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3 years ago

Heart, 5 stars, and Brainiest if right! Answer needed ASAP PLEASE!

Chemistry

1 answer:

iren2701 [21]3 years ago

5 0

Answer:

The answer is B. balanced forces

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Is na=na+ reduced or oxidized

Sonbull [250]

Answer:

oxidized

Explanation:

Each sodium atom loses an electron to form a sodium ion.

8 0

3 years ago

A certain phospholipid molecule contains two fatty acid chains of eight carbon atoms each having no carbon-carbon double bonds i

larisa [96]

Answer:

Here's what I get

Explanation:

The fatty acids form ester C-O bonds with the OH groups of glycerol and the phosphoric acid forms phosphate P-O bonds.

The phosphate also forms P-O ester linkages with the OH groups in other alcohols such as choline.

The structure below shows the phospholipid with two saturated C₈ fatty acids and the phosphate group.

5 0

3 years ago

Determine the quality of a two-phase liquid-vapor mixture of (a) H.O at 100°C with a specific volume of 0.8 m /kg. (b) Refrigera

Paul [167]

Answer:

a) 0.478 4

b) 1.45 × 10⁻⁶

Explanation:

A two phase liquid-vapor mixture

a) Given:

Temperature of H.O = 100°C

Specific volume of mixture, v = 0.8

now, we know

The specific volume of water at 100°C, vf = 0.001043 m³/kg

and,specific volume of steam At 100°C , vg = 1.671 m³/kg

also,

Specific volume, v = [ vf + x × (vg - vf ) ]

here, x is the quality

therefore, we get

0.8 = 0.001043 + [ x × (1.671 - 0.001043) ]

0.798957 = x × 1.669957

x = 0.478 4

b) Temperature of refrigerant = 0°C

Specific volume of refrigerant, v = 0.7721 cm³/g = 0.7721 × 10⁻³ m³/kg

Specific volume of fluid, vf = 7.72 × 10⁻⁴ m³/kg

Specific volume of gas, vg = 0.06930 m³/kg

Now,

Specific volume of two-phase mixture, v = [ vf + x × (vg - vf ) ]

on substituting the values in the above equation, we get

0.7721 × 10⁻³ = 7.72 × 10⁻⁴ + [ x × (0.06930 - 7.72 × 10⁻⁴ ) ]

x = 1.45 × 10⁻⁶

4 0

3 years ago

An atom has the following electron configuration.

otez555 [7]

Explanation:

10 valence electron are there

8 0

3 years ago

Can someone help me pls?

Vanyuwa [196]

Answer:

Lithium is incorrect (c)

4 0

3 years ago