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2 years ago

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Which of the following increases the reaction rate? A. Adding a catalyst to the reaction mixture B. Increasing the size of solid

reactant particles C. Lowering the pressure of gaseous reactants D. Adding an inert gas to the reaction mixture

1 answer:

pickupchik [31]2 years ago

7 0

A. Adding a catalyst. A catalyst by definition is a compound that speeds up reaction rates.

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Help me answer this question please?

Tema [17]

Answer:

I think D

Explanation:

Ok, I'm not sure but it sounds right ish you should check a practice video or something. It might also be B or C but im pretty certain it isnt A just ask yourself is the student measuring it in newtons? Is that important in the process? What about if the student is considering the affect of mass is it important? Good luck srry if im not much of help! If this is like A SUPER IMPORTANT TEST OR SOMETHING RLLLLLLLY IMPORTANT just wait for another answer gl!

5 0

2 years ago

If you push on a wall with 200n with what forth with the wall push back

sweet-ann [11.9K]

According to newtons law every action has a equal reaction therefore it will push back 200n aswell

4 0

2 years ago

How many grams of Fe2+ are there in 0.003109 moles of Fe2+?

Sergio [31]

Answer: 0.174 g

Explanation:

First of all understand that charge on an atom like here 2+ will not vary molar mass. because ions are formed by loss or gain of electrons and electrons do not contribute to the mass of an atom or ion. so losing or gaining electron doesnt create any difference.

molar mass of Fe, i.e. mass of 1 mole of Fe is 56 g. So, mass of 1 mole of Fe2+ will also be 56 g.

given is 0.003109 moles of Fe2+,

Use maths,

1 mole of Fe2+ weighs 56 g

So, 0.003109 moles will weigh = (56 g / 1 mol ) x 0.003109 = 0.174 g.

7 0

2 years ago

A chef makes a marinade by mixing red pepper flakes, dried onion flakes, and a ground ginger with soy sauce. He sets the marinad

Alisiya [41]

Answer:

Suspension

Explanation:

This mixture is a simple suspension.

A suspension is a mixture of small insoluble particles of a solid in a liquid or gas. Here, it is insoluble particles in liquid.

Suspensions are settle on standing this is why they have to be mixed again.
The particles do not pass through ordinary filter paper.
They are usually cloudy and have an opaque color.
The marinade is simply a suspension.
It is not a solution because they do not settle on standing.
Also, colloids do not settle on standing.

3 0

3 years ago

Read 2 more answers

when solid pellets of sodium hydroxide (naoh) dissolve in water, the temperature of the water can rise dramatically. taking naoh

irga5000 [103]

ΔSsys and ΔSsurr both have values larger than 0.

<h3>Entropy Change: What Is It?</h3>

Entropy change is a phenomena that measures the evolution of randomness or disorder in a thermodynamic system.
It has to do with how heat or enthalpy is converted during work.
More unpredictability in a thermodynamic system indicates high entropy.
Heat transport (delta Q) divided by temperature equals the change in entropy (delta S).

<h3>What causes variations in entropy?</h3>

When a substance is divided into several pieces, entropy rises.
Because the solute particles are split apart when a solution is generated, the dissolving process increases entropy.
As the temperature rises, entropy increases.

learn more about entropy change here

brainly.com/question/6364271

#SPJ4

8 0

1 year ago