How many meters in 1000 mm

Answers

Answer 1
Answer: 1000 mm equals 1 meter
Answer 2
Answer: 1000 mm equals 1 meter. 

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In order to separate two substances by fractional crystallization, the two substances must differ in which of the following?(A) solubility
(B) specific gravity
(C) vapor pressure
(D) viscosity
(E) freezing point

Answers


I would say vapor pressure, but I could be wrong. Good luck ^^

Disorder in the universe increases because A. spontaneous changes produce more order in a system.
B. work produces disorder in a system.
C. work produces waste heat, which leaves a system.
D. all of the above

Answers

The correct answer would be the letter C.
A is obviously not right since it says "more order". B is incorrect because work is obligatory to make an order. If A and B are wrong, then D must be wrong. You're left with C, which is the only true statement here.

Explanation:In thermodynamics, a parameter representing the state of disorder of a system at the atomic, ionic, or molecular level; the larger the disorder the upper the entropy. A live of disorder within the universe or of the inconvenience of the energy during a system to try to work.

The correct answer would be letter C. A is obviously not right, since it says "more order". B is incorrect because work is obligatory to make order. If A and B are wrong, then D must be wrong. You're left with C, which is the only true statement here.

Which information about a chemical reaction is provided by a potential energy diagram?(1) the oxidation states of the reactants and products(2) the average kinetic energy of the reactants and products
(3) the change in solubility of the reacting substances
(4) the energy released or absorbed during the reaction

Answers

Answer: (4) the energy released or absorbed during the reaction

Explanation: Potential energy diagram is the representation of energy with the course of reaction. It shows the energy of reactants, activation energy which is the energy required by the reactants to cross the energy barrier and the energy of the products.

Thus the difference of energy of products and energy of reactants gives us the energy released or absorbed during the reaction.

\Delta H=E_P-E_R

where \Delta H = enthalpy of reaction

E_P = energy of products

E_R = energy of reactants

If E_P > E_R , energy is absorbed and reaction is endothermic

E_P < E_R , energy is released and the reaction is exothermic.

D. The energy released or absorbed during the reaction 

Why is salt put on icy roads and sidewalks in the winter?

Answers

so that ice would not melts and it helps to keep grip for walking or driving

Which of the following would not affect the rate of dissolution of salt in a beaker of water?a. stirring the solution
b. increasing the pressure of the solution
c. decreasing the size of the salt particles
d. increasing the temperature of the solution

Answers

The following which would not affect the rate of dissolution of salt in a beaker of water is:

  • B. increasing the pressure of the solution

The dissolution of salt in a beaker of water increases when an external force stirs it which makes it move from its initial position to a new position.

As a result of this, we can see that if there is a decrease in the size of salt in the beaker of water, there would also be a change in the dissolution of salt in the water.

However, increasing the pressure of the solution would not affect the rate of dissolution of salt in the beaker of water.

Therefore, the correct answer is option B

Read more here:

brainly.com/question/1302627

Answer: Option (b) is the correct answer.

Explanation:

When we stir a solution then its particles start to move from their initial position leading to more number of collisions between them.

As a result, rate of dissolution increases with stirring.

When we increase the pressure then no change in dissolution occurs because in liquids and solids pressure does not play any role is solubility or dissolution.

When we decrease the size of solute particles then there occurs an increase in surface area of solute. Hence, due to this more number of solute particles are able to come in contact with the solvent.

This will lead to more number of collisions. Therefore, rate of dissolution will increase.

Also, when we increase the temperature then molecules of solution will gain kinetic energy leading to more number of collisions which will eventually lead to increase in rate of dissolution.

Thus, we can conclude that out of the given options increasing the pressure of the solution would not affect the rate of dissolution of salt in a beaker of water.

If the pressure, volume, and temperature of a gas are known, which can most likely be found by using the ideal gas law

Answers

the ideal gas law equation is as follows

PV = nRT

where P - pressure

V - volume

n - number of moles

R - universal gas constant

T - temperature

so if the pressure, volume and temperature are already known

we are left with n and R

since R is the universal gas constant that has a known fixed value then R too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation


A.) the molar amount of gas

Hope it helps!