All categories

3 years ago

How do substances change into different substances during chemical reactions

Chemistry

1 answer:

icang [17]3 years ago

6 0

Answer:

Chemical reaction are irreversible. Some of the example of chemical reaction are cooking, rusting, and burning. During a chemical reaction, the composition of substances changes and the particles rearrange to form a new substance. The new substance formed after chemical reaction of substance has different physical and chemical properties.

When a chemical reaction occur, the atoms or molecules of the substances change its physical and chemical properties such as while cooking of vegetable, the molecules of vegetable undergo changes in their properties and form a new substance which is different from the earlier.

You might be interested in

The modern periodic table is organized by?

IceJOKER [234]

B. Number of protons

7 0

3 years ago

Read 2 more answers

Help due today! No random answered I’ll report you!, answer in full sentences!:)

nalin [4]

1. First taking in light, then electron transport
2. A main fuel for your brain. Without it, your brain wouldn't function well. Yes, you need it.

4 0

3 years ago

What is the ph category of each of the following i need help plz

shepuryov [24]

1. base

2. neutral

3. acid

4. base

If this is what you meant, hope it helps

4 0

3 years ago

What is the mass of a 500.00 mL sample of seawater with a density of 1.025 g/mL?

iragen [17]

Answer:

Mass of seawater = 512.5 gram

Explanation:

Given:

Volume of seawater = 500 ml

Density of seawater = 1.025 g/ml

Find:

Mass of seawater

Computation:

Mass of seawater = Volume of seawater × Density of seawater

Mass of seawater = 500 × 1.025

Mass of seawater = 512.5 gram

7 0

4 years ago

a particular application calls for N2 g with a density of 1.80 g/L at 32 degrees C what must be the pressure of the n2 g in mill

baherus [9]

Answer:

1223.38 mmHg

Explanation:

Using ideal gas equation as:

$PV=nRT$

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = $62.3637\text{ L.mmHg }mol^{-1}K^{-1}$

Also,

Moles = mass (m) / Molar mass (M)

Density (d) = Mass (m) / Volume (V)

So, the ideal gas equation can be written as:

$PM=dRT$

Given that:-

d = 1.80 g/L

Temperature = 32 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T = (32 + 273.15) K = 305.15 K

Molar mass of nitrogen gas = 28 g/mol

Applying the equation as:

P × 28 g/mol = 1.80 g/L × 62.3637 L.mmHg/K.mol × 305.15 K

⇒P = 1223.38 mmHg

<u>1223.38 mmHg must be the pressure of the nitrogen gas.</u>

5 0

3 years ago

How do substances change into different substances during chemical reactions​

How do substances change into different substances during chemical reactions