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
Jobisdone [24]
3 years ago
14

1

Chemistry
1 answer:
Shtirlitz [24]3 years ago
8 0

Answer:

I believe the answer to be period 3 group 1

You might be interested in
Bf3 can be octet or not​
makvit [3.9K]

Answer:

(BH3 follows the octet rule by dimerizing, as Hadi Kurniawan AR pointed out.) For H and He, an "octet" = 2 electrons. Boron does prefer to follow the octet rule, in that it likes to form borate compounds such as NaBH4. It also is happy to form compounds with elements with lone pairs.

7 0
3 years ago
2. How many grams of zinc will be formed if 32.0 g of copper reacts with zinc nitrate? Copper(I)nitrate is the other product.
Yakvenalex [24]

Answer:

16.46 g.

Explanation:

  • It is a stichiometry problem.
  • We should write the balance equation of the mentioned chemical reaction:

<em>2Cu + Zn(NO₃)₂ → Zn + 2Cu(NO₃).</em>

  • It is clear that 2.0 moles of Cu reacts with 1.0 mole of Zn(NO₃)₂ to produce 1.0 mole of Zn and 2.0 moles of Cu(NO₃).
  • We need to calculate the number of moles of the reacted Cu (32.0 g) using the relation:

<em>n = mass / molar mass</em>

  • The no. of moles of Cu = mass / atomic mass = (32.0 g) / (63.546 g/mol) = 0.503 mol.

<u><em>Using cross multiplication:</em></u>

2.0 moles of Cu produces → 1.0 mole of Zn, from the stichiometry.

0.503 mole of Cu produces → ??? mole of Zn.

  • The no. of moles of Zn produced = (1.0 mol)(0.503 mol) / (2.0 mol) = 0.2517 mol.

∴ The grams of Zn produced = no. of moles x atomic mass of Zn = (0.2517 mol)(65.38 g/mol) = 16.46 g.

3 0
3 years ago
What do scientists call organisms, such as plants, which make their own food?
larisa [96]

Most plants are called autotrophs they make their own food

5 0
3 years ago
In an investigation, explain the best way to use variables in an experiment
vazorg [7]

Answer:

An experiment is an investigation in which a hypothesis is scientifically tested. In an experiment, an independent variable (the cause) is manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. An advantage is that experiments should be objective.

Explanation:

6 0
2 years ago
I need help with this and quickyly if anyone is good in Chemistry??
Dominik [7]
The correct answer is d) chrima
6 0
3 years ago
Other questions:
  • Define ductile.........?​
    8·2 answers
  • The compound Ba(NO3)2 includes _____ oxygen atoms.<br> 6<br> 3<br> 5<br> 2
    5·2 answers
  • Sodium metal and water react to form hydrogen and sodium hydroxide. If 11.96 g of sodium react with water to form 0.52 g of hydr
    8·1 answer
  • Consider 0.022 grams of H2(g) produced by the following chemical reaction, 2 HCl(aq) + Mg(s) → MgCl2(aq) + H2(g) Determine if ea
    13·1 answer
  • So our professor didn't go over this but is freshly cut sodium, but rapidly tarnishes on contact with air a physical or chemical
    14·1 answer
  • Given the reaction 2NaOH + H2SO4 = Na2SO4 + 2H2O, what is the total number of grams of NaOH needed to react completely with 196
    13·1 answer
  • What is the mass in grams of 366mL of ethylene glycol
    15·1 answer
  • A supersonic jet is flying west at one-third of its maximum speed. The jet's top speed is 4,500 kilometres per hour. If the jet'
    14·1 answer
  • What type of plate boundary (divergent, convergent, or transform) is typically
    8·1 answer
  • What are phrases that you need to include in your TCT that show that you are citing evidence? Failure to use these phrases will
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!