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creativ13 [48]
2 years ago
5

A radioisotope has a half-life of 5 minutes. What fraction of material would remain after

Chemistry
1 answer:
Rudik [331]2 years ago
8 0
It should be 1/32 after half an hour.
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A ball-and-stick model of a molecule of formaldehyde, ch2o, is made from the following components: what do the sticks represent?
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In chemistry, the ball-and-stick model is a molecular ideal of a chemical matter which is to expose both the three-dimensional position of the atoms and the bonds among them. The atoms are normally symbolise by spheres, join by rods which shows the bonds.

Formaldehyde forms formaldehyde structure bond it shares double bond with O2 atoms.

Formaldehyde also known as methanol .

Methanol is colourless.

It is flammable.

It is gas at room temperature.

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To know more about Formaldehyde here :

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6 0
1 year ago
Which of the following best describes an ecosystem in a California tide pool?
frosja888 [35]

Answer: i think your answer is<u> The giant green anemones, the ochre sea stars, and the red octopuses</u> because an ecosystem means all the organisms and the physical environment with which they interact. If not then your other option would be <u>A a school of fluffy sculpins.</u>

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8 0
2 years ago
What is the compound with sodium and bromine called?
kykrilka [37]

Answer:

Sodium Bromide

4 0
2 years ago
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Which concept describes the formation of four equivalent, single, covalent bonds by carbon in its compounds that resembles metha
Montano1993 [528]
Carbon is special and unique because it is able to form different compounds with a lot of elements, including itself. When it bonds with itself, this is possible because of the concept of hybridization. It is the mixing of atomic orbitals into a new hybrid orbital. In this case, methane is formed through the sp³ hybridization.
4 0
3 years ago
Cu1+ and O2- what is the formula and what is the name of it
sammy [17]

Answer:

copper I oxide

Explanation:

Copper is known to form two oxides; copper I oxide and copper II oxide.

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Cu^+  +  O^2-   -------> Cu2O

This compound is copper I oxide

3 0
3 years ago
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