CHEMISTRY MIDDLE SCHOOL

When a solution is basic, the pOH is always less than
8, 14, 7

Answers

Answer 1

Answer:

Answer:

it should be greater than 7 but equal to or less than 14

Explanation:

greater than 8 okay

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Over a long period of time, a group of people were exposed to high degrees of UV radiation from the sun. While no one became sick immediately, doctors did predict that those exposed had an increased risk of cancer in skin cells. Which type of mutation will this exposure cause? A. acquired, harmful B. acquired, neutral C. inherited, beneficial D. inherited, neutral

What kind of ions do metals form

Answers

Answer: cations

Explanation:

Metals are defined as the elements which loose electrons to attain stable electronic configuration. If an atom looses electrons, it leads to the formation of positive ions known as cations.

For Example: Sodium looses 1 electron to form $Na^+$ ions.

Non-metals are defined as the elements which gain electrons to attain stable electronic configuration. If an atom gains electrons, it leads to the formation of negative ions known as anions.

For Example: Fluorine gains 1 electron to form $F^-$ ions.

Answer:

cations

Explanation:

metals are made of postively charged ions

How Do Clownfish Catch Their Food?

Answers

Clown fish get there food from anemone by eating by eating the algae

How is the telegraph you made like the one morse made?

Answers

it developed in the 1830s and 1840s by samual morse and other inventors, the telegraph revolutionized long-distance communication.

Answer:

it developed in the 1830s and 1840s by Samual Morse and other inventors, the telegraph changed long distance communication.

Explanation:

Using the time period, the ability to use telegraphs on moving trains came to be shortly after.

Tamara pours hot tea into a cold mug. A few moments later, she picks up the mug, and it is now warm.What is the main form of energy transfer involved in heating the mug?

Answers

Answer: Conduction

Explanation: MODES OF HEAT TRANSFER

Conduction: This type of heat transfer happens when there is direct contact between the two object.

Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas).

Radiation: This type of heat transfer happens when there is direct transfer of energy through space.

Thus as there is direct contact between the mug and the tea, the heat transfer occurs through conduction.

Conduction. Conduction is the transfer of heat through touch. The hot tea gave some heat to the cold mug by touching the mug, therefore it is conduction.

How large is the observable universe

Answers

Here goes the question with no exact answer, lol <3

Scientists tell us that the observable universe is about 90 light years but then I wonder how they calculated that because the universe is immense!

I'm sorry but I can't go deeper into explaining as that's a tough question.

What does it mean if an experiment is replicable ? Why is it important that experiment be replicable