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konstantin123 [22]
3 years ago
13

Plsz do solv this question hpl​

Chemistry
1 answer:
emmasim [6.3K]3 years ago
7 0
We are given the resistance and voltage of this lamp and we are asked to find the current; the equation that relates these together is Ohm’s Law, V = IR. Simply plug and solve:

V = IR
(220 V) = I(484 Ohms)
I = 0.4545 Amps

The lamp has a current of 0.4545 Amps passing through it under these conditions.

Hope this helps!
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What type of cryptography uses two keys instead of just one, generating both a private and a public key?
Alexxx [7]

Answer:

It is known as asymmetric key cryptography it is also called public key cryptography.

Explanation:

Asymmetric key cryptography method makes use of two keys.One is used for encryption and the second one for decryption. The public key serves to encrypt plain text or verify a digital signature, while the private key is used to decrypt or decipher the encrypted text or to create a digital signature.

3 0
3 years ago
Label the following changes as Physical or
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Answer:

17

Two clear liquids mix and form a

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3 years ago
Which types of reactions would result in a change in temperature?
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Answer:

Chemical reaction involves the breaking of bonds in the reactants and formation of bonds in the products. ... If a reaction is exothermic, more energy is released when the bonds of the products are formed than it takes to break the bonds of the reactants. This is the reason for temperature change during a reaction.

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Here are just a few everyday demonstrations that temperature changes the rate of chemical reaction: Cookies bake faster at higher temperatures. Bread dough rises more quickly in a warm place than in a cool one.

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3 years ago
2. Balance the equation below, and answer the following question: What volume of chlorine gas, measured at STP, is needed to com
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Balanced equation: 2Na(s) + Cl₂(g) ---> 2NaCl(s)

when we have STP conditions, we can use this conversion: 1 mol = 22.4 L

first, we have to convert grams to molecules using the molar mass, and then use mole to mole ratio from the balanced equation. 

molar mass of Na= 23.0 g/mol
 ratio: 2 mol Na= 1 mol Cl₂ (based on coefficients of balanced equation)

calculations:

6.25 g Na ( \frac{1 mol Na}{23.0 g} ) ( \frac{1 mol Cl_2}{2 mol Na} ) ( \frac{22.4 L}{1 mol} )= 3.04 L
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Lack of vegetative cover allows erosion which washes away soil nutrients, further worsening the soil against soil vegetative cover.

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