All categories

3 years ago

The density of a material is a/an

1 answer:

5 0

Density is a measure of mass per volume, and the average density of an object equals its total mass divided by its total volume
Hope this helps :)

You might be interested in

A 46.9 gram sample of a substance has a volume of about 3.5 centimeters3. It is solid at a room temperature of 23ºC. Out of the

Masteriza [31]

Answer:- C. Hafnium.

Solution:- Mass of the sample is 46.0 g and it's volume is $3.5cm^3$ .

From mass and volume, we can calculate it's density using the formula:

$density=\frac{mass}{volume}$

$density=\frac{46.9g}{3.5cm^3}$

$density=\frac{13.4g}{cm^3}$

On the basis of the density, this substance could either be mercury or hafnium. Since the substance is a solid at room temperature where as mercury is liquid. So, it can't be mercury.

The right choice is C) Hafnium.

3 0

3 years ago

If the partial pressure of the diatomic gas is 0.630 ATM what is the total pressure?

astraxan [27]

3 moles of the diatomic green
--> p1=0.63 atm = 3×2 atoms
p2 is 6 moles of blue
p3 is 5 moles of orange
P-total (Pt) = p1 + p2 + p3
Pt = 0.63 + 0.63 + (0.63)(5)/6
Pt = 1.26 + 0.525 = 1.79 atm

8 0

3 years ago

Read 2 more answers

What location is 90 degrees away from the equator?

kirill115 [55]

C) both A and B

Each parallel measures one degree north or south of the Equator, with 90 degrees north of the Equator and 90 degrees south of the Equator
Hope this helps!

4 0

3 years ago

Read 2 more answers

Identify this parasitic organism.

monitta

Answer:

Schistosoma or blood fluke

Explanation:

Parasitic organisms are defined as the organisms that depends on other organisms body called host for their nutrition and harm the host body.

The given image is of Schistosoma that is commonly known as blood flukes. Schistosoma are flatworms which causes group of infections in humans known as schistosomiasis. Schistosoma is a water-borne parasite and found in veins near the human intestine.

Hence, the correct answer is "Schistosoma or blood fluke".

3 0

3 years ago

Show how you would synthesize each compound from benzene, toluene, or phenol using the following reactions: Choose the starting

Phantasy [73]

Answer:

1. Phenol

Amination and bromination

2. Toluene

Sulfonation and chlorination

Explanation:

In this question, we are tasked with with stating the starting materials and the kind of reaction needed for the production of the particular compound in question.

We proceed as follows;

COMPOUND 1

Name; 2-amino-4-bromophenol

Starting materials; Phenol

Reactions; Amination and Halogenation(Bromination to be specific)

To produce 2-amino-bromophenol, two reactions are incorporated on the phenol starting product. Amination is carried out using aminating reagent such as hydroxylamine through electrophilic substitution while halogenation is carried out using bromine water

COMPOUND 2

Name; 5-chloro-2-methylbenzenesulfonic acid

Starting materials; Toluene

Reactions; Sulphonation and Halogenation (Bromination)

To produce 5-chloro-2-methylbenzenesulfonic acid, two reactions are incorporated on the toluene starting product. Chlorination is carried out first, while sulfonation using sulfuric acid is carried out afterwards

PLEASE CHECK ATTACHMENT FOR REACTION SCHEMA

6 0

4 years ago