2 years ago

How many grams of H2O can you make with 120g of O2. Unbalanced equation is: H2 + O2 -> H2O

Chemistry

1 answer:

kakasveta [241]2 years ago

4 0

Answer:

Explanation:

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Explain why the elements of groups 1 and 7 are mostly used in<br> the form of compound

docker41 [41]

Group 1 and group 7 of element group consists of alkali metal, which are generally combined with other elements in nature, so they have properties of compound

8 0

2 years ago

an element in group two has two valence electrons. When forming a chemical bond it will most likely (gain, lose, share, or not r

Charra [1.4K]

Lose electrons - electrons want to fill their outer valence shell, so sometimes instead of gaining it is easier to lose some and have a filled outer shell

3 0

2 years ago

Is 0.2 liters of soda the same measurement as 2000 grams of soda

vesna_86 [32]

Answer:

0.2 liters = 200 grams

Explanation:

G = L x 1000

G= 0.2 x 1000

G= 200g

3 0

1 year ago

What information does the atomic number provide about an atom?

rjkz [21]

Identifies the number of protons a single atom of the element contains.

The atomic number helps people identify elements according to the number of protons one atom of the element has. It essentially defines the element

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2 years ago

A sample of copper is known to contain 3.01 x 1023 atoms. How many mols of

snow_tiger [21]

Answer:

<h2>0.5 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{3.01 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{1}{2} \\ = 0.5$

We have the final answer as

<h3>0.5 moles</h3>

Hope this helps you

6 0

2 years ago