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svet-max [94.6K]
3 years ago
5

A welder has 1.873 × 102 g Fe2O3 and 94.51 g Al in his welding kit. Which reactant will he run out of first?

Chemistry
2 answers:
maksim [4K]3 years ago
5 0
This is the process i used to find the answer

nalin [4]3 years ago
5 0

Answer:

Fe2O3

Explanation:

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If a flask containing one liter of water was poured into 1,000 small cubes, then each cube would contain:
erastova [34]
Every cube would contain 1 milliliter of water, or .01 liter
7 0
3 years ago
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Find the density of an object that has a mass of 28 grams and a volume of 2 points<br> 38.6 cm^3. *
Shtirlitz [24]

Answer:

<h2>0.73 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{28}{38.6}  \\  =0.72538...

We have the final answer as

<h3>0.73 g/cm³</h3>

Hope this helps you

4 0
2 years ago
What is true about past volcanic eruptions?
Nimfa-mama [501]

Answer:

It is either

Past volcanic eruptions leave marks on rocks near the volcano.

Past volcanic eruptions leave marks in the atmosphere.

My guess is C.

Explanation:

4 0
3 years ago
For a snack, I ate 40 gummy bears. Each gummy bear weighs 3g.
slega [8]

Taking into account the rule of three, you eat 480 kcal.

<h3>Rule of three</h3>

The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

That is, what is intended with it is to find the fourth term of a proportion knowing the other three.  

If the relationship between the magnitudes is direct, the direct rule of three must be applied as follow, being a, b and c known data and x the variable to be calculated:

a ⇒ b

c ⇒ x

So: x= (c×b)÷ a

<h3>kcal of eaten gummy bears</h3>

To know the mass of eaten gummy bears, the following rule of three applies: if 1 gummy bear weighs 3 g, 40 gummy bears weigh how much mass?

1 gummy bear ⇒ 3 g

40 gummy bears ⇒ x

So: x= (40 gummy bears× 3 g)÷ 1 gummy bear

Solving:

<u><em>x= 120 g</em></u>

If gummy bears are 100% carbohydrates and carbohydrates are 4 kcal/g, the following rule of three applies: If 1 g has 4 kcal, 120 g has how many kcal?

1 g ⇒ 4 kcal

120 g⇒ x

So: x= (120 g× 4 kcal)÷ 1 g

Solving:

<u><em>x= 480 kcal</em></u>

In summary, you eat 480 kcal.

Learn more with this example:

brainly.com/question/12482948

#SPJ1

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1 year ago
In the diagram to the right, the battery provides 12 V to the circuit made up of three identical light bulbs. When the switch is
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I don’t know I need that answer to
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