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
bixtya [17]
3 years ago
9

PLEASE HELP!!!!!! WILL AWARD BRAINLIEST!!!!!!

Chemistry
1 answer:
asambeis [7]3 years ago
6 0

Answer:

A. Sedimentry rock

b. high pressure

Explanation:

You might be interested in
During an experiment, a student observes the formation of a precipitate. Why does this indicate that a chemical reaction is like
My name is Ann [436]

A. A solid forms, and there is a change of color.

8 0
3 years ago
Which missing item would complete this beta decay reaction?
madam [21]

Answer:

<h3>The answer is option A.</h3>

Hope this helps you

8 0
3 years ago
A box has sides of 10 cm, 8.2 cm, and 3.5 cm. What is its volume?
aksik [14]
Do length x width x height which is 10 cm x 8.2 cm and 3.5 cm. Pay close attention to sig figs as well (or if your teacher doesn't mind all that much then don't fret about it, but mine's really picky!) 
4 0
3 years ago
Read 2 more answers
Sodium metal is sometimes used as a cooling agent in heat exchange units because of its relatively high molar heat capacity of 2
IgorC [24]

Answer:

The specific heat of sodium is 1,23J/g°C

Explanation:

Using the atomic weight of sodium (23g/mol) and the atomic weight definition, we have that each mole of the substance has 23 grams of sodium.

starting from this, we use the atomic weight of sodium to convert the units from J / mol ° C to J / g ° C

28,2 \frac{J}{mol C} x \frac{1mol}{23g} = 1,23 J/g C

4 0
3 years ago
How many moles are present in 54.8 mL of mercury if the density of mercury is 13.6 g/mL?​
lesya692 [45]

Answer:

3.72 mol Hg

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Density = Mass over Volume

Explanation:

<u>Step 1: Define</u>

D = 13.6 g/mL

54.8 mL Hg

<u>Step 2: Identify Conversions</u>

Molar Mass of Hg - 200.59 g/mol

<u>Step 3: Find</u>

13.6 g/mL = x g / 54.8 mL

x = 745.28 g Hg

<u>Step 4: Convert</u>

<u />745.28 \ g \ Hg(\frac{1 \ mol \ Hg}{200.59 \ g \ Hg} ) = 3.71544 mol Hg

<u>Step 5: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

3.71544 mol Hg ≈ 3.72 mol Hg

8 0
3 years ago
Other questions:
  • 54 Identify the type of bonding in solid potassium.
    15·1 answer
  • Which of the following best describes the rate of motion of a glacier?
    7·2 answers
  • A solution was prepared by dissolving 0.800 g of sulfur S8, in 100.0 g of acetic acid, HC2H3O2. Calculate the freezing point and
    12·1 answer
  • Which scientist used the word "cell” for the first time in science?
    14·1 answer
  • Since atoms have more than one electron (other than atomic hydrogen) how do you account for the electrons remaining associated w
    6·1 answer
  • What is the reducing agent in the following reaction? <br><br> 2Na + 2H2O → 2NaOH + H2
    15·2 answers
  • For the following reaction, 22.8 grams of diphosphorus pentoxide are allowed to react with 13.5 grams of water . diphosphorus pe
    9·1 answer
  • What is log of 52????
    13·2 answers
  • s sample of thorium-234 has a half life of 25 days. will all the thorium undergo radioactive decay in 50 days?
    14·1 answer
  • CAN ANYONE SHARE 10 MEMES AND BAG THE BRAINLISST
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!