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
Contact [7]
3 years ago
9

Please help me to do this assignment

Chemistry
1 answer:
kirill [66]3 years ago
7 0

Answer:

1. Objective

2. Objective

3. Opinion

4. Objective

5. Opinion

6. Opinion

7. Opinion (I think.)

8. Opinion (I think.)

Explanation:

You might be interested in
State the uses of PET​
ExtremeBDS [4]

Explanation:

this might be helpful..

3 0
3 years ago
Read 2 more answers
. In a titration, a 25.0 mL sample of 0.150 M HCl is neutralized with 44.45 mL of Ba(OH)2. a. Write the balanced molecular equat
choli [55]

Answer:

Equation of reaction:

a) 2HCl + Ba(OH)2 ==> CaCl2 + 2H2O

b) Molarity of base = 0.042 M.

Explanation:

Using titration equation

CAVA/CBVB = NA/NB

Where NA is the number of mole of acid = 2

NB is the number of mole of base = 1

CA is the molarity of acid =0.15M

CB is the molarity of base = to be calculated

VA is the volume of acid = 25 ml

VB is the volume of base = 44.45mL

Substituting

0.15×25/CB×44.45 = 2/1

Therefore CB =0.15×25×1/44.45×2

CB = 0.042 M.

5 0
3 years ago
Haley is trying to pull an object upward. The below forces are acting on the object.
kramer
Based on the given conditions, the gravitational force acted on the body is greater than the force upward by a quantity equal to 500 N. Therefore, the net force will cancel out and will remain an amount of 500N downward relative to the gravitational force exerted by the object.
4 0
3 years ago
Read 2 more answers
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
Due in minutes! Please Help Solve!
stiks02 [169]
Step by step equation
5 0
3 years ago
Other questions:
  • ?cobalt has a density of 8.90 g. what volume would 17.8 g of Cobalt occupy?
    15·1 answer
  • Which contains elements with similar properties in the periodic table? A. a period B. a column C. a row
    12·2 answers
  • hat is the pH of a solution with a hydroxide ion concentration of 10–6M? A. pH = 12 B. pH = 8 C. pH = 6 D. pH = 7
    8·1 answer
  • How might a hurricane in Florida cause anomalous nest data
    15·1 answer
  • Why are Noble gases inert?
    15·1 answer
  • How many liters of methane gas (CH4) need to be combusted to produce 12.4 liters of water vapor, if all measurements are taken a
    10·1 answer
  • Can some help me with this i really don't under stand it you can Have brainliest
    12·1 answer
  • Which of the following materials is a metalloid or semi-metal (has some metallic properties and some properties similar to non-m
    11·1 answer
  • Nevermind i got it !
    15·2 answers
  • Is oil not mixing with water a physical or chemical change
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!