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3 years ago

I need help answers these questions, I don’t know what the question is asking.

Chemistry

1 answer:

BigorU [14]3 years ago

4 0

Answer:

just look at the subscripts, the tiny numbers. in C4H4O4 , there are 4 C molecules, 4 H, and 4 O

Explanation:

hope this helps. good luck

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A new element R shows chemical properties similar to the element sodium. What is the correct formula of a compound formed with R

zlopas [31]

Answer:

R2S this is because sodium has one 1 valence and sulfur has valence of 2 so when they combine theyinterchange their valence

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3 years ago

If the distance between two objects is increased, the gravitational force will _____.

Mila [183]

Answer:

Decrease by the distance squared

Explanation:

Gravitation formula:

$F=\frac{GMm}{r^{2}}$

where

'F' is the force of attraction between the two bodies (Gravitational force),

'G' is the universal gravitational constant,

'M' is the mass of the first object,

'm' is the mass of the second object and

'r' is the distance between the centers of each object.

Hence, with the increase by distance between two objects , the gravitation decreases by the distance squared

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3 years ago

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What can happen when earth materials overcome the force of friction holding them together?

gizmo_the_mogwai [7]

The answer is B), a landslide.

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3 years ago

A 0.600 g sample of a compound of arsenic and oxygen was found to

ss7ja [257]

Answer:

The answer is C. As2O3

Explanation:

0.600 gr of Arsenic and Oxygen.

0.454 gr of Arsenic

So, 0.146 gr of Oxygen will be in the compound.

- First: The grams of each element must be divided by its atomic weight:

0.454 gr As / 74.92u As = 0.00606

0.146 gr O / 16u O = 0.009125

- Both results must be divided by the lowest number found:

0.00606 / 0.00606 = 1 As

0.009125 / 0.00606 = 1.5 O

- As one of the values is not an integer then both results are multiplied until both give an integer:

1 As * 2 = 2 As

1.5 O * 2 = 3 O

- Then the answer is given:

As2O3

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3 years ago

Solid mercury(II) oxides(s) breaks down when heated, forming the elements mercury(l) and oxygen(g).

kherson [118]

Explanation:

2HgO ----∆---> 2Hg + O2

THAT'S THE EQUATION

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