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3 years ago

Name two things in the lab that are for safety

Chemistry

1 answer:

Blizzard [7]3 years ago

5 0

Answer:

Safety goggles and chemical fume hoods

Explanation:

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Choose the most correct statement about metals

stellarik [79]

Answer:

C Metals are ductile, meaning they can be pulled into wires.

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3 years ago

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Powerful_____________________________ in nature, such as wind, temperature, and ice, can exert enough pressure to cause the wall

stich3 [128]

Answer:

I believe forces would be the word you are looking for.

Explanation:

I hope this is what you needed, have a great day! (;

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3 years ago

4) Calculate the heat needed to melt 40.0 g of ice at 0°C?

Sav [38]

A lot of heat like a lot no cap it’s gonna he a lot

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3 years ago

The table shows the number of charged subatomic particles in an ion.

Anarel [89]

Answer:

The ion will repel the substance because it has lost two electrons.

Explanation:

An ion is a charged specie. We can see from the question that the ion has twelve positive and ten negative particles.

If there are more positive particles than negative particles, then the ion is positively charged.

If the ion is positively charged, it will repel another positively charged particle because like charges repel while opposite charges attract.

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3 years ago

Part A Which of the following statements about chemical formulas is FALSE? Which of the following statements about chemical form

statuscvo [17]

Answer: Option (a) is the correct answer.

Explanation:

Subscript present in chemical formula of a compound represents the number of atoms of the element actually present in it.

For example, in $C_{7}H_{7}NO_{2}$ the subscripts present in it are 7, 7, 1, and 2.

A subscript is not responsible for determining the relative mass of each type of an atom because a subscript simply represents the number of atoms of each type of an element participating or combining with other atoms of a compound.

Thus, we can conclude that the statement subscripts represent the relative mass of each type of atom in the compound, is false.

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4 years ago