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
Gekata [30.6K]
3 years ago
8

PLS ANSWER FAST THANK YOUU

Chemistry
2 answers:
Anit [1.1K]3 years ago
6 0

Answer:

c

Explanation:

V125BC [204]3 years ago
4 0
I’m pretty sure it is B. Melted wax is a different phase of matter than solid. States of matter include solid liquid gas and plasma. Solid wax is a solid and melted is a liquid.
You might be interested in
Explain Why s-32 is a stable nuclidle
malfutka [58]
I think it is because it has an even number of valence electrons.
4 0
4 years ago
Read 2 more answers
Select the correct answer.
garik1379 [7]

Answer:

the answer to ur question is B

Explanation:

heating curve- a graph / plot where a subject it increases in temperature against time to accurately measure it's amount of energy it absorbs and changes state with temperature that increase

it shows how temperature changes as a substance is heated up at a constant rate

8 0
3 years ago
Which action(s) is/are true of antihistamines? (select all that apply.) test bank?
Sav [38]
The correct answers from the choices are:

a. Reduce inflammation locally
b. Antagonize H1 receptors
c. May be administered orally
<span>d. Are systemically distributed

</span><span>Antihistamines are drugs that are H1 antagonists or blockers, may be administered orally, are distributed systemically, and do not directly reduce nasal congestion.</span>
7 0
3 years ago
Why did all sodium compounds show the same colour in the flame
Alinara [238K]
All sodium compounds show the same coloured flame because sodium’s familiar bright orange-yellow flame colour results from promoted electrons falling back from the 3p1 level to their normal 3s1 level. The exact sizes of the possible jumps in energy terms vary from one metal to another.
6 0
3 years ago
Suppose 650 mL of hydrogen gas are produced through a displacement reaction involving solid iron and sulfuric acid, H2SO4, at ST
scoray [572]

Answer:

                      4.415 g of FeSO₄

Explanation:

                   The balance chemical equation for given single replacement reaction is as follow;

                                  Fe + H₂SO₄ → FeSO₄ + H₂

Data Given;

                  Volume =  650 mL  =  0.65 L

                  Density at STP =  0.08988 g/L

                  Mass = Density × Volume = 0.08988 g/L × 0.65 L = 0.0584 g

Step 1: <u>Calculate Moles of H₂ as;  </u>

                  Moles  =  Mass / M.Mass

                  Moles  =  0.0584 g / 2.01 g/mol

                  Moles  =  0.0290 mol of H₂

Step 2: <u>Find out moles of FeSO₄ as;</u>

According to balance chemical equation,

            1 mole of H₂ is produced along with  =  1 mole of FeSO₄

So,

   0.0290 moles of H₂ will be produced along with  =  X moles of FeSO₄

Solving for X,

                    X  =  0.0290 × 1 mol / 1 mol

                    X =  0.0290 moles of FeSO₄

Step 3: <u>Calculate mass of FeSO₄ as;</u>

                   Mass  =  Moles × M.Mass

                   Mass  =  0.0290 mol × 151.90 g/mol

                   Mass  =  4.415 g of FeSO₄

4 0
3 years ago
Other questions:
  • Convert 167.9mL to daL.
    5·1 answer
  • Edmentum user What are the types of wastewater? Fill in the Blank You can find two types of wastewater: household and _________
    7·1 answer
  • Hydrogen First ionization energy?
    9·1 answer
  • Name the following structure:<br> HOCH2CH2CH2OH
    11·2 answers
  • Which equation shows the correct relationship between mass, force, and acceleration?
    7·1 answer
  • Raise the temperature of 2 g of water 2°C.
    15·1 answer
  • ✞Why is propane stored in household tanks but natural gas is not?♡♡♡​
    12·1 answer
  • 1- Calcium Hydroxide + Calcium Bicarbonate
    6·1 answer
  • A rigid, 26-L steam cooker is arranged with a pressure relief valve set to release vapor and maintain the pressure once the pres
    11·1 answer
  • Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH. What was the concentration of the H2SO4
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!