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konstantin123 [22]

2 years ago

11

HELPPP PLZZZZ :( ONLY ANSWER IF U ACUALLY KNOOOW ALL

1 answer:

chubhunter [2.5K]2 years ago

4 0

Answer:

Net: 1N

Explanation:

1.) Net:1N, direction: left

2.) Net: 1N, direction: down

3.) Net: 0N, no motion

4.) Net: 1N, direction: up

5.) Net: 1N, direction: up

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Compare the function of a switch in an electric circuit to the function of a water faucet. How are they different?

Sever21 [200]

They both turn something on, and the way they are different is the way they turn it off<span>
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3 years ago

9- Which pair of formulae represents two alkanes? (1 mark)

Ksenya-84 [330]

Answer:

A) CH4 and C8H18

Explanation:

General Formula for an Alkane = CnH2n+2

This means for every number of Carbon (C) atoms, there are twice as many Hydrogen (H) atoms with an additional two added onto that.

Therefore, if there is one Carbon Atom, and we multiply that by two, and then add an additional two, we get 4 Hydrogen atoms, so CH4, which is our first Formulae

Secondly, if we have eight Carbon Atoms, and we multiple that by two (16), and then add an additional two, we get 18 Hydrogen atoms, so C8H18, which is our second Formulae

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8 0

1 year ago

Consider the insoluble compound nickel(II) hydroxide , Ni(OH)2 . The nickel ion also forms a complex with cyanide ions . Write a

natali 33 [55]

Answer: Equilibrium constant for this reaction is $2.8 \times 10^{15}$ .

Explanation:

Chemical reaction equation for the formation of nickel cyanide complex is as follows.

$Ni(OH)_{2}(s) + 4CN^{-}(aq) \rightleftharpoons [Ni(CN)_{4}^{2-}](aq) + 2OH^{-}(aq)$

We know that,

K = $K_{f} \times K_{sp}$

We are given that, $K_{f} = 1.0 \times 10^{31}$

and, $K_{sp} = 2.8 \times 10^{-16}$

Hence, we will calculate the value of K as follows.

K = $K_{f} \times K_{sp}$

K = $(1.0 \times 10^{31}) \times (2.8 \times 10^{-16})$

= $2.8 \times 10^{15}$

Thus, we can conclude that equilibrium constant for this reaction is $2.8 \times 10^{15}$ .

4 0

2 years ago

SOMEONE PLEASE HELPPP

xxTIMURxx [149]

A is the correct awnser Beacuse it ether right kne

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2 years ago

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Ivenika [448]

Answer:

pollution

Explanation:

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2 years ago