CHEMISTRY MIDDLE SCHOOL

3. Mr. Hill has 27 students in his classand Mr. Chang has 24 students in his
class. Both classes will be divided into
equal sized teams within their own
classes. What is the greatest number of
students that can be on team so that all
the teams are an equal number?​

Answers

Answer 1
Answer:

Answer: the answer for mr hills class is 13 and the answer for mr chang is 12

Explanation: The thing that i did was just divide the numbers by 2 and the number is how many teams can be formed at once in both classes

Answer 2
Answer: Just dived both numbers by two

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When Kay added 30 g of hydrochloric acid (HCl) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZnCl2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g?A) 2 g of zinc disappeared. B) 2 g of hydrogen gas were produced. C) Kay didn't correctly mass the precipitate. D) Kay didn't collect all of the precipitate.
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List three events that would cause beaches to erode

Answers

1. they do not have enough sand

2. deepening and widening of river channels might cause deposition of sand in the channel, rather than on coastal lands

3. attempts to stop erosion sometimes makes it worse

Which process transfers heat when particles collide in a solid

Answers

The correct answer is conduction. Radiation involves heat moving through space (I think as light but I could be wrong) and convection involves heat transferring through the movement of a fluid such as gas or liquid.

I hope his helps.  Let me know in the comments if anything is unclear.

if there are 14 chromosomes in pea plant cells,how many chromosomes are present in a sex cell of a pea plant?

Answers

If there are 14 chromosomes in pea plant cells, there are 7 chromosomes present in a gamete cell of a pea plant.

What are chromosomes?

Chromosomes are thread like structure which are present in pair.

The chromosomes contain re genes and characters of the person.

The process of meiosis,  result in half of chromosome in the daughter cells.

Thus, there would be 7 chromosomes present.

Learn more about chromosomes

brainly.com/question/296477
there would be 7- this would be the process of meiosis, which would result in 4 haploid cells (each would have half the number of chromosomes as the parent (or 7), as meiosis is sex cell division) the other type of cell division is called mitosis and results in two daughter cells identical to the parent cell (2 cells, each with 14 chromosomes)

What is the formula for the conjugate base formed by the following acid
HCN

Answers

Answer:

HCN - Hydrogen cyanide The conjugate acid of CN- is HCN. HCN stands for hydrogen cyanide. The conjugate acids are a combination of a strong acid and a low base.

A student wants to increase the maximum amount of sugar that can dissolve in water. She crushes the sugar and then stirs it into the water. Does this work? Explain why or why not.

Answers

Answer:

The amount of sugar that can dissolve in water increase .

Explanation:

  • Energy, which is the capacity to do work or produce heat, affects the rate at which a solute will dissolve.
  • Breaking up, crushing or grinding a sugar cube before adding it to water increases the sugar's surface area.
  • The more surface area a solute has, the faster it will dissolve because more particles of the sugar can interact with the water.
  • This means the finer the sugar particles, the faster it will dissolve.
  • The sugar in the middle of a sugar cube is protected from the water by the sugar in the outer layers of the cube; the water has to go through those outer layers first.
  • But if you crush the cube into a powder, all of the sugar is exposed to the water at once.

The process of isotopes breaking down and emitting particles, such as alpha or beta, to form a new substance.

Answers

Answer: The process is called as nuclear decay process.

Explanation:

Nuclear reaction are defined as the reactions in which nucleus of an atom is involved.

Isotopes under decay process in order to attain stability.

Unstable isotopes known as parent isotopes undergo various decay processes to form stable isotopes known as daughter isotopes.

The various decay processes are:

  • Alpha decay: In this process, alpha particle is released.
  • Beta decay: In this process, beta decay is released.
  • Gamma decay: In this process, gamma decay is released.

Hence, the process is called as nuclear decay process.
This is called decay
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