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Paraphin [41]
4 years ago
11

Science fair ideas? please help

Chemistry
2 answers:
egoroff_w [7]4 years ago
8 0
You can Maybe do a volcano?
Neko [114]4 years ago
7 0
When I was in elementary school, I grew several pea plants and watered them with different liquids and measured their growth.  
This is a good experiment because the plants were easy to care for, it provided a lot of pictures which made it easy to present, and it required minimal research. 

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Someone pls help me I will make you brain
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I think it's true look at the picture

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3 years ago
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0.50 mol A, 0.60 mol B, and 0.90 mol C are reacted according to the following reaction
algol [13]

Reactant C is the limiting reactant in this scenario.

Explanation:

The reactant in the balanced chemical reaction which gives the smaller amount or moles of product is the limiting reagent.

Balanced chemical reaction is:

A + 2B + 3C → 2D + E

number of moles

A = 0.50 mole

B = 0.60 moles

C = 0.90 moles

Taking A as the reactant

1 mole of A reacted to form 2 moles of D

0.50 moles of A will produce \frac{2}{1} = \frac{x}{0.50}

thus 0.50 moles of A will produce 1 mole of D

Taking B as the reactant

2 moles of B reacted to form 2 moles of D

0.60 moles of B reacted to form x moles of D

\frac{2}{2} = \frac{x}{0.6}

x = 2 moles of D is produced.

Taking C as the reactant:

3 moles of C reacted to form 2 moles of D

O.9 moles of C reacted to form x moles of D

\frac{2}{3} = \frac{x}{0.9}

= 0.60 moles of D is formed.

Thus C is the limiting reagent in the given reaction as it produces smallest mass of product.

5 0
3 years ago
If you mix salt sand and sugar with water what will the mixture be a suspension or solution
Basile [38]
If you mix salt sand and sugar with water what will the mixture be a solution because both sugar and salt can be diluted until the saturation point
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3 years ago
How many valence electrons in <br> 4s1
Gekata [30.6K]

Answer:

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a

Explanation:

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3 years ago
Two people are trying to push a large box across a floor. Each person pushes with an equal amount of force. The total amount of
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Answer:

C- 250+250= 500 newtons (the amount the both exerted) :)

Explanation:

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