Chemistry Middle School

How can a chemical reaction be sped up?

Select from the drop-down menu to correctly complete the statement.

Pack in more of the reactant to increase the

A.) Catalyst

B.) Concentration

C.) Surface Area

D.) Temperature
.

Answers

Answer 1
The answer would be A) Catalyst because it can helps speed up the chemical reaction
Answer 2

Answer: the answer would be A) Catalyst because it can help speed up the chemical reaction

Explanation: the answer would be A) Catalyst because it can help speed up the chemical reaction. Hopes this helps :)

Related Questions

How can a chemical reaction be sped up?

Select from the drop-down menu to correctly complete the statement.

Increase the

A.) Catalyst

B.) Concentration

C.) Surface Area

D.) Temperature

to allow the reaction to happen with more energy.

Answers

Answer:

Temperature i think

Explanation:

Answer:

A catalyst

Explanation:

Gravity is also affected by mass.which is the amount of matter in an object. As the amount of mass increases, the force of gravity

Answers

Answer:

As the amount of mass increases, the force of gravity INCREASE.

Explanation:

"Increases"
The more mass, the greater the force of gravity.

Please help its also urgent ( I have 7 more questions)

Answers

Answer:

The answer is D) High Temperature and Little Rainfall

Explanation:

Answer:

ITS D

Explanation:

ITS d i hope this helps you

Follow these steps:

Carefully measure out 3 Tablespoons of cold water into the jar.

Now measure out 1/8 teaspoon of salt and put it into the jar with the water. Put the lid on the container and shake it. Keep shaking until the salt is completely dissolved. To determine whether it has completely dissolved, hold the container up to the light and look carefully at the bottom, or open the lid and look into it. If you see little grains of salt there, it is not completely dissolved, so keep shaking until it looks the same each time you look.

If the salt does not dissolve completely after five minutes of vigorous shaking, write this in your notebook and go on to step 4. If the salt dissolves completely, add another 1/8 teaspoon of salt and repeat the process. Repeat over and over, keeping track of how many 1/8 teaspoons you add. Stop when you can’t get the salt to dissolve no matter how hard or long you shake the container.

Record how much salt you were able to dissolve in the 3 Tablespoons of water in the solubility data table.

Repeat steps 1-4, but this time using very warm or hot water. Before you do it, run the jar under hot water to warm it up so the water doesn’t cool off right away. Be sure to use the same amounts of water and salt as you did the first time. The only variable should be the temperature of the water.

Record your results, and then compare them with your previous results.
Were there any differences in the amount of salt that dissolved in the warm water versus the cold water?

Answers

Answer:

Alot of salt dissolved in warm water than in cold water

Explanation:

This is because cold water does  not dissolve alot of salt and hot water dissolves alot of salt because of the kinetic energy acting on the liquid

one spoonful of drink crystals has a mass of about 4g. Calculate the mass of the crystals that dissolved in 100mL of water to form a saturated solution

Answers

Answer:

We want Concentration=Mass of solute100 mL volume of solvent . We make the reasonable assumption that the volume of solution is equal to 40⋅mL

PLEASE help
Which of these factors play a role in creating weather conditions

Question 7 options:

temperature


humidity


air pressure


wind


all of these

Answers

Answer:

All of the above

Explanation:

I'm no expert but it looks like all of those would affect weather somehow

I’ve done some research and come to a conclusion that all of the above would create a role in creating weather conditions

Help me please??????? :/

Answers

Compression: A
Rarefaction: B
Wavelength: C
1. A
2. B
3. C

yw !!!

5g of the mixture of gold and zinc metals are dropped into 20% of a dilute solution of HCl to form 1.12L of gas at STP.( H =1, Zn= 65, Cl =35.5, Au =108, at STP: 2g of H2 has 22.4L))
a.Find the mass of zinc metal
b.Find the mass of gold metal
c.Find the mass of the acidic solution

Answers

Answer:

it is a poem

Explanation:

What are cell products? Do you think they should be included in characteristics of life? Why or why not?

Answers

Answer:

Cell products are the products produced by the cell organelle and are not a characteristic of life on their own as they can not perform all the essential functions and processes.

