All categories

2 years ago

How does an atom differ from a molecule? In what ways are they similar?

Chemistry

1 answer:

Yuki888 [10]2 years ago

5 0

Explanation:

Difference between the two:

Atoms are defined as the smallest particle of a chemical element that exists. They are made up of protons, electrons and neutrons. Elements have similar kind of atoms present in them while compounds have different type of elements present in them.

Molecules are formed when two or more atoms of similar or different kinds bond together. For Example: $H_2O,N_2$ etc...

Similarity between the two:

A pure substance is defined as the substance which is formed by same or different type of atoms which are chemically combined in a fixed ratio by mass. Atoms and molecules are considered as pure substances.

You might be interested in

Geckos and some other animals can climb smooth surfaces. Which of these explanations of this

Marrrta [24]

Answer:

The gecko's feet have tiny suction cups on them that stick to the surface.

4 0

2 years ago

Read 2 more answers

Night vision glasses detect

lana [24]

night vision glasses detect energy

5 0

3 years ago

What is the overall charge of a Aluminum atom that loses 3 electrons

Rudik [331]

It’s charge was neutral due to the equal number of protons and electrons. when it becomes an ion it loses 3 electrons leaving behind only 10. the answer is 10. the equation is +13 +(-10)=+3

8 0

2 years ago

Ling decided to do a science project on exercise. She wanted to find out how long it takes for a person's heart rate to slow dow

forsale [732]

C- a persons heart rate slows down after 5 minutes.

8 0

3 years ago

A volume of 125 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If

VMariaS [17]

Answer:

41.9 g

Explanation:

We can calculate the heat released by the water and the heat absorbed by the steel rod using the following expression.

Q = c × m × ΔT

where,

c: specific heat capacity

m: mass

ΔT: change in temperature

If we consider the density of water is 1.00 g/mol, the mass of water is 125 g.

According to the law of conservation of energy, the sum of the heat released by the water (Qw) and the heat absorbed by the steel (Qs) is zero.

Qw + Qs = 0

Qw = -Qs

cw × mw × ΔTw = -cs × ms × ΔTs

(4.18 J/g.°C) × 125 g × (21.30°C-22.00°C) = -(0.452J/g.°C) × ms × (21.30°C-2.00°C)

ms = 41.9 g

3 0

2 years ago