Explanation:

wavelength = speed of light/ frequency

= (3 x 10^8 m/s) / (3 x 10^12 Hz)

= 1 x 10^-4 m

5 0

3 years ago

Draw Lewis structures for each of the following molecules. Show resonance structures, if they exist.

attashe74 [19]

Answer:

see the image

Explanation

3 0

3 years ago

Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be

lana66690 [7]

Answer: $P_4(l)+5O_2(g)+3H_2O(l)\rightarrow 2H_3PO_4(l)$

Explanation:

We are given two reactions which are the two steps of a mechanism:

$P_4(l)+5O_2(g)\rightarrow 2P_2O_5(g)$ ......(1)

$P_2O_5(g)+3H_2O(l)\rightarrow 2H_3PO_4(l)$ .......(2)

To determine the net chemical equation, we will multiply equation 2

$P_2O_5(g)+3H_2O(l)\rightarrow 2H_3PO_4(l)\times 2$

$2P_2O_5(g)+6H_2O(l)\rightarrow 4H_3PO_4(l)$ .......(3)

Adding (1) and (3)

$P_4(l)+5O_2(g)+3H_2O(l)\rightarrow 4H_3PO_4(l)$

Thus, the net balanced chemical equation is:

$P_4(l)+5O_2(g)+3H_2O(l)\rightarrow 4H_3PO_4(l)$

6 0

3 years ago