Cell products in cell biology are the products that are produced by various cell organelles such as the Golgi body and these products are part of the cells and help cells to perform specific functions.

The characteristics of life are the traits that are shown by all organisms that are:

Cellular organization,

the ability to reproduce,

growth & development,

energy use,

homeostasis,

response to their environment,

the ability to adapt.

Thus, the cell products are manufactured by cell organelles and do not consider characteristics of life as the cell is the unit of life.

Learn more about characteristics of life:

brainly.com/question/21604853

Cell products are those products formed by the cell organelle. The characteristics of life should include cell products.

What are cell products?

Cell products are produced by various cell organelles like the Golgi body and these products help cells to perform specific functions and are part of the cells.

The characteristics of life shown by all organisms are made of cell or cell products, growth & development,  the ability to reproduce energy use, response to their environment, maintain homeostasis, and the ability to adapt.

A cell is the basic or building unit of structure and function of all living organisms. All living organisms are made of cells or cell products (by cells).

Thus, cell products should be included in the characteristics of life.

Learn more about cell products, here:

https://brainly.com/question/801747

#SPJ2

1. Are all responses to the environment immediately obvious? Be specific and explain your reasoning.
2. Explain the concept of homeostasis. Give an example.
3. At what level does life evolve?

Answers

homeostasis means "steady state". Homeostasis describes how the body regulates its process to keep its internal conditions as stable as possible. Homeostasis is necessary because human cells are efficient but very demanding.

Yes because that is the 3

Please help 20 points!
What is the thermocline?

Question 10 options:

a slope in the ocean


an instrument for measuring temperature in the ocean


a zone of rapid temperature change between the warm surface waters and the cooler deep waters


the warmer upper layer of the ocean

Answers

“A zone of rapid temperature change between the warm surface waters and the cooler deep waters” answer C

Good luck :)
Answer c if that’s the answer you are looking for :)

can someone help me with it?

Answers

Answer:

low average wind speeds

Answer:

Honestly, I think its the first one, many turbines

Which statement about living things and their environment is true?

Answers

Answer:

Which statement about living things is true?

All living things are made of cells, use energy, respond to stimuli, grow and reproduce, and maintain homeostasis

Explanation:

Answer:

cells, use energy, respond to stimuli, grow and reproduce, and maintain homeostasis

Explanation:

One city is located north of the equator and experiences average rainfall and warm temperatures. Another city is located exactly the same distance from the equator, but south. How will these two climate areas be the same or different?

The temperature and precipitation will both differ.
The temperature and precipitation will be similar.
The temperature will differ but the precipitation will be the same.
The precipitation will differ but the temperature will be the same.

Answers

Answer:

Temperature gets warmer and precipitation increases

Explanation:

...pretty sure i researched it to verify

Answer: It's is not c or d

Explanation: I can not find the correct answer it will differ between A and B



SORRY I COULDN'T HELP MORE

Which statement describes the nutrient cycle?
the movement of nutrients within all soil layers that allow plants to grow and seeds to germinate
the movement of nutrients from the physical environment into living organisms and back again
the movement of the three non-mineral nutrients that are absorbed through the soil
the movement of nutrients within plants that allows them to conduct photosynthesis

Answers

Answer:

This Soils and Plant Nutrients Chapter from the Extension Gardener Handbook examines the physical and chemical properties of soil

Answer:

i have no clue tell me

Explanation:

Which statement describes the nutrient cycle?

the movement of the three non-mineral nutrients that are absorbed through the soil

the movement of nutrients within all soil layers that allow plants to grow and seeds to germinate

the movement of nutrients within plants that allows them to conduct photosynthesis

the movement of nutrients from the physical environment into living organisms and back again

At what point on the roller coaster do the riders have the greatest amount of potential energy?

Point A.

Point C.

Point B.

Point D.

Answers

Answer:

Point C

Explanation:

Point C has the greatest potential energy because it is at that point that the riders will have maximum height

Answer:

C. potential energy happens when a object is still/not moving

Please help this is the last question

Answers

Answer:

Hummingbirds are attracted to bright colors.

Explanation:

Because they have a greater concentration of cone cells in the retina of their eyes making them sight bright colors more clearly and vibrantly.

