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
MAVERICK [17]
3 years ago
10

Please help ill give brainliest

Chemistry
2 answers:
boyakko [2]3 years ago
5 0

Answer: The answer to the first one is the second option and the answer for the second one is the first option.

Explanation:

hram777 [196]3 years ago
3 0
The answer to the first one is b the answer to the second one is a
You might be interested in
Why do you think plant cells need a cell wall as well as a cell membrane?
Sergio039 [100]

Answer:

to protect it from harm

Explanation:

3 0
3 years ago
a cube of iron (cp = 0.450 j/g•°c) with a mass of 55.8 g is heated from 25.0°c to 49.0°c. how much heat is required for this pro
krek1111 [17]
Q = ?

Cp = 0.450 j/g°C

Δt =  49.0ºC - 25ºC => 24ºC

m = 55.8 g

Q = m x Cp x Δt

Q = 55.8 x 0.450 x 24

Q = 602.64 J

hope this helps! 
7 0
3 years ago
Read 2 more answers
What is the molar mass of NH4?
astraxan [27]

Answer:

NH4

Explanation:

7 0
3 years ago
What happens to the ions when the drain is turned off? please help :] ❤️
kkurt [141]

Answer:

In a long channel MOSFET, the width of the pinch-off region is assumed small relative to the length of the channel. Thus, neither the length nor the voltage across the inversion layer change beyond the pinch-off, resulting in a drain current independent of drain bias. Consequently, the drain current saturates.

Explanation:

pls Mark my answer in brainlist and follow me

5 0
3 years ago
A 7.12 L cylinder contains 1.21 mol of gas A and 4.94 mol of gas B, at a temperature of 28.1 °C. Calculate the partial pressure
GenaCL600 [577]

Answer:

P_A=4.20atm\\\\P_B=17.1atm

Explanation:

Hello!

In this case, since the equation for the ideal gas is:

PV=nRT

For each gas, given the total volume, temperature (28.1+273.15=301.25K) and moles, we can easily compute the partial pressure as shown below:

P_A=\frac{n_ART}{V} =\frac{1.21mol*0.082\frac{atm*L}{mol*K}*301.25K}{7.12L} \\\\P_A=4.20atm\\\\P_B=\frac{n_BRT}{V} =\frac{4.94mol*0.082\frac{atm*L}{mol*K}*301.25K}{7.12L} \\\\P_B=17.1atm

Best regards!

8 0
3 years ago
Other questions:
  • How molecules of N2 gas can be present in a 2.5 L flask at 50°C and 650 mmHg?
    7·1 answer
  • Write the equilibrium-constant expression for the reactionA(s)+3B(l)↽−−⇀2C(aq)+D(aq)A(s)+3B(l)↽−−⇀2C(aq)+D(aq)in terms of [A], [
    7·1 answer
  • Consider a sample of 11.2 g of ice initially at 0.0 C. How much energy in kilojoules is required to melt the ice and warm it to
    12·1 answer
  • What is the effect of decreasing concentration of sodium hydroxide ten times in standardization​
    6·1 answer
  • Can some help me with this i really don't under stand it you can Have brainliest
    12·1 answer
  • What is consciousness? ...
    10·1 answer
  • Taro plants, which are native to Africa, were introduced into Florida's wetland biome in 1910. Today taro plants grow wild in th
    12·1 answer
  • the respiratory system includes a layer of cells in the air passage that clean the air before it gets to the lungs.this layer of
    10·1 answer
  • A chemical buffer is a solution that increases pH changes when small quantities of an acid or base are added. True False
    10·1 answer
  • Which transfers thermal energy in the same way the Suns energy is transferred to Earth?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!