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
Alinara [238K]
3 years ago
7

What are elements that bond with actinium

Chemistry
1 answer:
sineoko [7]3 years ago
5 0
Fluorine, chlorine, iodine (the halogens), oxygen, sulphur, hydrogen
You might be interested in
Iron(II) chloride is formed from the reaction between iron and copper(II) chloride. Fe + CuCl2 FeCl2 + Cu If the reactants have
elena55 [62]

Answer: see figure attached and explanation below.

Explanation:

1) Chemical equation (given):

Fe + CuCl₂ → Cu + FeCl₂

2) ΔHf reactants: -256 kJ/mol (given)

3) ΔHf products: - 321 kJ/mol (given)

4) ΔH reaction = ΔHf products - ΔHf reactants = - 321 kJ/mol - (- 256 kJ/mol) = - 65 kJ/mol

5) Conclusion:

i) Since ΔHf of products is less (more negative) than ΔHf of reactants, the reaction is exhotermic: the reaction released energy, which is the reason why the products content less potential energy than the reactants.

ii) Then, the energy diagram is the typical one of an exothermic reaction: the products start a certain potential energy level, the energy incrases until reaching the activation energy (the energy barrier to form the activated complex) and then energy decreases until a level below the energy of the reactants.

iii) See the attached figure with such kind of diagram showing the products at a lower level than the reactans

3 0
3 years ago
Read 2 more answers
1. Why do scientists use a standard measurement system?
Margaret [11]

Answer:

Explanation:

1.Scientists use a shared system for reporting measurements called the International System of Units (SI). We use common measurement systems because science involves a lot of replication to confirm results. The most common system used in science is the metric system.

2.m, kg, m^3

3. g value change

3 0
3 years ago
Read 2 more answers
AICI3(s)+Ca 3N2(s)-AIN(S)+CaCl2(s)
disa [49]

Answer:

2AlCl3 + Ca3N2 - 2AlN+ 3CaCl2

8 0
2 years ago
The whole reason things stay afloat or sink is because water is​
mars1129 [50]

Answer:

I think the density of the object determines if it floats or sinks

5 0
3 years ago
A student is studying a sample of carbon dioxide gas inside a small syringe. At constant temperature the syringe has a volume of
Soloha48 [4]

The new pressure inside the syringe will be 1.25 atm

<h3>Gas law</h3>

At constant temperatures, the volume of a gas is inversely proportional to its pressure.

Thus:   P1V1 = P2V2

In this case, P1 = 3.0 atm, V1 = 89.6 mL, V2 = 215 mL

P2 = P1V1/V2

                         = 3 x 89.6/215

                              = 1.25 atm

More on gas laws can be found here: brainly.com/question/1190311

4 0
2 years ago
Other questions:
  • Why do real gases not behave exactly like ideal gases?
    5·2 answers
  • What is the process by which individuals that are better adapted to their evnviroment are more likely to survive and reproduce?
    12·1 answer
  • Do acids have ph above 7?
    9·2 answers
  • Calculate the change in internal energy of the following system: a 100.0-g bar of gold is heated from 25 ∘C to 50 ∘C during whic
    12·2 answers
  • Calculate the oxidation number of the iodine (I) in each compound: HIO4 = I2 = NaI = HIO3 =
    12·2 answers
  • What is the purpose of the flame that is lit below a hot air balloon
    11·2 answers
  • A solid reactant is placed into a beaker of a warm water. The liquid vigorously bubbles as the solid dissolves into the solution
    9·2 answers
  • By examining the fossil record, we know that there has been a gradual diversity of species.
    5·1 answer
  • Which of the following correctly represents the radioactive decay of cesium-137?<br><br>​
    14·1 answer
  • Nitrate has the formula \textit {NO}_\textit3^-NO
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!