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saw5 [17]
3 years ago
15

URGENT!!!!! PLEASE HELP

Chemistry
1 answer:
Marizza181 [45]3 years ago
8 0

Answer:

Explanation:

Copper is a single element, not made up of anything but copper.

Salt is an element, as it is made up of multiple things, such as chlorine and sodium, but are combined per molecule. Jelly beans are made up of multiple elements, but are a mixture as they are not all the same. there isn't a single "jelly bean" molecule that is uniform throughout them.

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Given the chemical reaction Fe3O4 + H2 ⟶ Fe + H2O, identify the coefficient of H2O in the balanced equation.
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What 2 chemicals react together during photosynthesis
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Answer:

The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis.

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Can I get brainliest?

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3 years ago
Draw the lewis structure for bef2 in the box at the right, including lone pairs.
Kamila [148]

Answer :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and the unpaired electrons present in the molecule.

The given molecule is, BeF_2

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Total number valence electrons in BeF_2 = 2 + 2(7) = 16

According to the Lewis-dot structure, there are '4' number of bonding electrons and 12 number of non-bonding electrons (lone-pair).

The Lewis-dot structure is shown below.

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Answer:

the answer is c I took the test

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