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
Alina [70]
3 years ago
5

Please answer!

Chemistry
1 answer:
evablogger [386]3 years ago
5 0
1.) A compound is a substance that originates from two or more separate elements. It shares some similarities with a mixture.

2.) A compound has quite different properties from which it was formed. It also cannot be separated easily. Compounds are formed by chemical reactions.

3.) A pure substance has a constant composition and has consistent properties. It can be a compound or an element, but its composition is constant.

Hope this helps. :)
You might be interested in
Which has greater internal energy, 1 kg of water or 1 g of water, at the same temperature?
Natali5045456 [20]

1kg of water has greater internal energy compared to 1g of water because 1kg of water has more mass.

4 0
3 years ago
Tellurium is a silvery-white, brittle element. Its electrical conductivity varies, but I’m creases slightly with exposure to sun
Lina20 [59]
B) Tellurium is a metalloid. Metalloids in some classifications are also or alternatively called “semi-metals.”
5 0
3 years ago
Read 2 more answers
A 28.5 gram piece of iron is added to a graduated cylinder containing 45.5 mL of water. The water in the cylinder rises to the 4
yan [13]

7.91 g/ml is the density of the iron piece of 28.5 gms.

Explanation:

The density of a substance is defined as the volume it occupies.  It tells the matter present in a substance.

The density is mass per unit volume and is denoted by p.

The formula for density is given by:

density (p) = \frac{mass}{volume}

Data given is :

mass= 28.5 grams

V1 = 45.5 ml

V2= 49.1 ml

The initial volume of water was 45.5 ml, when iron piece of 28.5 grams was added the final volume was 49.1 ml.

Putting the values in the equation of density

p = \frac{28.5}{49.1-45.5}

p = 7.91 g/ml

Since iron is a dense material it will occupy less volume

4 0
3 years ago
I need help with number two too?
KIM [24]

1. 20s, 22s, and 30s... height is the highest.

2. 34s, 38s, and 41s..... height is at its lowest.


i could be wrong.... but i tried.

8 0
3 years ago
What is the difference between mass and weight?
Olin [163]

Explanation:

The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

7 0
3 years ago
Other questions:
  • How many moles of Carbon are in 2.4 moles of C₆H₆
    13·1 answer
  • Consider the following equilibrium system involving SO2, Cl2, and SO2Cl2 (sulfuryl dichloride): SO2(g) + Cl2(g) ⇌ SO2Cl2(g) Pred
    9·1 answer
  • A popular kitchen appliance
    15·1 answer
  • Decomposition reaction of Ag3N
    9·1 answer
  • Why are there two high tides a day about 12 hours apart?<br>​
    9·1 answer
  • The periodic table tells you how many grams are in a mole of atoms of any
    11·1 answer
  • A mineral is a naturally occurring solid with a regular, repeating structure. Please select the best answer from the choices pro
    13·2 answers
  • If an ice cube melts at 0ºC but water also freezes at 0ºC, what is the difference between melting and freezing in terms of…….
    7·1 answer
  • How many total atoms are in ammonia, NH4OH ?
    13·1 answer
  • Given the following equation: 2h20=2h2+02 how many grams of o2 are produced if 3.6 grams of h20 react?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!