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3 years ago

Science question down below

Chemistry

1 answer:

slavikrds [6]3 years ago

4 0

A. Reproduction

Birth is producing children just as they were which is REproduction

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What do elements in thr first two columns of the periodic table have in common?

maxonik [38]

The initial two columns of the periodic table make the s-square, and the components in this square share practically speaking that they have a tendency to lose electrons to pick up soundness.

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2 years ago

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If one were asked to choose between paper or plastic which would be chosen and which one would benefit the environment?

vekshin1

It would be plastic Becaus we can recreate things with plastic and other things that are recyclable. Since,we mostly cut down trees everyday for paper,not knowing that we are wasting natural resources, and destroying animal homes and food.

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3 years ago

How well can you apply Charles’s law to this sample of gas that experiences changes in pressure and volume? Assume that pressure

anzhelika [568]

Answer:

A: 384

B: 0.85

C: 1.1

D: 221

Explanation:

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2 years ago

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A. 6.07 x 10-15<br> How many significant figures are there in this equation

Harman [31]

Answer:

Explanation:

In scientific notation, the number of integers in the first part will always be the amount of significant figures.

For example,

1) 1.542505 x 10^17 =7 significant figures

1) 1.54 x 10^17 =3 significant figures

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3 years ago

What is used to determine the number of each atom in an ionic formula

ladessa [460]

Answer:

The charge carried by each ion (oxidation state of each atom)

Explanation:

If we have an ionic compound and we want to write its formula, we must first know the magnitude of charge on each ion (shown as oxidation state of the atoms involved) because the magnitude of charge on each ion is eventually crisscrossed and gives the subscript (number of atoms) for each atom in the formula.

For instance, let us write the formula of calcium bromide. Ca has a charge of +2 while Br has a charge of -1. If we exchange the charges and ignore the signs such that the crisscrossed charges form subscripts we can now write; $CaBr_{2}$ .

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2 years ago