Unknown element X combines with oxygen to form the compound XO2. If 44.0 grams of element X combines with 8.00 grams of oxygen, what is the atomic mass of element X?A. 16 amu
B. 44 amu
C. 88 amu
D. 176 amu
E. 352 amu

Answer:

C

Explanation:

-log(0.028)=1.55

Answer:

ph =-log (28 x 10^-2)

= -(log 28 +log10^-2) ie using indices

= -(1.44+(-2) )

=-(-0.56)

= 0.56

=approximately (1) ans

The answer is

OSHA standards appear in the Code of Federal Regulations (CFR) and was then broken down into two parts.

The explanation:

OSHA standards are rules that describe the methods that employers must use to protect their employees from hazards. There are OSHA standards for Construction work, Maritime operations, and General Industry, which is the set that applies to most worksites. These standards limit the amount of hazardous chemicals workers can be exposed to, require the use of certain safe practices and equipment, and require employers to monitor hazards and keep records of workplace injuries and illnesses

It contains standards to ensure a comfortable and high quality research tools like the databases. These standards are to be strictly monitored to ensure  the safety of workers.

Answer:

A. Q = Keq

B. Equilibrium quantities of reactants and products

C. Q > Keq

D. System will shift toward reactants

E. Overabundance of reactants

F. System will shift toward products

Here are all the answers :)

Final answer:

To fill in the table about equilibrium, if Q < Keq the reaction will move right (produce more products), if Q > Keq it will move left (produce more reactants), and if Q = Keq the system is at equilibrium with no net change.

Explanation:

To complete the first row in the table about a system at equilibrium, we need to fill in the missing information based on the reaction quotient (Q) and the equilibrium constant (Keq).

For a system at equilibrium, not only is Q = Keq, but also the change in Gibb's free energy (ΔG) is zero. This relationship can be represented as 0 ΔG° + RT ln K at equilibrium.

Answer:

Chloroplast

Explanation:

Answer: The Sun is present in the center of solar system whose features are color, mass and texture.

Explanation:

Our solar system consists of one star and 8 planets. The star is present in our solar system is the Sun and due to this star only, our solar system is named as such.

The planets present in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

These planets revolve around the star which is present at the center of the solar system.

Three physical features of Sun are:

1. Color: The color of Sun is yellow.
2. Mass:  The mass of the Sun is
3. Texture: Due to the convectional currents, the texture of the whole surface of sun is granular.

Hence, the Sun is present in the center of solar system whose features are color, mass and texture.