3 years ago

Why is there day and night

1 answer:

6 0

Because the moon orbits the earth and when the moon gets in front of the sun it blocks the sunlight and then it becomes night

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Alex_Xolod [135]

Answer:

Explanation:

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2 years ago

Convert 5.28 x 1019 molecules of C6H1206 to grams.

nlexa [21]

Answer:

$m=0.0158g$

Explanation:

Hello there!

In this case, it is possible to comprehend these mass-particles problems by means of the concept of mole, molar mass and the Avogadro's number because one mole of any substance has 6.022x10²³ particles and have a mass equal to the molar mass.

In such a way, for C₆H₁₂O₆, whose molar mass is about 180.16 g/mol, the referred mass would be:

$m=5.28x10^{19}molecules*\frac{1mol}{6.022x10^{23}molecules}*\frac{180.16g}{1mol}\\\\m=0.0158g$

Best regards!

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3 years ago

How many iron atoms are in the formula for iron(III) oxide?

velikii [3]

Answer:

There is two iron atoms.

Explanation:

The formula iron oxide is Fe2O3 F e 2 O 3 therefore there would be two. Hope this helps. :)

8 0

3 years ago

Who invented the thermometer

Dvinal [7]

Gabriel Fahrenheit invented the thermometer

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3 years ago

GIVING ALOTS OF POINTS !!! Is the following sentence true or false? Where a river flows in a straight

Neko [114]

Answer: yes true

Explanation: 1. Toward the middle of a river, water tends to flow fastest; toward the margins of the river it tends to flow slowest. 2. In a meandering river, water will tend to flow fastest along the outside bend of a meander, and slowest on the inside bend.

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2 years ago