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
Sliva [168]
3 years ago
11

I NEED HELP NOW!!!!!!!!!!!

Chemistry
1 answer:
Rashid [163]3 years ago
3 0

A: the ball in frame A had the highest velocity, and the ball in frame B has the highest kinetic energy

You might be interested in
PLEASE HELP!!
REY [17]
The physical properties of water is that it is clear, it has no taste. No odour. It freezes at 0 degrees Celsius and boils at 100 degrees Celsius. The different stages of water is liquid, solid and gas. It is liquid at normal state. Ice when solid and steam when it is a gas state.

It is essential for human life because majority of the human body is made out of water. The water in the body allows certain parts and organs to function properly. Without water humans are most like to become I’ll and even dehydrate causing major injuries. It is also essential for the brain to function
3 0
2 years ago
PLEASE HELPPPP! HOW DO I DO THIS???
kow [346]

Answer:

1552.83J Released

Explanation:

1. mass/m=225

Initial temp:86C, final:32.5C

Changed Temp: 32.5-86= -53.5C

s=0.129 J/gC

Formula: q= m times s times changed Temp.

q=(225)(0.129)(-53.5)

q= -1552.83 J

q=1552.83 J Released

8 0
3 years ago
13. How many moles of sodium hydroxide are needed to neutralize 50grams of sulfuric acid?
Phoenix [80]

Answer:

1.02mole

Explanation:

The reaction equation is given as:

     2NaOH  +  H₂SO₄ →  Na₂SO₄  + 2H₂O

Given:

Mass of H₂SO₄  = 50g

Unknown:

Number of moles of NaOH = ?

Solution:

To solve this problem, we first find the number of moles of the acid given;

  Number of moles  = \frac{mass}{molar mass}

Molar mass of H₂SO₄ = 2(1) + 32 + 4(16)  = 98g/mol

Now;

   Number of moles = \frac{50}{98}   = 0.51mole

From the balanced reaction equation:

       1 mole of H₂SO₄ will be neutralized by 2 mole of NaOH

     0.51 mole of H₂SO₄ will be neutralized by 2 x 0.51  = 1.02mole of NaOH

6 0
2 years ago
a mineral that has - can be split fairly easily along plains with weak atomic attraction A. streak B. Cleavage C. luster D. Hard
tatyana61 [14]
I am going to have to say C. luster if not then B. Cleavage
5 0
3 years ago
Read 2 more answers
1.  CH4 + 2O2 → 2CO2 + 2H2O = Balanced or Unbalanced
Sergio [31]

1)unbalanced

2)Unbalanced

3)unbalanced

4)Unbalanced

5)Unbalanced

6)Unbalanced

7)Unbalanced

this might be wrong but i didnt see the same amount of certain elements on both sides

6 0
3 years ago
Other questions:
  • Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Cr3+(aq) + Pb(s)2Cr2+(aq) + Pb2+(aq)
    8·1 answer
  • From the list below, which items describe beta decay? Check all that apply. APEX
    7·1 answer
  • What is 694,563,239 rounded to the nearest thousand
    14·2 answers
  • This type of substance has a pH of 7. It will not change the color of litmus.
    12·1 answer
  • What is the atmosphere
    12·2 answers
  • What are some examples of properties of water?
    15·1 answer
  • write a generalization correlating solubility with ionization. start with: "as compounds become more ionized,..."
    6·1 answer
  • What is the ratio of hydrogen(H) to oxygen(O) in hydrogen peroxide(H2O2)?
    13·1 answer
  • How many atoms are in 6.7 moles of iron?
    6·2 answers
  • You use a _______ when you are changing compounds
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!