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3 years ago

What kinds of rocks would you expect to see on Mars? What evidence do you have

Chemistry

1 answer:

N76 [4]3 years ago

3 0

like what are they made of? if so iron, due to iron oxide appearing as red hence why mars is red

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Which types of reactions would result in the formation of precipitate?

IRINA_888 [86]

Answer:

Double Displacement Reaction

Explanation:

A double displacement reaction is a type of chemical reaction in which the reactant ions exchange places to form new products. Usually, a double displacement reaction results in precipitate formation.

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3 years ago

The steps of scientific method in order are?

ArbitrLikvidat [17]

The answer is choice B

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4 years ago

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Balance the following chemical equations

grigory [225]

Answer:

1. 2,3,2

2. 4,5,2

3. 3,1,1

Explanation:

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3 years ago

When science is used to create a new instrument, such as a cell phone, we say that a new ___________ has been developed.

kari74 [83]

Is it Technology? What have you already tried?

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4 years ago

Water flows from the bottom of a large tank where the pressure is 100 psig through a pipe to a turbine which produces 5.82 hp. T

Marianna [84]

Explanation:

Bernoulli equation for the flow between bottom of the tank and pipe exit point is as follows.

$\frac{p_{1}}{\gamma} + \frac{V^{2}_{1}}{2g} + z_{1}$ = $\frac{p_{2}}{\gamma} + \frac{V^{2}_{2}}{2g} + z_{2} + h_{f} + h_{t}$

$\frac{(100 \times 144)}{62.43} + 0 + h[tex] = [tex]\frac{(50 \times 144)}{(62.43)} + \frac{(70)^{2}}{2(32.2)} + 0 + 40 + 60$

h = $\frac{(50 \times 144)}{(62.43)} + \frac{(70)^{2}}{2(32.2)} + 40 + 60 - \frac{(100 \times 144)}{(62.43)}$

= 60.76 ft

Hence, formula to calculate theoretical power produced by the turbine is as follows.

P = mgh

= $100 \times 60.76$

= 6076 lb.ft/s

= 11.047 hp

Efficiency of the turbine will be as follows.

$\eta_{t}$ = $\frac{P_{actual}}{P_{theoretical}}$ × 100%

= $\frac{5.82}{11.047} \times 100%$

= 52.684%

Thus, we can conclude that the efficiency of the turbine is 52.684%.

4 0

3 years ago