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
erma4kov [3.2K]
3 years ago
9

I need help please!!!!!!

Chemistry
1 answer:
bija089 [108]3 years ago
4 0
Car B has a greater momentum than A
You might be interested in
I attached my homework sheet, and can't figure it out. If anyone could help it would be great.
Lynna [10]

Answer:

I can't see the picture can you just text it to me so I can help you

7 0
3 years ago
Amino axit X có công thức H2NCxHy(COOH)2. Cho 0,1 mol X vào 0,2 lít dung dịch H2SO4 0,5M, thu được dung dịch Y. Cho Y phản ứng v
Taya2010 [7]

Answer:

nH2SO4 = 0,1 mol

Đặt nNaOH = a; nKOH = 3a (mol)

Quy đổi phản ứng thành: {X, H2SO4} + {NaOH, KOH} → Muối + H2O

Ta có: nH+ = nOH- → 2nX + 2nH2SO4 = nNaOH + nKOH

→ 2.0,1 + 2.0,1 = a + 3a → a = 0,1

→ nH2O = nH+ = nOH- = 0,4 mol

BTKL: mX + mH2SO4 + mNaOH + mKOH = m muối + mH2O

→ mX + 0,1.98 + 0,1.40 + 0,3.56 = 36,7 + 0,4.18 → mX = 13,3 gam

→ MX = 13,3/0,1 = 133

→ %mN = (14/133).100% ≈ 10,526%

7 0
2 years ago
Use the drop-down menus to match the name and structure for the following cycloalkanes. A five-sided polygon. A square. A five-s
Mashutka [201]

Answer:

A five-sided polygon.- cyclopentane

A square.- cyclobutane

A five-sided polygon with one line extending from a point.- methylcyclopentane

A 6-sided polygon with a line extending from one point to a C H 3.- methlcyclohexane

Explanation:

7 0
3 years ago
What is the combination of atoms Formed by a covalent bond
zysi [14]

Answer:

Explanation:

In a polar covalent bond, the distribution of common electrons are not shared evenly due to a greater positive charge from one atom's nucleus.Oct 30, 2016

3 0
3 years ago
Need help guys!!!!
Serhud [2]
A. When two chemicals mix their temperature rise: <span>Exothermic
b. </span>A solid burns brightly and releases heat, light and sound: <span>Exothermic
c. </span>When two chemicals are mixed their temperature drops: <span>Endothermic
d. </span>Two chemicals will only react if you heat them continually: <span>Endothermic
e. </span>Plants take in light energy for photosynthesis: <span>Endothermic

I hope this helps :)</span>
4 0
4 years ago
Other questions:
  • how much heat is required to raise the temperature of 1.248kg of gold from 22.0°c to 45.0°c(c=0.129j/g°c)​
    9·1 answer
  • Which of the following black body curves is representative of stars like our sun?
    13·2 answers
  • What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order
    14·2 answers
  • A solution of 49.0% H2SO4 by mass has a density of 1.39 g cm−3 at 293 K. A 22.6 cm3 sample of this solution is mixed with enough
    5·1 answer
  • g + In a coffee-cup calorimeter, when 3.25 g of NaOH is dissolved in 50.00 g of water initially at 22.0 oC, the temperature of t
    10·1 answer
  • How does percent composition by mass contribute to writing a balanced equation?
    13·1 answer
  • What are the atomic numbers for sodium,iron and sulfur???
    5·2 answers
  • 4. Calculate AH for the reaction
    9·1 answer
  • Consider separate solutions of NaOH and KClmade by dissolving 100.0 g of each solute in 250.0 mL of solution. Calculate the conc
    7·1 answer
  • in the reaction of magnesium metal with hydrochloric acid, how do you determine when the magnesium metal has reacted completely?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!