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Gnom [1K]
3 years ago
9

Which of the following is a compound? A. Sn B. CO C. H D. Mg

Chemistry
1 answer:
UkoKoshka [18]3 years ago
3 0
The correct answer is:  [B]:  " CO " .
____________________________________________________________
 <u>Note</u>:  This is the only answer choice given that contains two different elements.
____________________________________________________________
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A solution of sugar contains 35 gramsof sucrose, C12H22O11in 100 mL of water. What is the percent composition of the solution?
KATRIN_1 [288]

Answer:

Percent composition of the solution is 26 % of sucrose and 74 % of water

Explanation:

Percent composition is the mass of solute, either of solvent in 100 g of solution.

Mass of solution = Mass of solvent + Mass of solute

Mass of solute = 35 g

Mass of solvent = 100 g

As we know, water density = 1g/mL

So 1g/mL . 100 mL = 100 g

35 g + 100 g = 135 g → Mass of solution

(Mass of solute / Mass of solution) . 100 =

(35 g / 135 g) . 100 = 26 %

(Mass of solvent / Mass of solution) . 100 =

(100 g / 135 g) . 100 = 74 %

8 0
3 years ago
Scientists in a lab are working on a series of experiments that involve colliding two or more atomic nuclei at very high speeds
Ket [755]

Answer: Scientists are working on nuclear fusion process. Nuclear fusion is the process in which two atomic nuclei combine to form another nuclei. In the process either energy is absorbed or released due to the difference in the mass of reactants and products.

Explanation:

5 0
3 years ago
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What do waves carry from place to place​
mario62 [17]

Answer:

Waves carry energy from place to place.

Explanation:

Some waves are used for mainly communication and phone signals. They help people get internet in the middle of nowhere if you are near an energy wave.

3 0
3 years ago
Complete and balance the following acid-base reaction equation ______HNO3 + ______ Mg(OH)2 ------&gt;
jekas [21]

Answer

_2 HNO₃ + 1 Mg(OH)₂ → 1 Mg(NO₃)₂ + 2 H₂O

Explanation

Given:

______HNO3 + Mg(OH)2 ------>

Solution:

Note that the reaction between an acid and a base will give salt and water only.

Hence the complete reaction of the given equation is:

___HNO₃ + Mg(OH)₂ → Mg(NO₃)₂ + H₂O

To get the balanced equation for the acid-base reaction, 2 moles of HNO₃ will react with 1 mole of Mg(OH)₂ to produced 1 mole of Mg(NO₃)₂ and 2 moles of H₂O.

Therefore, the complete and balanced equation for the given acid-base reaction is:

_2 HNO₃ + 1 Mg(OH)₂ → 1 Mg(NO₃)₂ + 2 H₂O

5 0
1 year ago
What is the acceleration of a 50 kg object pushed with a force of 500 newtons?
son4ous [18]

Answer:

F = MA

500 = 50 multiply by A

A= 500/50

A= 10m/s2

3 0
2 years ago
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