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3 years ago

How many atoms in something determines it

1 answer:

Citrus2011 [14]3 years ago

7 0

The chemical formula for water is H2O which means that every molecule of water has 2 atoms of hydrogen (H) and one atom of oxygen (O). Here comes the key part. From the Periodic Table of Elements, one sees that one mole of hydrogen atoms weighs 1 gram while one mole of oxygen atoms weighs 16 grams.

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Sophia has $8 to spend on lunch. Does she have enough money for a sandwich, a drink, and a bag of chips?

aniked [119]

Answer:

unknown, because the cost of the sandwich, a drink and a bag of chips where not listed in the question

7 0

3 years ago

Hey do y’all know Micah gray?

Vikki [24]

Answer:

the warehouse leader at the legacy of cabinet company?

Step-by-step explanation:

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2 years ago

−7x − 13 = −48 Some one pls answer this

Oksanka [162]

Answer:

-7x -13= -48 (add 13 to both sides)

-7x = -35 (divide both sides by -7)

x= 5 (is your answer)

4 0

3 years ago

Read 2 more answers

tim is choosing between two cell phone plans that same amount of free minutes. Cingular plane charges 39.99 per month with addit

VMariaS [17]

Answer:

100 minutes

Step-by-step explanation:

Let

x ----> the number of minutes

y ----> the total cost of the plan

we know that

Cingular Plan

$y=0.45x+39.99$ -----> equation A

Verizon Plan

$y=0.40x+44.99$ -----> equation B

To find out how many additional minutes will it take for the two plans to cost the same

Solve the system of equations A and B

Solve by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is the point (100,84.99)

see the attached figure

therefore

For x=100 minutes

The cost for both plans is $84.99

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3 years ago

I will give you all stars⭐⭐⭐⭐⭐

Zielflug [23.3K]

Answer:

expain the problem beter

Step-by-step explanation:

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3 years ago