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emmasim [6.3K]
3 years ago
7

Will give brainliest

Chemistry
1 answer:
slamgirl [31]3 years ago
3 0
I will help you with answering this question.
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Which of Graphs 1 correctly represents the relationship between the pressure and volume of a gas?
Alborosie

Answer:

D

Explanation:

pressure is inversely proportional to gas volume

4 0
2 years ago
The blood cells that directly attack germs are: *​
irga5000 [103]

Answer:

lymphocytes

Explanation:

it consists of the b and the t cells

4 0
3 years ago
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The mass of a solid substance is 21.112 g. If the volume of the solid substance is 19.5 cm3, calculate the density of the substa
Ostrovityanka [42]

Answer:

ρ = 1.08 g/cm³

Explanation:

Step 1: Given data

Mass of the substance (m): 21.112 g

Volume of the substance (V): 19.5 cm³

Step 2: Calculate the density of the substance

The density (ρ) of a substance is equal to its mass divided by its volume.

ρ = m / V

ρ = 21.112 g / 19.5 cm³

ρ = 1.08 g/cm³

The density of the substance is 1.08 g/cm³.

6 0
3 years ago
In an electrolytic cell, the magnitude of the standard cell potential is the:______
melamori03 [73]

Answer:

a. minimum voltage that must be supplied for a redox reaction to occur

c. always equal to Eanode - Ecathode

Explanation:

In an electrolytic cell;  The electromotive force(the maximum standard potential difference) of the cell formed by the system is defined as the standard electrode potential of the right handed electrode minus the standard electrode potential of the left hand electrode. (i.e \mathbf{E^{\theta}_{cell}=E_{anode} - E_{cathode}} )

As we all known that the process by which chemical energy is being converted to electrical energy is called the Electrochemical cell. It consists of two half cells , an oxidation half cell reaction and a reduction half-cell reaction.The overall redox reaction results in a flow of electrons in an electric current which is produced by a minimum voltage.

Therefore, option a and c are both correct.

6 0
3 years ago
A. What was the pH change when HCI was added to tap water?
Oxana [17]

Answer:

See below.

Explanation:

a. The pH would decrease.

b. An acid.

c. The pH would increase.

d. A base.  More accurately an alkali ( which is a soluble base).

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3 years ago
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