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
nydimaria [60]
3 years ago
5

A solid object has a mass of 30 grams and a volume of 10 cm3.

Chemistry
2 answers:
german3 years ago
7 0
To find the density of an object, you need to use the equation: D = M/V. This is density equals mass over volume.

Mass: 30 g
Volume: 10 cm3

30/10 = 3 

Density: 3 g/cm3


tresset_1 [31]3 years ago
6 0

<u>Answer:</u> The density of the object is equal to 3g/cm^3

<u>Explanation:</u>

Density of an object is defined as the ratio of its mass and volume. The chemical equation representing density of an object is:

\text{Density of an object}=\frac{\text{Mass of an object}}{\text{Volume of an object}}

We are given:

Mass of an object = 30 grams

Volume of an object = 10cm^3

Putting values in above equation, we get:

\text{Density of an object}=\frac{30g}{10cm^3}=3g/cm^3

Hence, the density of the object is equal to 3g/cm^3

You might be interested in
A piece of string is found to be 35.9 meters long. How long is the string in inches?
Nady [450]

Answer: 1413.39 inches

Explanation:

<u>Formula for converting meters to inches</u>

Meters x 39.37 (roughly) = Value in inches

<u>Applying formula</u>

35.9 meters x 39.37 = 1413.39 inches (roughly)

3 0
2 years ago
There are three sets of sketches below, showing the same pure molecular compound (hydrogen chloride, molecular formula ) at thre
RideAnS [48]

Answer:

The correct answer is - option C.

Explanation:

Given: the melting point of HCl is

-114.8 °C, which suggests that below this temperature HCl will be solid.

and, since the boiling point of HCl is - 85.1 °C. It is also suggested that above this temperature HCl will be gas, Therefore.

Solid -114.8  - Ordered arrangement

Liquid -85.1c  - Less orderly arranged

Gaseous - Least orderly arranged

Thus, at —90 °C, HCl will be present 'in the liquid state,  At — 1 °C, HCl will be present in the gaseous state and at -129 °C, HCl will be present in the solid-state. So, the molecules will be organized in a more orderly manner .

Thus, the correct answer is - option C

8 0
4 years ago
What is the significance of the Galápagos Islands to the theory of evolution
Aloiza [94]
The importance of the Galapagos to Darwin theory is chances  Darwin discovered several species of finches that varied from island to island .
A big part of reason it is so famous is because of Darwin finches.
which are 12 <span>species ,also the Darwin theory is  only gradually accepted because people don't believe in them today</span>
3 0
3 years ago
Scientists observe that iron compounds are able to bind to nutrients in waterways experiencing eutrophication. Which change will
Anettt [7]

(1) Fewer microorganisms will grow on the surface of the lake if iron compounds are added to a lake with an overabundance of nutrients. Hence, option 1 is correct.

(2) Fracking means using water and chemicals at high pressure to open up fissures to access oil and gas resources. Hence, option 2 is correct.

<h3>What are microorganisms?</h3>

An organism that can be seen only through a microscope.

Iron is a natural capping agent which can enhance sediment P binding capacity, thus reducing P availability and shifting a lake from an algal to a macrophyte dominated state. Iron could, however, also impose toxic effects on the biota.

Fracking is the injection of a fluid at high pressure into an underground rock formation to open fissures and allow trapped gas or crude oil to flow through a pipe to a wellhead at the surface.

This technique is used in natural gas and petroleum production.

1) Fewer microorganisms will grow on the surface of the lake if iron compounds are added to a lake with an overabundance of nutrients. Hence, option 1 is correct.

(2) Fracking means using water and chemicals at high pressure to open up fissures to access oil and gas resources. Hence, option 2 is correct

Learn more about the microorganisms here:

brainly.com/question/6699104

#SPJ1

6 0
2 years ago
Given the reaction:CO2 + 6 H2O==&gt; C6H12O6 + 6 O2
kari74 [83]
For every 1 mole of C6H12O6, you need 6 moles of water. Multiply the 2.5 moles you are trying to make by the 6 of water you need, and 4) 15 is your answer.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which molecule could have an expanded octet? hno2 h2co3 h3po4?
    11·1 answer
  • Consider a triprotic acid like phosphoric acid or citric acid. which expression correctly describes the relative magnitudes of t
    11·1 answer
  • How did john dalton explain a chemical reaction using his atomic theory?
    7·1 answer
  • Calculate the mass of 2.50 mol of CH,OH(1). Show your work. Use the appropriate
    6·1 answer
  • HALP PLZ 50 points brainlest and thanks if u halp
    6·2 answers
  • PLEASE HELPPPPPPP:
    10·1 answer
  • I paid for help here but my questions are not being answered, I think I should delete this and try chegg
    8·2 answers
  • When seawater freezeswhat happens to the salt?
    9·1 answer
  • PLZ HELP!
    12·1 answer
  • When the motor has finished pulling the roller coaster car to the top of the very first hill, what moves the car down the hill?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!