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2 years ago

Identify the examples in which Sam interacts only with natural resources.

Chemistry

2 answers:

Elina [12.6K]2 years ago

7 0

Answer:

He took a deep breath and splashed some water on his face.

Explanation:

I took the test on Edmentum.

AlladinOne [14]2 years ago

3 0

Answer: He took a deep breath and splashed some water on his face.

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In a previous problem, the empirical formula of a compound of phosphorus and oxygen was found to be p2o5. experimentation shows

agasfer [191]

The empirical formula for the compound is - P₂O₅
the empirical formula is the simplest ratio of whole numbers of components in a compound.
molecular formula is the actual ratio of components in a compound.
we have to first find the number of empirical units in the molecular formula
molecular mass - 283.89 g/mol
mass of empirical formula - 283.8 g
number of empirical units - 283.89 g/mol / 283.8 g
number of empirical units - 1.000
therefore empirical formula = molecular formula
molecular formula - P₂O₅

3 0

2 years ago

WHAT IS NORMAL MUSCLE PH

larisa [96]

The skeletal muscle ph is typically 7.15

8 0

2 years ago

In a study of the following reaction at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0

sp2606 [1]

Answer:

The value of $K_p$ for this reaction at 1200 K is 4.066.

Explanation:

Partial pressure of water vapor at equilibrium = $p^o_{H_2O}=15.0 Torr$

Partial pressure of hydrogen gas at equilibrium = $p^o_{H_2}=?$

Total pressure of the system at equilibrium P = 36.3 Torr

Applying Dalton's law of partial pressure to determine the partial pressure of hydrogen gas at equilibrium:

$P=p^o_{H_2O}+p^o_{H_2}$

$p^o_{H_2}=P-p^o_{H_2O}=36.3 Torr- 15.0 Torr = 21.3 Torr$

$3 Fe(s) 4 H_2O(g)\rightleftharpoons Fe_3O_4(s) 4 H_2(g)$

The expression of $K_p$ is given by:

$K_p=\frac{(p^o_{H_2})^4}{(p^o_{H_2O})^4}$

$K_p=\frac{(21.3 Torr)^4}{(15.0 Torr)^4}=4.066$

The value of $K_p$ for this reaction at 1200 K is 4.066.

6 0

2 years ago

Match each element to the number of electrons in its valence shell.

irinina [24]

Answer:

C: 4

H: 1

Mg: 2

O : 6

Explanation:

You can quickly find out the number of valence electrons by looking at where the element is on the periodic table and referring to the table that is attached.

6 0

4 months ago

Question 2 Unsaved Which of the following chemical formulas shows a covalent compound? a)CO2 b)MgO c)NaCl d)HBr

zzz [600]

It would be D
Because a covelant compound forms when 2 non metal atoms bond

6 0

3 years ago

Read 2 more answers