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
marusya05 [52]
2 years ago
7

Help asap! if u answer correct Ill give brainliest!!

Chemistry
2 answers:
SpyIntel [72]2 years ago
7 0

Answer:

I believe it means The universe will exploder or The universe is expanding

Explanation:

Marina86 [1]2 years ago
5 0

Answer:

D. The universe will explode

Explanation:

Sorry if im wrong! Have a great day/night/ afternoon!!

You might be interested in
Which statement describes the light reaction of photosynthesis?
cupoosta [38]

Answer:

A

Explanation:

water molecules are combined to make food

5 0
3 years ago
Which is caused by gravity?
MissTica
Mass wasting I think it's done
5 0
3 years ago
What does fossil mean in my own words
Nataliya [291]

Answer: A thing that died a long time ago, and it's bones were preserved in the ground.

Explanation:

Because yes

6 0
3 years ago
I’ll give the brainliest to whoever gets it right!!!
kramer

Answer:

itll slowly decay

Explanation:

i hope this helps

8 0
3 years ago
How many moles of copper are in 1.51 x 1024 Cu atoms?
kkurt [141]
<h3>Answer:</h3>

2.51 mol Cu

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<h3>Explanation:</h3>

<u>Step 1: Define</u>

1.51 × 10²⁴ atoms Cu

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

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                                \displaystyle 1.51 \cdot 10^{24} \ atoms \ Cu(\frac{1 \ mol \ Cu}{6.022 \cdot 10^{23} \ atoms \ Cu})
  2. Multiply/Divide:                  \displaystyle 2.50747 \ mol \ Cu

<u>Step 4: Check</u>

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

2.50747 mol Cu ≈ 2.51 mol Cu

8 0
2 years ago
Other questions:
  • How many electrons does a co atom have in its 3d subshell?
    15·1 answer
  • why do you think the experimenter conducted this experiment in a lab rather than in the natural world, where this phenomenon was
    12·1 answer
  • When an organic molecule loses hydrogen atoms it is said to be:_______.
    15·1 answer
  • If the complete conversion of 1.383g of XI2 results in the formation of 0.564g of XCl2,what is the atomic mass of the element X
    9·1 answer
  • A polypeptide in its native conformation has weak interactions between its R groups. However, when that same polypeptide is dena
    13·1 answer
  • When the concentration of hydronium ions equals the concentration of hydroxide ions, it is called the _____. balence?
    7·1 answer
  • Determine the amount of moles in 6.36x10^25 molecules of H2O
    13·1 answer
  • What is the relationship between Celsius scale and Kelvin scale of temperature ? very sort answer​
    7·1 answer
  • The pressure of a compressed gas is 1.45 atm. What is this<br> pressure in kPa?<br> kPa
    11·1 answer
  • Can someone answer that first this pls im lost
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!