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agasfer [191]
3 years ago
6

José and Laurel measured the length of a stick's shadow during the day. Without knowing the length of the stick, which of their

measurements would you ask José and Laurel to examine more closely?
Chemistry
1 answer:
vladimir1956 [14]3 years ago
6 0

Answer:

I think in the middle of the day because the sun isn't going down yet

Explanation:

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A student finds a container of gases in the laboratory classroom with a total pressure reading of 655 mmHg. The label on the con
Elena-2011 [213]

Answer:

70.8 mmHg

Explanation:

To find partial pressure of carbon dioxide we first find the mole fraction of carbon dioxide

n (carbon dioxide) = 5/44.01 g/mol = 0.11361 mol

n (Helium) = 3.75 g/4 g/mol = 0.9375 mol

The partial pressure of carbon dioxide will be the mole fraction of carbon dioxide multiplied by the total pressure

Partial pressure = 0.11361g/(0.11361g + 0.9375 g)* 655 mmHg

                          = 70.8 mmHg

6 0
4 years ago
State whether each of these statements is true or false. (a) a carbon–carbon triple bond is shorter than a carbon–carbon single
attashe74 [19]

Answer:

(a) a carbon–carbon triple bond is shorter than a carbon–carbon single bond.

The given statement is true.This because bond order in of (C-C) bond in triple bond is 3 whereas the bond order of (C-C) bond in single bond is 1. Higher the bond order shorter will be the bond length.

(b) There are exactly six bonding electrons in the oxygen molecule.

The given statement is false. This is because bond order present in oxygen molecule is 2 which means there are 4 bonding electrons in the oxygen molecule.

(c) the (C-O) bond in carbon monoxide is longer than the (C-O) bond in carbon dioxide.

The given statement is false.This because bond order in of (C-O) bond in CO is 3 whereas in CO_2 the bond order of (C-O) bond is 2. Higher the bond order shorter will be the bond length.

(d) The (O-O) bond in ozone is shorter than the (O-O) bond in oxygen.

The given statement is false. This is because bond order in of (O-O) bond in ozone molecule is 1.5 whereas in O_2 the bond order of (O-O) bond is 2. Higher the bond order shorter will be the bond length.

(e) The more electro-negative the atom, the more bonds it makes to other atoms.

The given statement is false. This is because atom with more electro-negative character. Since, they are highly electron rich atoms so they will tend to form less number of bonds with other atom.


8 0
3 years ago
Which is a example of a solution
Diano4ka-milaya [45]

Answer:

Salt water

Explanation:

3 0
4 years ago
What does the empirical formula of a compound describe?
lana66690 [7]
It is what form where all coeficients are made into the smallest whole numbers

example

2C+4HC=8HC could be simplified to
C+2HC=4HC (note: formula is not a liegit one, only for example)
8 0
3 years ago
Maksud frasa integrasi nasional​
lora16 [44]

Answer:

Adapun frasa INTEGRASI BANGSA atau INTEGRASI NASIONAL sendiri dimaknai dalam dua konteks yakni POLITIS dan ANTROPOLOGIS. Dalam konteks politis, Integrasi Nasional bermakna sebagai penyatuan berbagai macam kelompok sosial juga budaya ke dalam suatu kesatuan wilayah yang membentuk suatu identitas nasional.

Explanation:

3 0
3 years ago
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