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dezoksy [38]
2 years ago
7

You are pushing on a heavy door, trying to slide it open. If your friend stands behind you and helps you push, how have the forc

es changed? There will be less friction. The applied force does not change. The net force will decrease. The net force applied will increase. Number line with point marked right of center labeled 300 N on the left side 100 N on the right side Assessment navigation
Chemistry
1 answer:
NeTakaya2 years ago
6 0

Answer:

o tudo bie ms ouemuyllen quearomuit oajuda rvoc  mi psarcisoqu e termnei ed cmoepetar esta questlã.oê

Explanation:

a egur oguta nestáincompel ta

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For the following reaction, 28.6 grams of zinc oxide are allowed to react with 9.54 grams of water . zinc oxide(s) water(l) zinc
maw [93]

Answer:

34.9 g of Zn(OH)₂ is the maximum mass that can be formed

Explanation:

Let's state the reaction:

ZnO(s)  + H₂O(l) → Zn(OH)₂ (aq)

First of all, we need to determine the moles of each reactant and state the limiting:

28.6 g . 1mol /81.38 g = 0.351 moles of ZnO

9.54 g . 1mol /18 g = 0.53 moles of water

As ratio is 1:1, for 0.53 moles of water, we need 0.53 moles of ZnO, but we only have 0.351, so the limiting reactant is the ZnO.

Ratio with the product is also 1:1. From 0.351 moles of oxide we can produce 0.351 moles of hydroxide. Let's calculate the mass:

0.351 mol . 99.4 g /1mol = 34.9 g

3 0
3 years ago
If the reactants contain one chlorine molecule, do you know how many chlorine atoms will be in the product? Include conversion o
max2010maxim [7]

Answer:

The number of Chlorine atoms in the product is 2.

Explanation:

The law of conservation of mass states that matter can neither be created nor destroyed in a chemical reaction.

The reactants contain one chlorine molecule(Cl_{2}) which has two chlorine atoms.

Then, according to law of conservation of matter, the product must contain two chlorine atoms.

4 0
3 years ago
Which of the following is true about the composition of ionic compounds?
Andrej [43]
A. Anions and cations
4 0
3 years ago
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if a television with mass 15kg is lifted to a shelf of height 1.2m, how much gravitational potential energy is added to the tele
belka [17]

P =mgh

You have mass, g =9.8 m/s2 and height calculate the potential energy P

6 0
3 years ago
Which model of an atom is correctly labeled?
Andreas93 [3]

Answer:

B

DUH

The nucleus is made up of the protons (which have a positive charge) and neutrons and surrounded by a cloud of electrons ( which have a negative charge ).

8 0
3 years ago
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