1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sliva [168]
3 years ago
7

A new penny has a mass of 2.49 g and a volume of 0.349 cm3. Is the penny made of pure copper?

Chemistry
1 answer:
velikii [3]3 years ago
7 0
Yes it is. Copper is the same mass and volume. Plus all pennies are made of copper
You might be interested in
Which of the following best describes the motion of the particles in a piece of steel?
sergejj [24]
<span>Steel is a solid at standard temperature and pressure conditions. For a solid, the particles are found to be oscillating about a fixed point. However, steel is a metal so this holds true for the positively charged nuclei of the particles. Just like any other metal, the electrons are free to move about, allowing steel to exhibit its properties such as heat conduction and electricity conduction. The reason the positive particles are fixed in place is because the intermolecular forces are very strong in solids, the strongest out solids, liquids and gases.</span>
6 0
3 years ago
If you know that lithium reacts strongly with oxygen in a 2:1 ratio, which of
Aneli [31]

Answer:

Same as lithium

Explanation:

Lithium and Ceaseum both are group one elements i.e alkali metals

So they have same chemical properties almost

Hence Ceaseum would react with oxygen in 2:1 ratio

7 0
2 years ago
On the fahrenheit scale, at what temperature does water boil? a. 451°f b. 264°f c. 212°f d. 100°f
taurus [48]

The temperature that water boils on the fahrenheit scale is c. 212°f.

<h3>What is Temperature conversation?</h3>

Temperature conversation is a way of converting a temperature from a unit to another using conversation scale.

Therefore, on fahrenheit scale water boils at  212°f which is equivalent to 100°C on the Celcius scale.

Learn more about Temperature conversation at;brainly.com/question/23419049

#SPJ4

5 0
2 years ago
What does an embryo do in a seed
AnnZ [28]

Answer:

The embryo, endosperm, and seed coat are the three major parts of a seed. An embryo is the young multicellular organism formed before it emerges from the seed. A seed is an embryonic plant, which stores food and is enclosed in a protective outer covering, which give rise to a new plant.

8 0
2 years ago
What’s the partial pressure of carbon dioxide in a container that holds 5 moles of carbon dioxide, 3 moles of nitrogen, and 1 mo
satela [25.4K]

Answer:

p

(

CO

2

)

=

0.58

atm

Explanation:

p

(

CO

2

)

=

Total pressure

⋅

Mole fraction of CO

2

=

1.05

⋅

5

5

+

3

+

1

=

1.05 ⋅ 5/9 = 0.58 atm

Explanation:

7 0
3 years ago
Other questions:
  • which of the following substances is least able to cross the blood-brain barrier.)a. waterb. sodium ionsc glucosed. white blood
    7·1 answer
  • Does adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water to the same extent, a lesser extent, or a greater e
    9·1 answer
  • An open-minded scientist does all of the following except A. think creatively to design experiments. B. accept new ideas that he
    14·1 answer
  • Thomas has 235 grams of K2S in the chemistry lab. How many atoms of potassium (K) are in 235 grams of the compound?
    5·1 answer
  • What happens when an acid reacts with a metal such as magnesium?
    12·1 answer
  • According to the table, what was the hiker’s total displacement?
    15·2 answers
  • The mass number of Bromine-81 is
    12·1 answer
  • About the girlfriend stuff my brother is lonely. So he is trying to get a gf
    8·2 answers
  • The _____shows you how many molecules are present in the reaction.​
    13·1 answer
  • What is the pH of the solution obtained during the reaction of sodium with water?<br> 1;3;7;14
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!