Which choice is an example of a consumer? Question 9 options: tree fungi bee sun

Chemistry

2 answers:

Anettt [7]3 years ago

6 0

I think it's C. Bee well u can search it up on google it can give u a better answer

xz_007 [3.2K]3 years ago

3 0

The correct answer is C) Bee, any living thing, such as a bee, cannot make its own food therefor it is a consumer

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3 years ago

What volume (ml) of 3.0 m naoh is required to react with 0.8024-g copper(ii) nitrate? what mass of copper(ii) hydroxide will for

babunello [35]

The reaction between NaOH and Cu(NO₃)₂ is as follows
2NaOH + Cu(NO₃)₂ ---> 2NaNO₃ + Cu(OH)₂

Q1)
stoichiometry of NaOH to Cu(NO₃)₂ is 2:1
this means that 2 mol of NaOH reacts with 1 mol of Cu(NO₃)₂
the mass of Cu(NO₃)₂ reacted - 0.8024 g
molar mass of Cu(NO₃)₂ is 187.56 g/mol
therefore the number of Cu(NO₃)₂ moles that have reacted
- 0.8024 g/ 187.56 g/mol = 0.00427 mol
according to the stoichiometry , number of NaOH moles - 0.00427 mol x 2
then number of NaOH moles that have reacted - 0.00855 mol
In a 3.0 M NaOH solution, 3 moles are in 1000 mL of solution
Then volume required for 0.00855 mol - 1000 x 0.00855 /3 = 2.85 mL
2.85 mL of 3.0 M NaOH is required for this reaction

Q2)
Assuming that there's 100 % yield of Cu(OH)₂ , we can directly calculate the mass of Cu(OH)₂ formed from the number of moles of reactants that were used up.
Stoichiometry of Cu(NO₃)₂ to Cu(OH)₂ is 1:1
this means that 1 mol of Cu(NO₃)₂ gives a yield of 1 mol of Cu(OH)₂
the number of Cu(NO₃)₂ moles that reacted - 0.00427 mol
Therefore an equal amount of moles of Cu(OH)₂ were formed
Then amount of Cu(OH)₂ moles produced - 0.00427 mol
Mass of Cu(OH)₂ formed - 0.00427 mol x 97.56 g/mol = 0.42 g
A mass of 0.42 g of Cu(OH)₂ was formed in this reaction

7 0

4 years ago

Read 2 more answers

Is propane, c3h8, an element, a compound, a homogeneous mixture, or a heterogeneous mixture?

julsineya [31]

Pure substances that cannot be broken down into other substances by any chemical or physical means are known as element.

Pure substances that can be broken down into elements by any chemical or physical means are known as compounds.

Combination of pure substances in which they retain their properties is known as mixture.

Mixtures in which the components of mixture are uniformly distributed are known as homogeneous mixture whereas mixtures in which its components are can be easily seen are known as heterogeneous mixture.

Since propane, $C_3H_8$ is made up of two different elements that is carbon, $C$ and hydrogen, $H$ . There are 3 carbon and 8 hydrogen atoms present in the propane molecule.