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Aleks04 [339]
3 years ago
5

How many significant digits are in the number 699.06133000?

Chemistry
1 answer:
Nataly [62]3 years ago
4 0
There are 7 signifigant figures in this number!
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viktelen [127]

Answer:

HmmmmmmmmmmI think the answer is 69

3 0
3 years ago
Read 2 more answers
Three identical flasks contain three different gases at standard temperature and pressure. Flask A contains CH4, flask B contain
erastovalidia [21]

Answer:

FLASK B WHICH CONTAINS CO2 HAS THE HIGHEST NUMBER OF MOLECULES AS IT CONTAINS THE HIGHEST MOLECULAR MASS OF 44 G/MOL.

Explanation:

Flask A contains CH4

Flask B contaims CO2

Flask C contains N2

To know the flask containing the largest number of molecules, we find the molar mass of the molecules in the flask and the largest is the one with the highest number of the relative molecular mass.

Molecular Mass of CH4 (C = 12, H =1) = ( 12 + 1*4) g/mol

= 16 g/mol

Molecular mass of CO2 (C= 12, 0= 16) = (12 + 16*2) g/mol

= 12 + 32 g/mol

= 44 g/mol

Molecular mass of N2 (N=14) = 14 * 2 g/mol

= 28 g/mol

Hence, the flask with the largest number of molecules is the flask with the highest relative molecular mass. The highest molecular mass is 44 g/mol and it is for the gas CO2 in Flask B.

So therefore, Flask B has the highest number of molecules in it.

4 0
3 years ago
What is combustion and how does it affect the carbon cycle?
kumpel [21]
Combustion is burning and that usually produces carbon in the reaction adding it to the atmosphere
3 0
3 years ago
An architect wants to design a solar house in the northern hemisphere. For maximum, which side of the house should have the most
Natalija [7]

Hello!! My answer would be that they should add the solar panels that faces the south. Since the sun rises in the east and sets in the west, the south portion would get both sunlight from the east and west sides. I hope this helps!!

3 0
3 years ago
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According to the periodic table, carbon has an atomic mass of 12.011 u. This indicates that the most abundant isotope of carbon
julsineya [31]
Since the atomic mass is an average of the masses of all isotopes of that element, you have to consider which isotope is most abundant. In this case, the atomic mass is closest to twelve, so the most abundant isotope of carbon is Carbon 12.
7 0
3 years ago
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