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
Nitella [24]
3 years ago
5

Science Questions

Chemistry
2 answers:
dimulka [17.4K]3 years ago
7 0

1)
E.) microwaves
2)
B.) Gamma rays
3)
E.) space

4)
B.) crest

5)
A.) trough

6)
D.) frequency


7)
C.) wavelength


8) 21/3= 7Hz

9)
True

10)
True

11)
True
navik [9.2K]3 years ago
4 0
9. Is true
Sorry I'm not really learning that right now but I'll try googling the answers
You might be interested in
V1T2 = V2T1 is an expression of who’s law
Andru [333]

<u>Answer:</u>

It is the expression of Charles' Law.

<u>Explanation:</u>

The given expression V1T2 = V2T1 is the formula for the Charles' Law.

A special case of an ideal gas is named as the Charles' Law. This law applies to ideal gases only which are at constant pressure.

According to this law, the volume of a fixed mass of a gas is directly proportional to its temperature and is given by:

V1T2 = V2T1

6 0
3 years ago
Read 2 more answers
A 55.0 mL aliquot of a 1.50 M solution is diluted to a total volume of 278 mL. A 139 mL portion of that solution is diluted by a
balu736 [363]

Answer:

0.14 M

Explanation:

To determinate the concentration of a new solution, we can use the equation below:

C1xV1 = C2xV2

Where C is the concentration, and V the volume, 1 represents the initial solution, and 2 the final one. So, first, the initial concentration is 1.50 M, the initial volume is 55.0 mL and the final volume is 278 mL

1.50x55.0 = C2x278

C2 = 0.30 M

The portion of 139 mL will be the same concentration because it wasn't diluted or evaporated. The final volume will be the volume of the initial solution plus the volume of water added, V2 = 139 + 155 = 294 mL

Then,

0.30x139 = C2x294

C2 = 0.14 M

4 0
3 years ago
Read 2 more answers
PLEASE HELP
Ipatiy [6.2K]

Your answer should be “C.”

MARK ME BRAINLIEST PLEASE!!!!!!

6 0
3 years ago
Read 2 more answers
Calculate AH for the reaction:<br> 2N2 (g) + 6H20 (g) → 302 (g) + 4NH3(g)
Ratling [72]

Answer:

Explanation:

4NH₃ (g) + 3O₂ (g) ⇒ 2N₂ (g) + 6H₂ O(1)

ΔH_r={\sum}{ \Delta }H_f(\text{product})-{\sum}{ \Delta }H_f(\text{reactant})

ΔH r =(2ΔH f(N 2 )+6ΔH f (H 2 O(l)))−(4ΔH f​ (NH 3 (g))+3ΔH f (O 2 (g)))

ΔH rex =[2×0+6×(−286)]−[4×(−46)+3×0]=−1716+186

ΔH rex =−1532kJ/mol

Thermodynamics is a branch of physical chemistry that studies heat and its effects and interactions. Governed by the four main laws, thermodynamics plays a huge role in physics and chemistry, and is also responsible for the law of conservation of energy, a fundamental rule in science.

7 0
1 year ago
What is temperature?
BabaBlast [244]

the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch. So I would have to go with A.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solubility of m(oh)2 in a 0.202 m solution of m(no3)2? ksp = 9.05×10−18?
    8·1 answer
  • What is very fine sediment called
    14·2 answers
  • Reflecting and refracting telescopes are used to gather radiation from space. Which of these statements best explains why a refr
    10·1 answer
  • What is the octet rule
    12·2 answers
  • What is the mass in grams of 5.40 moles of lithium.
    7·2 answers
  • A thermometer having first-order dynamics with a time constant of 1 min is placed in a temperature bath at 100oF. After the ther
    6·1 answer
  • Which of the following is true for compounds?
    10·1 answer
  • A student claims that if she wanted to make a solution quickly, she should use small pellets instead of powder along with heatin
    8·1 answer
  • If you have a parallel circuit with a battery (4 ohms), a light bulb (2 ohm), and a fan (3 ohms), how would you find the total r
    11·1 answer
  • Propene also reacts with bromine CH2CHCH3+Br2-&gt; C3H6Br2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!