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
BARSIC [14]
4 years ago
12

HELP ME PLEASE ILL GIVE 30 POINTS

Chemistry
2 answers:
Sveta_85 [38]4 years ago
7 0
I was thinking it was D
Natalka [10]4 years ago
4 0
Rerouting the river won't have an affect on the fish because they can move right along with it. It will have an affect on the animals because when that moves it might leave a little water or none, and some animals can't keep moving like that because of their water supply.
You might be interested in
How to name the hydrocarbons? according to IUPAC i guess?​
jeka94

Answer:

hydrocarbons are compounds which contains Hydrogen and carbon

8 0
3 years ago
When a chemical reaction take place new atom or new element are formed true or false
Andreas93 [3]

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change. A chemical reaction is a mechanism that takes place when two or more molecules interact to produce new products. A reaction between two atoms or ions or molecules may take place and a new bond is formed and no atom is destroyed or created, but reactants form a new substance.

True ^_^

3 0
3 years ago
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the
Alchen [17]

In the first law of thermodynamics, it states when heat is converted into energy, where as the total energy in the room could transform into another but can never be created or destroyed. If you release 258J of energy in the room, 258J would also be removed from the food according to the isolating system.

Your answer would be 258J.

4 0
3 years ago
What type of experiment did the student in the passage perform?
Angelina_Jolie [31]

Answer:

controlled

Explanation:

awnser

4 0
3 years ago
Determine the molarity of 50 mL of HCl solution with unknown concentration, titrated with 75 mL of 4.0 M NaOH.
Aleks04 [339]

Answer:

The answer to your question is 6.0M, I know that you said it was not the answer, but it is. Check the significant figures.

Explanation:

Data

Molarity = ?

volume of HCl = 50 ml

volume of NaOH = 4 M

volume = 75 ml

Balanced chemical reaction

        HCl  +  NaOH  ⇒  NaCl  +  H₂O

Process

1.- Calculate the moles of NaOH

Molarity = moles/volume

moles = Molarity x volume

moles = 4 x 0.075

moles = 0.3 of NaOH

2.- Use proportions to calculate the moles of HCl

                 1 mol of NaOH ----------------- 1 mol of HCl

                0.3 moles of NaOH ----------  x

                 x = (0.3 x 1)/1

                 x = 0.3 moles of HCl

3.- Calculate the molarity of HCl

Molarity = 0.3/0.05

Molarity = 6.0 M

8 0
4 years ago
Read 2 more answers
Other questions:
  • Which formed first: hydrogen nuclei or hydrogen atoms?
    15·1 answer
  • Which part of the periodic table contains elements with the greatest metallic properties?
    11·1 answer
  • Put the following steps of the light reactions in the correct order:
    8·1 answer
  • A compound is found to contain 64.80% carbon. 13.62% hydrogen. And 21.58% oxygen by weight. What is the empirical formula for th
    8·2 answers
  • A graph showing how solubility changes with temperature?
    10·1 answer
  • The elements in Period 4 on the Periodic
    12·1 answer
  • Why is water considered a pure substance?
    10·1 answer
  • What causes rocks to change and form into new types of rocks?
    11·2 answers
  • Select the correct structure that
    11·1 answer
  • Explain why scientists find the particulate matter of theory useful
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!