All categories

4 years ago

Which of the following molecules has a double bond? A. butane B. 2-butyne C. cyclopentane D. 1-methylcyclohexene

Chemistry

1 answer:

Tanzania [10]4 years ago

3 0

D. would be my guess im almost positive that its right

You might be interested in

A sample of O2, under occupies 500ml at 25.0°C. What volume will the sample occupy at 0.0°C

NeX [460]

Answer:

458ml

Explanation:

According to charles law, $\frac{V_{1}}{T_{1}} =\frac{V_{2}}{T_{2}}$

Given values,

Volume occupied $V_{2}=500ml$

Temperature $T_{1}=25.0^{\circ}C=25+273=298K$

Second temperature $T_{2}=0.0^{\circ}C=273K$

Volume $V_{2}=?$

From charles law, $V_{2}=\frac{V_{1} \times T_{2}}{T_{1}}$ \\$=\frac{500 \times 273}{298}$\\$=458ml$

$\therefore$ Volume occupied by the oxygen at 0.0°C is 458ml

7 0

3 years ago

Which can be used to prevent initial entry of bacteria into the body

ddd [48]

Washing your hands before eating?

7 0

4 years ago

Read 2 more answers

A 37.2 g sample of copper at 99.8 °C is carefully placed into an insulated container containing 188 g of water at 18.5 °C. Calcu

klasskru [66]

Answer:

T₂ = 19.95°C

Explanation:

From the law of conservation of energy:

$Heat\ Lost\ by\ Copper = Heat\ Gained\ by\ Water\\m_cC_c\Delta T_c = m_wC_w\Delta T_w$

where,

mc = mass of copper = 37.2 g

Cc = specific heat of copper = 0.385 J/g.°C

mw = mass of water = 188 g

Cw = specific heat of water = 4.184 J/g.°C

ΔTc = Change in temperature of copper = 99.8°C - T₂

ΔTw = Change in temperature of water = T₂ - 18.5°C

T₂ = Final Temperature at Equilibrium = ?

Therefore,

$(37.2\ g)(0.385\ J/g.^oC)(99.8\ ^oC-T_2)=(188\ g)(4.184\ J/g.^oC)(T_2-18.5\ ^oC)\\99.8\ ^oC-T_2 = \frac{(188\ g)(4.184\ J/g.^oC)}{(37.2\ g)(0.385\ J/g.^oC)}(T_2-18.5\ ^oC)\\\\99.8\ ^oC-T_2 = (54.92) (T_2-18.5\ ^oC)\\54.92T_2+T_2 = 99.8\ ^oC + 1016.02\ ^oC\\\\T_2 = \frac{1115.82\ ^oC}{55.92}$

6 0

3 years ago

6. Steel is a metallic-like material but it is not a pure element. It is a alloy.

Y_Kistochka [10]

Answer:

true

hope this helps! have an amazing day!

8 0

3 years ago

Which pair of compounds will form a buffer in aqueous solution?

nikdorinn [45]

Buffer solutions consist of an aqueous solution of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffer solutions are used to have better control of the pH of solutions.

An example of a weak acid and its conjugate base is acetic acid (CH3COOH) and sodium acetate (CH3COONa).

7 0

3 years ago