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
Ksivusya [100]
3 years ago
7

This diagram shows a marble with a mass of 3.8 grams (g) that was placed into 10 milliliters (mL) of water.

Chemistry
1 answer:
ryzh [129]3 years ago
3 0

Complete Question:

This diagram shows a marble with a mass of 3.8 grams (g) that was placed into 10 milliliters (mL) of water. Using the formula V M D = , what is the density of the marble?

(See attachment for full diagram)

Answer:

1.27 g/cm³

Explanation:

First, find the volume of rock:

Volume of rock = volume of water after rock was placed - volume of water before rock was placed

Volume of rock = 13 - 10 = 3ml

Density of rock = grams of rock per 1 cm³

Note: 1 ml = 1 cm³

Let x represent amount of rock per 1 cm³

Thus,

3.8g = 3 cm³

x = 1 cm³

Cross multiply

1*3.8 = 3*x

3.8 = 3x

3.8/3 = 3x/3

1.27 = x

Density of rock = 1.27 g/cm³

You might be interested in
Help please guys!
ra1l [238]
<span>Yes, mass is conserved. When sodium hydroxide (clear solution) and copper sulfate (blue solution) are mixed, they form a copper hydroxide (a blue solid) and sodium sulfate (a clear solution). This can be tested simply. First weigh the masses (10 g and 57 g, which totals 67 g)) of the two starting solutions prior to mixing. Then mix and allow the reaction to occur and weigh the mass of the mixture (10g + 57 g = 67 g). The two solutions should have the same mass and therefore demonstrate conservation of mass.</span>
7 0
3 years ago
Do noble gases react with other elements and why
marin [14]
They don't react with other elements under normal conditions as they are already in a low energy or stable state
6 0
3 years ago
Both the stomach and the small intestine are involved in the digestion of food.
monitta

Answer: I think the answer is The muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.

Explanation: Because the muscles would make the food smaller and the enzymes have a chemical change to it because it changes the molecules in the food.

3 0
2 years ago
Which statement explains how ATP and it's phosphate groups are relatedto energy that is used in plant processes
Zolol [24]

Hi my dear friend,

The statement that explain how ATP and its phosphate groups are related to energy used in plant process is that ADP gains a phosphate to create ATP, which stores energy for making sugars. These packets of energy in the form of ATP are then broken down to release energy and use that energy in synthesis of glucose.

~Thank you

8 0
3 years ago
When butter is melted, the _____________ of the butter has changed, but the substance is still butter?
sergeinik [125]
The state of butter has changed. it only melted, and no new substance is formed or mixed with another substance
7 0
3 years ago
Other questions:
  • Solid silver chloride, AgCI(s), decomposes to its elements when exposed to sunlight Write a balanced equation for this reaction
    5·1 answer
  • What type of boundary exists around the Pacific Ocean?
    14·1 answer
  • Is a girl doing any work while she stands still and holds a box? Why or why not?
    11·1 answer
  • What happens at the particle level during a chemical reaction?
    10·1 answer
  • Many common liquids have boiling points that are less than 110°C, whereas most metals are solids at room temperature and have mu
    7·1 answer
  • Will mark brainly<br> ASAP
    12·1 answer
  • Which of the following is NOT true about a C-14 atom?
    8·1 answer
  • An unknown compound is found to have a molar mass of 392.16 g/mol. If the empirical formula is C2H5PF2, what is the molecular fo
    10·1 answer
  • When heated, solid copper(II) carbonate decomposes to solid copper(II) oxide and carbon dioxide gas. Give the balanced chemical
    8·1 answer
  • What is the reason behind that the melting and boiling point of iron is more than that of sodium?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!