समश्याजिक क्या है हाइड्रोजन का समस्थानिय को समपस्य?

Which statement best describes the properties of sucrose?

crimeas [40]

Answer:

D. They are different from the properties of carbon, oxygen, and hydrogen.

Step-by-step explanation:

Carbon, oxygen, and hydrogen are all elements.

Sucrose is a compound containing carbon, oxygen, and hydrogen. Its properties are different from those of its elements.

For example, carbon is a black solid, while oxygen and hydrogen are colourless gases. Sucrose is a white solid.

6 0

3 years ago

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Uranium – 235 has a half-life of 713 million years. Would uranium – 235 or carbon – 14 be more useful for dating Cambrian time e

kenny6666 [7]

Uranium-235 would be more useful for dating in Cambrian time because Cambrian time was 540 million years ago while the half life of carbon-14 is only 5,730 years
Hope this helps

6 0

3 years ago

Is a book sitting high upon a shelf a balanced force or an unbalanced force

Art [367]

Balanced force I think

7 0

3 years ago

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A compound is composed of 13% carbon, 4.3% hydrogen, 30.4% nitrogen, and 52.2% oxygen. The mystery compound has a molar mass of

vredina [299]

Answer:

C₂H₈N₄O₆ is the molecular formula for the compound

Explanation:

Data from the problem:

13 g of C in 100 g of compound

4.3 g of H in 100 g of compound

30.4 g of N in 100 g of compound

52.2 g of O in 100 g of compound

Firstly we determine, the mass of each in 184 g of compound, which is 1 mol

(13 g / 100 g) . 184 g = 24 g C

(4.3 g / 100 g) . 184 g = 7.91 g H ≅ 8 g H

(30.4 g / 100 g) . 184 g = 56 g N

(52.2 g / 100 g) . 184 g = 96 g O

And now, we divide the mass by the molar mass of each to determine the moles:

24 g C / 12 g/mol = 2 mol C

8g H / 1 g/mol = 8 mol H

56 g N / 14 g/mol = 4 mol N

96 g O / 16 g/mol = 6 mol O

So the molecular formula of the compound is C₂H₈N₄O₆

8 0

3 years ago

A certain satellite orbiting Earth has a speed of about 17,000 miles/hour. What is its approximate speed expressed to the correc

algol [13]

Answer:- The speed of the satellite is 7.6 $\frac{kilometer}{second}$ .

Solution:- It's a unit conversion problem that could be solved using dimensional analysis which is also known as train trail method.

The given speed of the satellite is 17000 miles per hour and we are asked to convert it to kilometers per second.

given:

1 Kilometer = 0.62 mile

1 hour = 3600 second

Let's use this given info and plug in the values to make the set up as:

$17000\frac{mile}{hour}(\frac{1 kilometer}{0.62 mile})(\frac{1 hour}{3600 second})$

= 7.616 $\frac{kilometer}{second}$

We round the answer to two significant figures, since the given number(17000) has only two significant figures.

Hence, the speed of the satellite is 7.6 $\frac{kilometer}{second}$ .

6 0

3 years ago

समश्याजिक क्या है हाइड्रोजन का समस्थानियको समपस्य?​

समश्याजिक क्या है हाइड्रोजन का समस्थानियको समपस्य?