Hummingbird are attracted to bright colors

Neutron stars are incredibly dense. Describe a neutron star in terms of a sugar cube.

Answers

neutron star, any of a class of extremely dense, compact stars thought to be composed primarily of neutrons. Neutron stars are typically about 20 km (12 miles) in diameter. Their masses range between 1.18 and 1.97 times that of the Sun, but most are 1.35 times that of the Sun.

How was sending your light and sound messages similar to the way that digital messages are sent?

Answers

Answer:

Morse code can communicate letters and numbers using light or sound. Sailors on ships can flash lights using Morse code to send messages from one ship to another. Morse code is a way to communicate over distances. Morse code can communicate letters and numbers using light or sound.

Isabel pushes a toy car, giving it kinetic energy. When this happens, what happens to the energy in her arm?

A) The energy in her arm increases.

B) The energy in her arm is destroyed.

C) The energy in her arm decreases.

D) The energy in her arm stays the same.

Answers

Answer:

c the energy in her arn decrease

C the energy in her arms decreases. if you think about it, after you push something your arm will slow down during the push even if it is something that is lightweight. it causes you to exert more energy which would decrease the amount left in your arm.

i need help with this

Answers

1. is prophase, chromatid in the nuclear envelope disappears2. metaphase, all the genetic material is condensing into chromosomes 3. anaphase, chromosomes move to opposite sides of the circle 4. telophase, the final phase two nuclei are formed

(GIVING BRAINLYIST) How does temperature and precipitation change as you increase in elevation?

Temperature gets warmer and precipitation increases.
Temperature gets cooler and precipitation increases.
Temperature gets warmer and precipitation decreases.
Temperature gets cooler and precipitation decreases.

Answers

Answer:

Temperature gets cooler and precipitation increases.

Explanation:

As average temperatures at the Earth's surface rise, more evaporation occurs, which, in turn, increases overall precipitation. … In addition, higher temperatures lead to more evaporation, so increased precipitation will not necessarily increase the amount of water available for drinking, irrigation, and industry

Higher elevations cause temperatures to drop because the higher up in the atmosphere you go, the colder it gets due to air pressure, in turn causing precipitation to freeze, creating snow. Lower elevations are a lot warmer because the air pressure is not as pressurized causing the temperature to be warmer

Answer:

Temperature gets colder and precipitation decreases

Explanation:

You move farther away from the very hot core of the earth, and your going above the clouds so no rain

what can you add to play-doh to make it strech

Answers

Answer:

Cornflower or Cornstarch

Cornflower or Cornstarch. These substances make the play-doh softer slowing it to stretch. Hope it helps.

Isabel pushes a toy car, giving it kinetic energy. When this happens, what happens to the energy in her arm?
A) The energy in her arm increases.

B) The energy in her arm is destroyed.

C) The energy in her arm decreases.

D) The energy in her arm stays the same.

Answers

Answer:

c the energy in her arm decrease

Answer:

it's either C or D try C

srry if im wrong

Is it true or false that some methods of transmitting information are more effective than others?

Answers

Answer:

Yes.

Explanation:

Using a cellphone is more effective than a typewriter.

What evidence do scientists have to support the big bang theory as the origin of the universe?

Answers

Explanation:

Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.

Answer:

Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.

Explanation:

Which objects have kinetic energy?

Choose all that apply:

A) A basketball rolling on the ground.

B) A basketball sitting on the ground.

C) A basketball falling toward the ground.

D) A basketball sitting on a high shelf.

Answers

the answer is a and c
the answer would have to be a and c

can someone help me with it??

Answers

Answer:

C. Kinetic Energy

Explanation:

It should be option three

Remember, Resistance = Voltage/Current

How much resistance allows a 6 V battery to produce a current of 0.006 A?


a.) 1000 ohms
b.) .036 ohms
c.) 100 ohms
d.) 0.36 ohms

Answers

A) 1000 Ohms

This question is asking us to find the resistance (Ohms) of a circuit. 6V/0.006A = 1000 Ohms. :)

PLEASE HELP! Punnett Square Practice Fill out each Punnett square based on the information in the problem. Then write in the phenotype for each genotype and the probability of its occurrence. Let's do the first one together. (Pictures of questions linked below)

Answers

I attached the edited photos
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