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
zheka24 [161]
3 years ago
5

NEED ANSWER ASAP

Chemistry
2 answers:
Oksana_A [137]3 years ago
8 0
I think it is A (10 %)
krek1111 [17]3 years ago
3 0
A. 10% is the answer.
You might be interested in
Thực trạng tồn dư nitrat trên rau và an toàn thực phẩm
hram777 [196]

You are a botereleg

ggggggggggg

4 0
3 years ago
Sugar has a lower melting point than salt because sugar is made of _________.
il63 [147K]
The correct answer is Crystals.

Unlike sugar, salt is not made out of crystals, but both salt and sugar are made out of atoms, that is molecules, and can have ions.
4 0
3 years ago
The energy pyramid represents energy flow in an African grassland. If there are 7,500
Evgesh-ka [11]

Answer: i need that answer to

Explanation:

3 0
3 years ago
Is zinc a basic radical or acid radical?​
lukranit [14]

Answer:

depends on the element it's reacting with..

Explanation:

if the another element requires less energy to loose electron then zinc will become negatively charged and hence becomes acidic radical..

normally if it is reacting with element with valency 4 and Atomic number less than it(Ti,Si,C) then it will lose electron and gain positive sign and henve becomes basic radical..

6 0
3 years ago
1. What is the mass of a rock that has a density of 2.5 grams per cubic centimeter and a volume of 4.0
dangina [55]

Answer:

Explanation:

d =

m

V

m = d×V

V =

m

d

DENSITY

Density is defined as mass per unit volume.

d =

m

V

Example:

A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?

Step 1: Calculate the volume

V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³

Step 2: Calculate the density

d =

m

V

=

433

g

200

c

m

³

= 2.16 g/cm³

MASS

d =

m

V

We can rearrange this to get the expression for the mass.

m = d×V

Example:

If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?

m = d×V = 500 mL ×

1.11

g

1

m

L

= 555 g

VOLUME

d =

m

V

We can rearrange this to get the expression for the volume.

V =

m

d

Example:

What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.

Step 1: Convert kilograms to grams.

14.83 kg ×

1000

g

1

k

g

= 14 830 g

Step 2: Calculate the volume.

V =

m

d

= 14 830 g ×

1

c

m

³

19.32

g

= 767.6 cm³

7 0
3 years ago
Other questions:
  • What information does the chemical shift of an nmr signal convey? select the correct answer?
    15·2 answers
  • How to calculate magnitude of k
    6·1 answer
  • Which ppower source directs the electrons from oxidation reduction reations to flow through a device to give the device power?
    11·1 answer
  • In the following reaction, how many moles of CO2 will form if 10 moles of C3H4 are reacted? How many moles of O2 will also be co
    8·1 answer
  • What is the percent by mass of oxygen in carbon dioxide
    10·1 answer
  • I have a question on my Chem homework. It's asking "How many molecules of N2O4 are in 76.3 g N2O4? The molar mass of N2O4 is 92.
    13·1 answer
  • 1. Balance the equation, then answer the following based on the equation
    11·1 answer
  • Now moles: _(1, 2, or 3)_moles of H2 + _(1, 2, or 3)_ moles of O2 → _(1, 2, or 3)_moles of H2O
    6·1 answer
  • What size volumetric flask would you use to create a 0.50 M<br> solution using 10.00 g of CaBr2
    10·1 answer
  • What has more particles: a mole of hydrogen or a mole of uranium?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!