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Illusion [34]
3 years ago
12

3x+9y+5x+7-9y fully Simplify ​

Chemistry
2 answers:
il63 [147K]3 years ago
4 0

Answer:

pliz mark brainliest

8x+7

Explanation:

NeX [460]3 years ago
3 0

Answer:

the answer is attached to the picture

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Fruit salad is an example of what? compound homogeneous mixture element heterogeneous mixture
salantis [7]
The answer is homogeneous mixture
3 0
4 years ago
The solubility of substance (Z) is 40g/100ml of water at 25°C. A)Can you
anyanavicka [17]

Answer:

No, It would be a unsaturated solution

Explanation:

The solubility of a compound gives us information about how a compound may dissolve or not in a determinate solvent.

In this case we have Z, which in 25 °C the solubility of this compound is 40g/100 mL water. This means that if we have 60 g of Z and try to dissolve it in 100 mL of water, only 40 g of Z will solve and the remaining 20 g will be in the water as precipitate or remaining solid.

Now if you just put 40 g of Z in 100 mL water, it will dissolve completely in water, and in this case, we have a saturated solution. A saturated solution is when you dissolve a determinated quantity of a solute in a determinated quantity of solvent, without remaining of solid or excess of solvent.

According to this explanation, we now have 120 g of Z. To make a saturated solution of Z with this quantity, well, let's do math. If 40 g dissolves in 100 mL, then 80 g would be 200 mL and 120 g would have to be 300 mL of water. But in this case, we have 450 mL of water, we have more than 300 mL, an excess of water, so, the 120 g will dissolve but it's dissolved in more than the needed quantity to be a saturated solution, therefore, we have an unsaturated solution of Z (more solvent than the needed).

Hope this helps.

8 0
3 years ago
I need help with 17,18,19,& 21
valentinak56 [21]

Answer:

17. tie hair up

wear goggles

18. i don't know

19. you light it on the side of the box

20. it should be orange because that is the safest.

21. you turn down the electricity thing

3 0
3 years ago
HELP I HAVE 1 MINUTE LEFT
Katen [24]

Answer:

1

Explanation:

Because its on top the higher it is, the more potential energy it has

3 0
3 years ago
The reactions of glycolysis occur in the cell's ________; the reactions of the citric acid cycle occur in the ________.
Reil [10]

Answer:

The reactions of glycolysis occur in the cell's <u>cytoplasm</u>; the reactions of the citric acid cycle occur in the <u>mitochondria</u>.

Explanation:

<em><u>Explanations of some terms</u></em>

Glycolysis

Glycolysis takes place in the cytosol of the cell's cytoplasm. Glycolysis starts when glucose diffuses into a cell through the plasma membrane down its concentration gradient. Glycolysis is a metabolic pathway present in all organisms: from yeast to mammals that involves the oxidation of glucose molecules, the single most important organic fuel in plants, and animals to pyruvate with the generation of ATP (Adenosine triphosphate) and NADH (nicotinamide adenine dinucleotide + hydrogen)

Citric acid cycle

Citric acid cycle also known as the Krebs cycle plays a major role in the process of energy production and biosynthesis as it oxidizes glucose derivatives, fatty acids and amino acids to carbon dioxide.

6 0
3 years ago
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