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mash [69]
3 years ago
11

Which one is it ASAP

Chemistry
2 answers:
Gelneren [198K]3 years ago
6 0
4 is D. 5 is C. 6 is D i guess. 7 is D.
crimeas [40]3 years ago
4 0
Question 4 answer: Gravity only pulls large objects together. 

Question 5 answer: Friction

Question 6 answer: Unbalanced Force

Question 7 answer: Reaction Force.
Hope this helps!

Aye sir!
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7. What is the name of an element with 3 protons and 5 neutrons?
rewona [7]

Answer: Lithium - 8

6 0
2 years ago
Read 2 more answers
Why is ph at the equivalence point larger than 7 when you titrate a weak acid with a strong base?
lozanna [386]

Answer:

The equilibrium is shifted to the formation of OH⁻.

Explanation:

AH + OH⁻  ⇄  A⁻ + H₂O

At the equivalence point, the acid AH has entirely been converted to A⁻, which is its conjugated base. This causes the equilibrium to shif to consume the excess of A⁻, which leads to production of OH⁻. This is why, at the equivalence point, the pH is larger than 7.

3 0
3 years ago
Three different rocks that each weigh 50 grams are put out in the sunlight. After two hours, they are all at the same temperatur
Brilliant_brown [7]

Answer:

All rocks have same thermal conductivity.

Explanation:

Rocks are heated with the sunlight exposure. Different types of rocks have different thermal conductivity. The heat energy of the rocks is measure in Joules. The size and thermal conductivity of the rocks is important property which determines their heating capacity.

8 0
3 years ago
What method of forecasting uses averages to predict future weather?
amid [387]

The climatology method of forecasting uses averages to predict future weather.

Answer: B

Explanation

The satellites and advanced technologies have helped meteorologists to forecast accurately.

There are four types of forecasting methods prevailing now.

They are climatology method, persistence method, analog method and trends method.

The persistence and trends method uses the previous day forecast and compare with today's condition to forecast about future.

The analog method is a complex method where the forecasting is done by comparing present weather condition with a similar condition occurred in the past to predict for future.

The climatology is the simplest method which uses average of weather conditions observed in the previous days to get accurate forecast for future.

4 0
3 years ago
Read 2 more answers
Hydrogen is manufactured on an industrial scale by this sequence of reactions:
hichkok12 [17]

Answer:

K=K_1*K_2\\\\K=\frac{[H_2]^3[CO_2][H_2]}{[CH_4][H_2O][H_2O]}

Explanation:

Hello there!

In this case, for the given chemical reaction, it turns out firstly necessary to write the equilibrium expression for both reactions 1 and 2:

K_1=\frac{[CO][H_2]^3}{[CH_4][H_2O]} \\\\K_2=\frac{[CO_2][H_2]}{[CO][H_2O]}

Now, when we combine them to get the overall expression, we infer these two are multiplied to get:

K=K_1*K_2\\\\K=\frac{[CO][H_2]^3}{[CH_4][H_2O]} *\frac{[CO_2][H_2]}{[CO][H_2O]}\\\\K=\frac{[H_2]^3[CO_2][H_2]}{[CH_4][H_2O][H_2O]}

Regards!

6 0
3 years ago
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