CHEMISTRY MIDDLE SCHOOL

When temperature increases, what happens to the molecules in a chemical reaction?

Answers

Answer 1
Answer: They speed up and the reaction happens faster.
Answer 2
Answer:

Answer As it heats up, the molecules speed up and the reaction happens faster.

Explanation:

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How does the temperature of water affect its ability to hold oxygen?

Answers

Answer:The solubility of oxygen and other gases will decrease as temperature increases 9. This means that colder lakes and streams can hold more dissolved oxygen than warmer waters. If water is too warm, it will not hold enough oxygen for aquatic organisms to survive.

Explanation:

The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23. From this information, you can find the number of neutrons: 11 protons plus how many neutrons equals a mass number of 23? The number of neutrons would have to be the difference between 23 and 11, which is 12. This fact can be restated this way: 11 protons plus 12 neutrons equals a mass number of 23. For every proton in the nucleus, an electron revolves around the nucleus. Since 11 protons are in sodium, 11 electrons must be in sodium.The atomic number of the chlorine atom is 17. The atomic mass number can be estimated by rounding the atomic mass to 35. From this information, you can find the number of neutrons, protons, and the number of electrons.

1. How many neutrons are in the chlorine atom?
2. How many electrons are in the chlorine atom?
3. How many protons are in the chlorine atom?

Answers

Answer:

1. 18 neutrons

2. 17 electrons

3. 17 protons

Answer:

1. 18 neutrons

2. 17 electrons

3. 17 protons

Explanation:

Which device directly converts chemical energy into electrical energy?1) solar-powered calculator
2) wood-burning stove
3) battery-powered flashlight
4) wind-powered sailboat

Answers

number three is correct because the battery in the flashlight is made of chemicals and when you turn the flashlight on it turns into electrical. hope this helps.

What is the most important question to ask to determine whether a change is physical or chemical

Answers

The best question is WHAT and HOW

Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett squareshows the probability that 25 percent of offspring will be red-eyed males?

Answers

Answer:

Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive when two parents have the genotype of allele like XXi  XY in which the Xi will be the allele for the 25% of red eye color.

Explanation:

We know that punnet square is a diagrammatic representation to predict the result of cross as well as breeding experiment. This is being used for getting the probability of offspring with particular genotype. Based on the best possible answer if the two parents have the genotype of allele like XXi  XY in which the Xi will be the allele for the red eye color. The eye color gene is present in the X chromosome.

Answer:

A

Explanation:

The largest layer inside the earth is called

Answers

its called the mantle :))))))))))))
           It is the mantle; which includes the upper and lower mantle. It is also below the Earth's Crust; it also consists to be 2855km. It is also 35 KM below the Earth's surface.
Other Questions
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How many sig figs does the number 0.000203 have?
What is 9.72 moles of Cl atoms to grams? Showwork please!
Is it true oxygen is an excellent solvent that is capable of dissolving just about anything?