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rusak2 [61]
2 years ago
12

Which statement accurately compares these flashlights?

Chemistry
1 answer:
bezimeni [28]2 years ago
3 0

The small flashlight has less inertia and smaller force is required to move it.

According to Newton's first law of motion, an object will continue at rest or in its state of uniform motion unless it is acted upon by an external unbalanced force. This is also called the law of inertia.

The quantity of mass contained in a body is a measure of its inertia. The greater the mass of the body, the greater the inertia and the greater the force required to move the body.

The smaller flashlight has less inertia than the larger flashlight, so  it takes less force to change the motion of the smaller flashlight.

Learn more about Newton's law : brainly.com/question/13678295

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When iron(III) oxide (Fe2O3) is exposed to carbon monoxide (CO) under high pressure, metallic iron (Fe) and carbon dioxide (CO2)
DedPeter [7]

Answer:

The equation is Fe₂O₃ + CO ⇒ Fe + CO₂.

The balanced reaction equation is Fe₂O₃ + 3CO ⇒ 2Fe + 3CO₂.

Explanation:

First, we have to write our equation. It's actually pretty straightforward - first we look for our reactants (looks like it's Fe₂O₃ and CO), then we look for our products (Fe and CO₂). Then, we have to balance it so that both sides have the same number of both element.

Currently, we have the equation Fe₂O₃ + CO ⇒ Fe + CO₂. There are 2 Fe atoms, 4 O atoms, and 1 C atom on the left side. There is 1 Fe atom, 2 O atoms, and 1 C atom on the right side.

First thing we can do is give our Fe on the right side a coefficient of 2. This will make it equivalent to the 2 Fe atoms on the left side:

Fe₂O₃ + CO ⇒ 2Fe + CO₂

Next, we need to make sure that we have the same number of C and O atoms on each side. This takes a little bit of thinking, but what we have to do is give CO a coefficient of 3 and CO₂ a coefficient of 3. This gives us 6 O atoms on the left side (when we include the O₃) and 6 O atoms on the right side (since there are 3 O₂ atoms and 3 times 2 is 6). Here's what that looks like:

Fe₂O₃ + 3CO ⇒ 2Fe + 3CO₂

And that's how I balanced the equation. It can be confusing, but with enough practice, it will get easier and easier. :)

8 0
3 years ago
Why is Adam Driver hot? like I want him to step on me :)
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Answer:

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5 0
3 years ago
Describe the term molarity as it relates to an acid or base.
Sidana [21]
Molarity is expressed as the number of moles of solute per volume of the solution. For example, we are given a solution of 2M NaOH this describes a solution that has 2 moles of NaOH per 1 L volume of the solution. Acids and bases can be measured through the concentrations of H+ and OH- ions in units of molarity. Hope this helps.
4 0
3 years ago
Read 2 more answers
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How m
Shalnov [3]

Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

<h3>How to calculate the mass of solution ? </h3>

Given percentage of Pb present in the sample solution is 0.0011%

That means 0.0011 grams of Pb present in the 100g of solution.

So,

= \frac{0.150\ \text{g Pb} \times 100\ \text{g water}}{0.0011\ \text{g of Pb}}

= 13.6 × 10³ g water

<h3>What is Density ? </h3>

The mass per unit volume is called density. Density is represented as D or ρ.

It is expressed as:

\rho = \frac{m}{V}

where,

ρ = Density

m = mass of the object

V = Volume of object

Now put the value in above expression we get

\rho = \frac{m}{V}

1\ g/ml = \frac{13.6 \times 10^3}{V}

V = 13.6 × 10³ ml

Thus from the above conclusion we can say that Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

Learn more about the Density here: brainly.com/question/1354972

#SPJ4

6 0
2 years ago
A deep sea diver must descend and ascend in short steps
Black_prince [1.1K]
A deep-sea diver must descend and ascend in short steps to equalize pressure on his body.
4 0
3 years ago
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