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
nekit [7.7K]
3 years ago
13

Plz answer 3 ,4,5 thanks

Chemistry
1 answer:
ratelena [41]3 years ago
5 0
For #3 the answer is B, for #4 the answer is F, and for #5 the answer is B.
You might be interested in
3. Two people are playing tug of war. One person pulls to the right with 32 N of force. The other person pulls to the left with
SVETLANKA909090 [29]

The net force = -5 N

The direction : to the left(negative sign)

<h3>Further explanation </h3>

Net force : the sum of all forces acting on an object

Force is a vector quantity that has both magnitude and direction,

We agree that the move up and to the right is a positive sign, while down and to the left is a negative sign.

The direction of the force (horizontal motion) is to the right (+32 N), and to the left (-37 N), so the net force :

\tt \sum F=F~right-F~left\\\\\sum F=32-37\\\\\sum F=-5~N

5 0
3 years ago
Who helps recycle nutrients through an ecosystem? A. producers and decomposers B. producers and consumers C. consumers and decom
s2008m [1.1K]

D. Producers im sure of it hope im right

8 0
3 years ago
Read 2 more answers
What is the concentration of h+ ions in a 2.20 m solution of hno3?
kvv77 [185]

The question is improperly formatted.

What is the concentration of H+ ions in a 2.2 M solution of HNO3.

Answer:-

2.2 moles of H+ per litre

Explanation:-

M stands for molarity. 2.2 M means 2.2 moles of HNO3 is present per litre of the solution.

Now HNO3 has just 1 H in it's formula. HNO3 would give H+. So 2.2 moles of HNO3 would mean 2.2 moles of H+ per litre.

7 0
3 years ago
Which statement does NOT apply to Alkenes?
nikdorinn [45]

Answer:

They are more stable than alkanes

Explanation:

  • <em><u>Alkenes</u></em><em><u> are a type of unsaturated hydrocarbons </u></em>which means they have a<u> double bond</u> in their structure, or lack maximum number of hydrogen atoms on each carbon.
  • Alkenes have a general formula of CnH2n. They are called <u>unsaturated hydrocarbons</u> since they have a double bond. They are therefore less stable compared to alkanes and also are readily reactive.
6 0
3 years ago
Read 2 more answers
10 moles of carbon dioxide has a mass of 440 g. What is the relative formula mass of carbon dioxide?
Ksenya-84 [330]

Answer: 44g

Explanation: The formular for finding Moles is ;

Moles =  Mass / Molar Mass or Formular Mass.

Base on this question; Moles = 10, Mass = 440g, and Formular Mass = ?

Making 'Formular Mass', subject of the formular; we thus have;

Formular mass = Mass / Moles = 440/ 10 = 44g

7 0
3 years ago
Other questions:
  • Calculate the mass in grams of a single atom C¹²​
    7·2 answers
  • ]Which of the following describes the arrangement of particles in plasma?The particles are ionized and move independently of eac
    10·2 answers
  • What is the formula for potassium fluoride?
    5·1 answer
  • Oxygen 22 has a half life of 2.25 seconds. What percent of the sample is left after 2.25 seconds?
    7·2 answers
  • Answer questions using the two magnetic field models (will mark brainliest)
    12·1 answer
  • Which of the following affects the speed of a seismic wave?
    5·1 answer
  • Taurat adalah kitab yang diturunkan kepada Nabi Musa a.s.. Kitab Taurat diturunkan pada abad ke…
    15·1 answer
  • Chemical reactions
    9·1 answer
  • Someone please help me!!
    7·1 answer
  • Is Octocrylene (C24H27NO2) Ionic or Covalent?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!