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Strike441 [17]
3 years ago
13

URGENT PLEASE HELP!! Earth science!!

Chemistry
1 answer:
aev [14]3 years ago
3 0

Answer:

URGENT PLEASE HELP!! Earth science!!

What stages of development are represented by the Group 2 and Group 3 stars? Describe these

groups in terms of their relative age, size, brightness, and temperature.

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QUESTION 4
Katyanochek1 [597]

Parasitism relationship, where one takes something (leeches off) the other

8 0
3 years ago
Read 2 more answers
Question 2 (1 point)
PIT_PIT [208]

Answer:

I believe it's multicellular.

Explanation:

because prokaryotes are a lot simpler then eukaryotes. bacteria is not multicellular but unicellular.

eukaryotes are very complex

6 0
3 years ago
How many moles of koh are needed to neutralize 0.4 moles of hno3
Julli [10]

Answer:

0.4 moles of KOH is required to neutralize 0.4 moles of HNO3.

Explanation:

The equation of the reaction is

KOH(aq) + HNO3(aq) ------> KNO3(aq) + H2O(l)

This is a neutralization reaction. A neutralization reaction is a reaction between an acid and a base to form salt and water only.

Having written the balanced chemical reaction equation, we can now solve the prob!em stoichiometrically.

From the balanced reaction equation;

1 mole of KOH is required to neutralize 1 mole of HNO3

Therefore x moles of KOH is required to neutralize 0.4 moles of HNO3

x= 1×0.4/1 = 0.4 moles

Therefore, 0.4 moles of KOH is required to neutralize 0.4 moles of HNO3.

7 0
3 years ago
Read 2 more answers
Can I get some help please I’m lost :(
Molodets [167]

Answer:

C) 11 g

Explanation:

first look to graph , you have x and y

x is mass of Fe

and y is mass of product

if the reaction consumes 2 g of Fe , ( look to x axis , look to 2 )

and go up until the black line touch the line of number 2

and go left and you will see the point become in the middle between 10 and 12  

** 12 (11) 10 ***

Good Luck

7 0
4 years ago
How many moles of co2 must enter the calvin cycle for the synthesis of one mole of glucose?
11111nata11111 [884]

Answer:3 moles

Explanation:

For every three molecules of CO2 that enters the Calvin cycle, one molecule of the three carbon glyceraldehyde 3-phosphate (G3P) is produced. Two molecules of G-3-P are required to produce one molecule of glucose. Therefore, the Calvin cycle needs to make a total of 6 turns to produce two molecules of G-3-P.

7 0
4 years ago
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