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4 years ago

Distinguish mass and gravity

Chemistry

1 answer:

nalin [4]4 years ago

8 0

Answer: Mass is a quantity of matter, Gravity is a force that attracts one thing to another thing.

Explanation: An example of how the two connect, is how mass directly impacts how much gravity something contains, specifically the planets in our solar system. A way they’re different is that gravity is a force and mass is another form of matter being changed to represent something different in the scientific world.

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A chemistry student conducted several different procedures. Which of the following procedures best demonstrates the law of conse

Vsevolod [243]

Answer:

combining 2 grams of copper and 4 grams of sulfur to make 6 grams of copper sulfate

Explanation:

The Law of Conservation of Mass states that matter cannot be created or destroyed in chemical reactions. It posits that the mass of a substance remains unchanged after undergoing a chemical process.

Therefore, according to the question, the procedure that best demonstrates the law of conservation of mass after the chemistry student conducted different procedures is option D.

This is because, the mass of copper and sulfate did not change but merely combined to form a compound.

7 0

3 years ago

If the half life of a radioactive isotope is 1 day, then how much of the original isotope remains at the end of two days?

ikadub [295]

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25%

Explanation:

In a half life of a radioactive isotope is 1 day,it means it loses its half mass each day

We a formula for N half life

$\sf { \frac{1}{2} }^{n}$

where n is the number of days

Here the isotope is kept for 2 days

so it's left over mass will be

$\sf { (\frac{1}{2}) }^{2} \\ \\ \\ \frac{1}{2} \times \frac{1}{2} \\ \\ \sf \frac{1}{4}$

It's left over mass 1/4th of the original mass

Now, we need to find it's percentage by multiplying with 100

$\sf \frac{1}{4} \times 100 \%\\ \\ \sf \cancel\frac{100}{4} \% \\ \\ \sf 25\%$

So 25% mass will be left after 2 day of half life radioactive isotope.

8 0

2 years ago

Read 2 more answers

What force was applied to an object if 35 j of work was done and the object moved 7 m?

Serjik [45]

5N force was applied to an object if 35 j of work was done and the object moved 7 m

A force is an effect that can alter an object motion according to physics and an object with mass can change its velocity or accelerate as a result force and also force is as push or pull and work done by the force on an object means assuming that direction of the force is parallel to the displacement of the object

Then the formula is

W = f × d

Where f is the magnitude of force and d is the displacement of the object

Then W = 35 J is the work done and

d = 7m is the displacement of the object

So rearrange the equation then

F = 35/7 = 5N

5N force was applied to an object if 35 j of work was done and the object moved 7 m

Know more about object

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8 0

2 years ago

I have no clue how to do this. If someone could answer all or a few questions i would really appreciate it

yarga [219]

It’s kind of difficult to explain without being with you in person but try looking up videos on YouTube as they tend to be extremely helpful. Don’t give up on the videos right away though, keep watching it over and over until you understand. Also try to find a teacher or a smart friend to help to if you still don’t understand. I recommend getting a tutor if you require long term help. Best of luck in your studies!!

5 0

3 years ago

When a solute dissolves, the process is referred to as _____.

ziro4ka [17]

The coorect answer would be A

7 0

4 years ago

Read 2 more answers