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gayaneshka [121]

3 years ago

8

Competition is likely to occur between which two organisms?

1 answer:

MatroZZZ [7]3 years ago

7 0

<h3>Full question found from another source:</h3>

5. Competition is likely to occur between which two organisms?

A Owls and bacteria

B Deer and butterflies

C Grass and strawberry plants

D Goldfish and rabbits

Answer:

C

Explanation:

Grass and strawberry plants compete for the same resources such as nutrients, water, habitat, and sunlight.

Bacteria and owls rely on completely different resources and mechanisms to survive - bacteria are single cell organisms and owl are complex birds

Deer and butterflies are also are not in competition with eachother - they don't occupy the same habitats, eat the same food or have the same prey.

Goldfish and rabbits will never encounter eachother, given that one lives in water and one lives on land. They do not compete for the same food source or habitat.

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Use the scenario to answer the following question. Four scientists observed an area of land that had been cleared of all trees a

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Answer:

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3 years ago

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A student collects 1.00 L of a gaseous hydrocarbon at 27 °C and 101 kPa. The mass of the sample is 1.79 g. The hydrocarbon has t

Zinaida [17]

A.ch4 ;D ;D;D;D;D;D;D;D;D;D;D;D;D;D

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3 years ago

In a blast furnace, elemental iron is produced from a mixture of coke (c), iron ore (fe3o4), and other reactants. an important r

jok3333 [9.3K]

Reaction sequence:

2c(s) + o2(g) -> 2co(g)

fe3o4(s) + 4co(g) -> 3fe(l) + 4co2(g)

According to first equation, 2 moles of carbon produce 2 moles of carbon monoxide. So 1 mole of carbon will produce 1 mol of carbon monoxide (the same number).

According to the second equation, 4 moles of carbon monoxide produce 3 moles of iron. We should make the cross multiplication with those numbers:

4 moles CO/3 moles iron = 1 mol CO/x

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5 0

3 years ago

ruslelena [56]

Answer:

a. ionic, 211.62g/mol

b. molecular, 149g/mol

c. molecular, 342g/mol

Explanation:

Ionic Compound: These are compounds (2 or more elements) where atoms of the element have lost or gained electrons, thus they are ions, thus the name ionic. An easy way to identify ionic compounds is to see if there are any metals. Metals tend to give up their electron to a non-metal. It maybe helpful to familiarize which parts of the periodic table have metals and non-metals.

Molecular Compounds: These are compounds (2 or more elements) that are neutral. An easy way to identify them is that the compound is made up of just non-metals.

Molar Mass is the masses of each individual element in the compound. Refer to the periodic table for the masses and add them up carefully, remember to multiply their mass based on how many molecules there are in the compound, like for a, we can find the mass of NO3, but we need to multiply it by 2 since we have 2 molecules of NO3.

a. Sr(NO3)2

Sr= 87.62

NO3= 14 + (3 x 16)= 62

Sr + 2 (NO3)

87.62 + (2 x 62)= 211.6

b. (NH4)3PO4

NH4= 14 + 4 = 18

PO4= 30.97 + (4 x 16)= 94.9

(NH4 x 3) + PO4

(18 x 3) + 94.9 = 149

c. C12H22O11

(12 x C) + (22 x H) + (11 x O)

(12 x 12) + (22 x 1) + (11 x 16)

144 + 22 + 176= 342

4 0

3 years ago

How many moles of KClO3 must decompose in order to produce 9 moles of oxygen gas (O2) using the following reaction by completing

mezya [45]

<u>Answer:</u> 6 moles of $KClO_3$ will be decomposed.

<u>Explanation:</u>

We are given:

Moles of oxygen gas produced = 9 moles

The chemical equation for the decomposition of $KClO_3$ follows:

$2KClO_3\rightarrow 2KCl+3O_2$

By the stoichiometry of the reaction:

If 3 moles of oxygen gas is produced by 2 moles of $KClO_3$

So, 9 moles of oxygen gas will be produced by = $\frac{2}{3}\times 9=6mol$ of $KClO_3$

Hence, 6 moles of $KClO_3$ will be decomposed.

4 0

3 years ago