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3 years ago

Table sugar and salt are examples of? A. mixtures B. elements C. atoms D. compounds

Chemistry

2 answers:

vivado [14]3 years ago

8 0

Answer:

The answer is compound because they consist of multiple things.

san4es73 [151]3 years ago

4 0

D, because the substance contains more than one element

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A chemist prepares a solution of aluminum sulfate Al2SO43 by weighing out 101.g of aluminum sulfate into a 200.mL volumetric fla

qaws [65]

Answer:

50.5 g/dL

Explanation:

From the question given above, the following data were obtained:

Mass of Al₂(SO₄)₃ = 101 g

Volume (V) = 200 mL

Concentration of solution (g/dL) =?

Next, we shall convert 200 mL to decilitre (dL).

This is illustrated below:

1 mL = 0.01 dL

Therefore,

200 mL = 200 mL / 1 mL × 0.01 dL

200 mL = 2 dL

Therefore, 200 mL is equivalent to 2 dL.

Finally, we shall determine the concentration of the solution in g/dL as follow:

Mass of Al₂(SO₄)₃ = 101 g

Volume (V) = 2 dL

Concentration of solution (g/dL) =?

Concentration of solution (g/dL) = mass /volume

Concentration of solution (g/dL) = 101/2

= 50.5 g/dL

Therefore, the concentration of the Al₂(SO₄)₃ solution is 50.5 g/dL

8 0

4 years ago

What is the mass percent of oxygen in Nickel (III) sulfate?

NeX [460]

The mass percent of oxygen in Nickel( $III$ )sulfate is $23.68$ percent.

At first, we look up the atomic masses for the element from the periodic table.

The atomic masses are found to be:

Ni is $58.7$
S is $32$
O is $16$

Next, we determine how many grams of each element are present in one mole of $Ni_{2}(SO_{4})_{3}$

$117.4g(2 mol*58.7)$ of Ni
$96g(3 mol*32)$ of S
$192g(12 mol * 16.00)$ of O

The mass of one mole $Ni_{2}(SO_{4})_{3}$ is:

$117.4g+96g+192g=405.4g$

So, The mass percent of oxygen $=(96g/405.4)*100=0.2368*100%\\$

$=23.68 %$ percent.

To learn more about Mass percent, refer to:

brainly.com/question/25255030

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2 years ago

What should be the effect of losing ones sight on the ability to digest food

crimeas [40]

One mechanism is enzyme induction.

Enzymes are proteins, which are metabolically expensive to produce. It makes evolutionary sense that your body makes less digestive enzymes such as lactase and sucrase when they're not needed. If your diet changes, your body can gradually increase the production of some enzymes through a process of enzyme induction.

For example, the production of lactase enzyme can be increased in some lactose-intolerant individuals by feeding them lactose . Also, studies in rats have shown that other carbohydrate-digesti<span>Your body makes more of what it needs, and less of what it doesn't need--brilliant!</span>ng enzymes, such as sucrase-isomaltase, trehalase, and maltase-glucoamylase--can be induced by hydrocortisone administration.

4 0

3 years ago

What does the rate of a reaction determine?

mafiozo [28]

Answer:

Reaction Rate is the measure of the change in concentration of the disappearance of reactants or the change in concentration of the appearance of products per unit time

6 0

3 years ago

Will mark as Brainliest.

rodikova [14]

The answer would be c

6 0

4 years ago