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Mrrafil [7]
3 years ago
11

A student fires a bow and arrow in gym class and all his arrows land close to each other, but not on the bullseye. This student

could be said to be
Chemistry
1 answer:
dimulka [17.4K]3 years ago
4 0
A student fires a bow and arrow in gym class and all his arrows land close to eachother but not on the bullseye. this student could be said to be:

precise but not accurate

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A flashbulb of volume 2.70 mL contains O2(g) at a pressure of 2.30 atm and a temperature of 30.0 °C. How many grams of O2(g) doe
Sholpan [36]
P = 2.30 atm

Volume in liter = 2.70 mL / 1000 => 0.0027 L

Temperature in K = 30.0 + 273 => 303 K

R = 0.082 atm

molar mass O2 = 31.9988 g/mol

number of moles O2 :

P * V = n * R* T

2.30 * 0.0027 = n * 0.082 * 303

0.00621 = n * 24.846

n = 0.00621 / 24.846

n = 0.0002499 moles of O2

Mass of O2:

n = m / mm

0.0002499 = m / 31.9988

m = 0.0002499 * 31.9988

m = 0.008 g
3 0
3 years ago
Please help as soon as possible please and thank you.
HACTEHA [7]

Answer:

The answer is A. I took the test today.

Explanation:

8 0
3 years ago
What is the mass of the hydrogen atoms in 1 mole of water
Katen [24]

<u>Answer:</u>

2.0158 grams

<u>Explantion:</u>

We are to find the mass of the hydrogen atoms in 1 mole of water.

We know that the formula of water is: H_2O

We can see, from the above mentioned formula, that water has 2 hydrpgen atoms.

From the periodic table, we get to know that Hydrogen has an atomic mass of 1.00794 grams.

As there are 2 atoms of hydrogen in water so 2 \times 1.00794 = 2.0158 grams is the answer

3 0
3 years ago
Read 2 more answers
Rank the following in terms of increasing ionization energy: Sulfur, oxygen, hydrogen, and fluorine.
Naily [24]

Answer:

Ranked from lowest to highest:

Sulfur - 999.6 kJ/mol

Hydrogen - 13.5984 kJ/mol

Oxygen - 13.6181 kJ/mol

Fluorine - 17.4228 kJ/mol

3 0
2 years ago
How many molecules of aspartame are present in 1.00 mg of aspartame?
kobusy [5.1K]

Answer:

0.2 x 10^19

Explanation:

5 0
3 years ago
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