3 years ago

The word elliptical refers to what type of shape?

Chemistry

2 answers:

Nana76 [90]3 years ago

8 0

It relates to an oval.

DerKrebs [107]3 years ago

3 0

The word elliptical refers to regular ovals.

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How many of the zeros in the measurement 0.050060 are significant

Feliz [49]

I think 3 of them are its been 1 half years since ive done this i dont take chemistry anymore

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3 years ago

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Which of the following statements does not describe what he structure of an atom an atom has a small dense center called nucleus

nikklg [1K]

Answer:

inside the nucleus of an atom are protons and electrons.

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2 years ago

What is the volume of a rock that has a mass of 50 grams and a density of 5 g/ml?

Brut [27]

Explanation:

density = mass/ volume

so,

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3 years ago

One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metal

kenny6666 [7]

Answer:

Lithium oxide, Li₂O.

Explanation:

Hello!

In this case, according to the given amounts, it is possible to write down the chemical reaction as shown below:

$M_2O+H_2\rightarrow 2M+H_2O$

Which means that the metallic oxide has the following formula: M₂O. Next, we can set up the following proportional factors according to the chemical reaction:

$5.00gM_2O*\frac{1molM_2O}{(2*X+16)gM_2O}*\frac{2molM}{1molM_2O}*\frac{XgM}{1molM}=2.32gM$

Thus, we perform the operations in order to obtain:

$\frac{10X}{(2X+16)}=2.32$

So we solve for x as shown below:

$10X=2.32(2X+16)\\\\10X=4.64X+37.12\\\\X=\frac{37.12}{10-4.64}\\\\X= 6.93g/mol$

Whose molar mass corresponds to lithium, and therefore, the metallic oxide is lithium oxide, Li₂O.

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3 years ago

2 Points What is the oxidation state of Cl in HCIO3? A:+5 B:-1 C:+6 D: -7

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Answer:

The oxidation state of Cl in HCIO3 is +5

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3 years ago