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Ronch [10]
2 years ago
9

1. Which of the following describes a biotic influence on population size?

Chemistry
1 answer:
Alborosie2 years ago
5 0

Answer:

A

Explanation:

decreased rainfall leads to less space for fish in a pond to live.

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How many moles in 2.0g of carbon dioxide?
ANEK [815]
First you need to find out the Limiting reactant (LR). convert both reactants to the same thing. Check that the chemical equation is balanced.  Now use stoichiometr and remember at moles, multiply: need moles, divide2 g / 42g/mol=  0.0477 mol propane         mass propane/ Molar Mass propane = moles propane4 g / 32 g/mol= 0.125 mol oxygen X (1 mol/ 5 mol) = 0.025 mol propane   oxygen is the LRmass O2 / MM O2 X (mol propane / mol O2)0.025 mol X (3 mol / 1 mol ) = .075 mol CO20.075 mol X (12 + 2*16) g /mol = 3.6 g CO2 In one step:2 g / 42g/mol X (3 mol / 1 mol ) X 48 g/mol = 6.86 g CO24 g / 32 g/mol X (3 mol / 5 mol ) X 48 g/mol = 3.6 g CO2mass/ MM        X coefficient ratio  X MM (new)
4 0
3 years ago
POINTS!!!!
Setler79 [48]
C) 3 Moles
This is because of the molecular structure shown in the image

5 0
3 years ago
The diagram above depicts an energy releasing process involving the uranium atom. Which form of energy does this process depict?
mariarad [96]

A nuclear energy is the answer

5 0
3 years ago
How many moles are in 1.51 x 10^26 atoms of xenon? will mark brainlyest
zhuklara [117]

0.94Answer:

Explanation:

TO find the number of moles in a substance given its number of  

entities we use the formela

7 0
3 years ago
Predict the products and write the balanced chemical equation for this reaction. Include the physical state of the product(s).
sukhopar [10]

Answer:

Al(C2H3O2)3 (aq) + 3AgNO3 (aq) ------>Al(NO3)3(aq) + 3Ag(C2H3O2)(s)

Explanation:

A chemical reaction refers to an interaction between two or more chemical species that leads to the formation of other new chemical species.

There are many types of chemical reactions. The type shown above is called a double replacement reaction. In this type of reaction, ions exchange partners in the product.

A chemical reaction is said to be balanced when the number of atoms of each element on the left hand and right hand sides of the reaction equation are exactly the same.

5 0
3 years ago
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