3 years ago

Use dimensional analysis to make the following conversion: 2560 cm = _________m

Chemistry

1 answer:

Mazyrski [523]3 years ago

3 0

25.6 use dimensionlal analysis to make the following conversation

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5. In which group of elements do most atoms have completely filled s and p velence sublevels? A) halogens B) noble gases C) alka

ivanzaharov [21]

Noble Gases is the answer (please give me brainliest

4 0

3 years ago

Please help me I will give a brainleist to anyone who answers

tekilochka [14]

Answer:

Explanation:

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3 years ago

2. Calculate the mass of 3.47x1023 gold atoms.

lapo4ka [179]

3.47 x $10^{23}$ atoms of gold have mass of 113.44 grams.

Explanation:

Data given:

number of atoms of gold = 3.47 x $10^{23}$

mass of the gold in given number of atoms = ?

atomic mass of gold =196.96 grams/mole

Avagadro's number = 6.022 X $10^{23}$

from the relation,

1 mole of element contains 6.022 x $10^{23}$ atoms.

so no of moles of gold given = $\frac{3.47 X 10^{23} }{6.022 X 10^{23} }$

0.57 moles of gold.

from the relation:

number of moles = $\frac{mass}{atomic mass of 1 mole}$

rearranging the equation,

mass = number of moles x atomic mass

mass = 0.57 x 196.96

mass = 113.44 grams

thus, 3.47 x $10^{23}$ atoms of gold have mass of 113.44 grams

3 0

3 years ago

The Earth produces a magnetic field in which the magnetic are most concentrated at the North and South

BlackZzzverrR [31]

Answer: I have no idea what kind of question this is, but I'm assuming it's a true or false question, and this is true. Although the north-bound pole is south-seeking, a compass would eventually draw you to the North Pole.

Explanation:

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3 years ago

A dry cell produces_______ electricity.<br><br>A) static <br><br>B) current

ivolga24 [154]

Answer:

dude! it's static!

Explanation:

a dry cell can't function and is therefore static!

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3 years ago